Steinar Engen
About
Steinar Engen (1946) is a Professor at the Department of Mathematical Sciences, statistics group, and works for the department of biology. Professor Engen has an MSc in Physics with diploma in Statistics from NTNU and a D.Phil. degree from the Department of Biomathematics, University of Oxford.
Work Experience
- 1990- Full Professor in Biostatistics, AVH/NTNU, Department of Math. and Stat.
- 1988- Advisor, 20% position at The Norwegian Institute for Nature Research, (NINA)
- 1978-1990 Associate Professor, Norges Lærerhøgskole, University of Trondheim
- 1977 Assistant Professor, NTNU, Mathematical Institute
- 1975-1977 Scholarship, University of Trondheim
- 1971-1975 Scholarship, NAVF and the Royal Society in England
Honors and awards
- 2015 Recipient of the Wildlife Society Publication Award – Outstanding Article for Evolutionary Consequences of nonselective harvesting in density-dependent populations by Steinar Engen, Russell Lande and Bernt-Erik Sæther. American Naturalist 184(6):714-726, 2014
- 2013 The Norwegian Research Council Award for outstanding research (Møbius Prize) together with Professor Bernt-Erik Sæther
- 2005 The Norwegian Academy of Science, elected member
- 2003 Royal Norwegian Society of Science and Letters, elected member
- 2002 International Statistical Institute, member
Research Experience from Foreign Institutions
- 2001-2013 Frequent visits of 1-2 weeks at Eugene, Oregon, University of California, San Diego, University of Oxford and Imperial College, London and Silwood Park2001 4 weeks. Centre of Biodiversity Studies, Natural Museum, Milwaukee
- 2000 3 weeks. University of California, San Diego, Biological Institute
- 1998 2 weeks. University of California, San Diego, Biological Institute
- 1995 4 weeks. University of Oregon, Biological Institute
- 1993 4 months. University of Oregon, Biological Institute
- 1978 3 weeks. Penn State University, Statistical Institute
- 1972-75 Oxford, Department of Biomathematics
Scientific production and citations
173 papers in international journals, Web of science: h-index 39 (including two books), more than 4800 citations (including two books and some book chapters). Google scholar: More than 6500 sitations, h-index 46. (august 2015)
Teaching Experience
Professor Engen has supervised 12 cand.scient. students, 3 dr.scient. students in Statistics, and 6 dr.scient. in Biology. He has supervised 9 candidates with completed doctoral degree.
Publications
2024
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solbu, Erik Blystad.
(2024)
Assessing the sensitivity and resistance of communities in a changing environment.
Journal of Animal Ecology
Academic article
2023
-
Lande, Russell Scott;
Grøtan, Vidar;
Engen, Steinar;
Visser, M.E.;
Sæther, Bernt-Erik.
(2023)
Estimating Density Dependence, Environmental Variance, and Long-Term Selection on a Stage-Structured Life History.
The American Naturalist
Academic article
2022
-
Lee, Aline Magdalena;
Jarillo, Javier;
Peeters, Bart;
Hansen, Brage Bremset;
Cao-Garcia, Francisco;
Sæther, Bernt-Erik.
(2022)
Population responses to harvesting in fluctuating environments.
Climate Research (CR)
Academic article
-
Peeters, Bart;
Grøtan, Vidar;
Gamelon, Marlène;
Veiberg, Vebjørn;
Lee, Aline Magdalena;
Fryxell, John M..
(2022)
Harvesting can stabilise population fluctuations and buffer the impacts of extreme climatic events.
Ecology Letters
Academic article
-
Bellier, Edwige;
Engen, Steinar;
Jensen, Thomas Correll.
(2022)
Seasonal diversity dynamics of a boreal zooplankton community
under climate impact.
Oecologia
Academic article
-
Kvalnes, Thomas;
Sæther, Bernt-Erik;
Engen, Steinar;
Roulin, Alexandre.
(2022)
Density-dependent selection and the maintenance of colour polymorphism in barn owls.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
2021
-
Engen, Steinar;
Tian, Huaiyu;
Yang, Ruifu;
Bjørnstad, Ottar Nordal;
Whittington, Jason;
Stenseth, Nils Christian.
(2021)
The ecological dynamics of the coronavirus epidemics during transmission from outside sources when R0 is successfully managed below one.
Royal Society Open Science
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2021)
Structure of the G-matrix in relation to phenotypic contributions to fitness.
Theoretical Population Biology
Academic article
-
Marquez, Jonatan;
Sæther, Bernt-Erik;
Aanes, Sondre;
Engen, Steinar;
Salthaug, Are;
Lee, Aline Magdalena.
(2021)
Age-dependent patterns of spatial autocorrelation in fish populations.
Ecology
Academic article
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Coste, Christophe.
(2021)
An evolutionary and ecological community model for
distribution of phenotypes and abundances among
competing species.
The American Naturalist
Academic article
-
Bellier, Edwige;
Sæther, Bernt-Erik;
Engen, Steinar.
(2021)
Sustainable strategies for harvesting predators and prey in a fluctuating environment.
Ecological Modelling
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2021)
Reproductive value and analyses of population dynamics of age-structured populations .
Oxford University Press
Academic chapter/article/Conference paper
2020
-
Lee, Aline Magdalena;
Myhre, Ane Marlene;
Markussen, Stine Svalheim;
Engen, Steinar;
Solberg, Erling Johan;
Haanes, Hallvard.
(2020)
Decomposing demographic contributions to the effective population size with moose as a case study.
Molecular Ecology
Academic article
-
Wright, Jonathan;
Solbu, Erik Blystad;
Engen, Steinar.
(2020)
Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation.
Ecology and Evolution
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Engen, Steinar.
(2020)
Spatial covariation of competing species in a fluctuating environment.
Ecology
Academic article
-
Jarillo, Javier ;
Sæther, Bernt-Erik;
Engen, Steinar;
Cao-garcia, Francisco Javier.
(2020)
Spatial scales of population synchrony in predator-prey systems.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Gustafsson, Lars;
Grøtan, Vidar;
Vriend, Stefan.
(2020)
Density-Dependent Adaptive Topography in a Small Passerine Bird, the Collared Flycatcher.
The American Naturalist
Academic article
-
Van Moorter, Bram;
Engen, Steinar;
Fryxell, John M.;
Panzacchi, Manuela;
Nilsen, Erlend Birkeland;
Mysterud, Atle.
(2020)
Consequences of barriers and changing seasonality on population dynamics and harvest of migratory ungulates.
Theoretical Ecology
Academic article
-
Engen, Steinar;
Wright, Jonathan;
Araya-Ajoy, Yimen;
Sæther, Bernt-Erik.
(2020)
Phenotypic evolution in stochastic environments: The contribution of frequency- and density-dependent selection.
Evolution
Academic article
2019
-
Fredricson Marquez, Jonatan;
Lee, Aline Magdalena;
Aanes, Sondre;
Engen, Steinar;
Herfindal, Ivar;
Salthaug, Are.
(2019)
Spatial scaling of population synchrony in marine fish depends on their life history.
Ecology Letters
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2019)
Towards a predictive conservation biology: the devil is in the behaviour.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic literature review
-
Gamelon, Marlène;
Vriend, Stefan;
Engen, Steinar;
Adriaensen, Frank;
Dhondt, A.A.;
Evans, Simon R..
(2019)
Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size.
Ecology Letters
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2019)
Ecological dynamics and large scale phenotypic differentiation in density-dependent populations.
Theoretical Population Biology
Academic article
2018
-
jarillo, javier diaz;
Sæther, Bernt-Erik;
Engen, Steinar;
cao, francisco javier.
(2018)
Spatial scales of population synchrony of two competing species: effects of harvesting and strength of competition.
Oikos
Academic article
-
Engen, Steinar;
Cao, Francisco J.;
Sæther, Bernt-Erik.
(2018)
The effect of harvesting on the spatial synchrony of population fluctuations.
Theoretical Population Biology
Academic article
-
Solbu, Erik Blystad;
Diserud, Ola Håvard;
Kålås, John Atle;
Engen, Steinar.
(2018)
Heterogeneity among species and community dynamics – Norwegian bird communities as a case study.
Ecological Modelling
Academic article
-
Engen, Steinar;
Lee, Aline Magdalena;
Sæther, Bernt-Erik.
(2018)
Spatial distribution and optimal harvesting of an age-structured population in a fluctuating environment.
Mathematical Biosciences
Academic article
2017
-
Kvalnes, Thomas;
Ringsby, Thor Harald;
Jensen, Henrik;
Hagen, Ingerid Julie;
Rønning, Bernt;
Pärn, Henrik.
(2017)
Reversal of response to artificial selection on body size in a wild passerine bird.
Evolution
Academic article
-
Engen, Steinar.
(2017)
Spatial synchrony and harvesting in fluctuating populations:Relaxing the small noise assumption.
Theoretical Population Biology
Academic article
-
Ovaskainen, Otso;
Tikhonov, Gleb;
Dunson, David;
Grøtan, Vidar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
How are species interactions structured in species-rich communities? A new method for analysing time-series data.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Markussen, Stine Svalheim;
Engen, Steinar.
(2017)
Modelling time to population extinction when individual reproduction is autocorrelated.
Ecology Letters
Academic article
-
Vindenes, Yngvild;
Engen, Steinar.
(2017)
Demographic stochasticity and temporal autocorrelation in the dynamics of structured populations.
Oikos
Academic article
-
Myhre, Ane Marlene;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Effective size in density‐dependent two‐sex populations: the effect of mating systems.
Journal of Evolutionary Biology
Academic article
-
Gamelon, Marlène;
Grøtan, Vidar;
Nilsson, Anna L. K.;
Engen, Steinar;
Hurrell, James W.;
Jerstad, Kurt.
(2017)
Interactions between demography and environmental effects are important determinants of population dynamics.
Science Advances
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
r- and K-selection in fluctuating populations is determined by the evolutionary trade-off between two fitness measures: Growth rate and lifetime reproductive success.
Evolution
Short communication
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Extinction risk and lack of evolutionary rescue under resource depletion or area reduction.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Evolution of stochastic demography with life history tradeoffs in density-dependent age-structured populations.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
2016
-
Myhre, Ane Marlene;
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Effective size of density-dependent populations in fluctuating environments.
Evolution
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Optimal age of maturity in fluctuating environments under r- and K-selection.
Oikos
Academic article
-
Engen, Steinar;
Solbu, Erik Blystad;
Sæther, Bernt-Erik.
(2016)
Neutral or non-neutral communities: temporal dynamics provide the answer.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Coulson, Tim;
Grant, Peter R.;
Visser, Marcel E..
(2016)
Demographic routes to variability and regulation in bird populations.
Nature Communications
Academic article
-
Sæther, Bernt-Erik;
Visser, Marcel E;
Grøtan, Vidar;
Engen, Steinar.
(2016)
Evidence for r-and K-selection in a wild bird population: A reciprocal link between ecology and evolution.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Spatial synchrony in population dynamics: The effects of demographic stochasticity and density regulation with a spatial scale.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Phenotypic evolution by distance in fluctuating environments: The contribution of dispersal, selection and random genetic drift.
Theoretical Population Biology
Academic article
-
Kvalnes, Thomas;
Sæther, Bernt-Erik;
Haanes, Hallvard;
Røed, Knut;
Engen, Steinar;
Solberg, Erling Johan.
(2016)
Harvest-induced phenotypic selection in an island population of moose, Alces alces.
Evolution
Academic article
-
Gamelon, Marlène;
Grøtan, Vidar;
Engen, Steinar;
Bjørkvoll, Eirin Marie;
Visser, Marcel E.;
Sæther, Bernt-Erik.
(2016)
Density dependence in an age-structured population of great tits: identifying the critical age classes.
Ecology
Academic article
-
Bjørkvoll, Eirin Marie;
Lee, Aline Magdalena;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Stien, Audun;
Engen, Steinar.
(2016)
Demographic buffering of life histories? Implications of the choice of measurement scale.
Ecology
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2016)
Characteristics of temporal changes in communities where dynamics differ between species.
Theoretical Population Biology
Academic article
2015
-
Lee, Aline Magdalena;
Bjørkvoll, Eirin Marie;
Hansen, Brage Bremset;
Albon, Steve D.;
Stien, Audun;
Sæther, Bernt-Erik.
(2015)
An integrated population model for a long-lived ungulate:
more efficient data use with Bayesian methods.
Oikos
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2015)
Guidelines when estimating temporal changes in density dependent populations.
Ecological Modelling
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard;
Sæther, Bernt-Erik.
(2015)
Modelling and statistical analysis of demographic and environmental changes in populations and communities.
NTNU
Doctoral dissertation
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2015)
The concept of fitness in fluctuating environments.
Trends in Ecology & Evolution
Academic literature review
2014
-
Bartzke, Gundula;
May, Roelof Frans;
Stokke, Sigbjørn;
Røskaft, Eivin;
Engen, Steinar.
(2014)
Comparative effects of power lines and roads on moose (Alces alces) habitat selection.
Chapter
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2014)
Evolutionary consequences of nonselective harvesting in density-dependent populations.
The American Naturalist
Academic article
-
Engen, Steinar;
Kvalnes, Thomas;
Sæther, Bernt-Erik.
(2014)
Estimating phenotypic selection in age-structured populations by removing transient fluctuations.
Evolution
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2014)
Evolution in fluctuating environments: Decomposing selection into additive components of the robertson-price equation.
Evolution
Academic article
-
Bellier, Edwige Louise;
Grøtan, Vidar;
Engen, Steinar;
Schartau, Ann Kristin;
Herfindal, Ivar;
Finstad, Anders Gravbrøt.
(2014)
Distance decay of similarity, effects of environmental noise and ecological heterogeneity among species in the spatio-temporal dynamics of a dispersal-limited community.
Ecography
Academic article
2013
-
Sandvik, Hanno;
Sæther, Bernt-Erik;
Holmern, Tomas;
Tufto, Jarle;
Engen, Steinar;
Roy, HE.
(2013)
Generic ecological impact assessments of alien species in Norway: a semi-quantitative set of criteria.
Biodiversity and Conservation
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Armitage, Kenneth B.;
Blumstein, Daniel T.;
Clutton-Brock, Tim H.;
Dobson, F. Stephen.
(2013)
Estimating the effect of temporally autocorrelated environments on the demography of density-independent age-structured populations.
Methods in Ecology and Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar.
(2013)
Species diversity and community similarity in fluctuating environments: parametric approaches using species abundance distributions.
Journal of Animal Ecology
Academic literature review
-
Sæther, Bernt-Erik;
Coulson, Tim;
Grøtan, Vidar;
Engen, Steinar;
Altwegg, Res;
Armitage, Kenneth B..
(2013)
How Life History Influences Population Dynamics in Fluctuating Environments.
The American Naturalist
Academic article
-
Linnerud, Marit;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2013)
Interspecific differences in stochastic population dynamics explains variation in Taylor's temporal power law.
Oikos
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2013)
Changing environments causing time delays in population dynamics.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2013)
A Quantitative Genetic Model of r- and K-Selection in a Fluctuating Population.
The American Naturalist
Academic article
2012
-
Bellier, Edwige;
Grøtan, Vidar;
Engen, Steinar;
Schartau, Ann Kristin;
Diserud, Ola Håvard;
Finstad, Anders Gravbrøt.
(2012)
Combining counts and incidence data: an efficient approach for estimating the log-normal species abundance distribution and diversity indices.
Oecologia
Academic article
-
Grøtan, Vidar;
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik;
DeVries, PJ.
(2012)
Seasonal cycles of species diversity and similarity in a tropical butterfly community.
Journal of Animal Ecology
Academic article
-
Tufto, Jarle;
Lande, Russell;
Ringsby, Thor Harald;
Engen, Steinar;
Sæther, Bernt-Erik;
Walla, T. R..
(2012)
Estimating Brownian motion dispersal rate, longevity and population density from spatially explicit mark-recapture data on tropical butterflies.
Journal of Animal Ecology
Academic article
-
Kvalnes, Thomas;
Engen, Steinar;
Sæther, Bernt-Erik;
Jensen, Henrik.
(2012)
Package 'lmf': Functions for estimation and inference of selection in age-structured populations.
Software
-
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar.
(2012)
Effects of demographic structure on key properties of stochastic density-independent population dynamics.
Theoretical Population Biology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Kvalnes, Thomas;
Jensen, Henrik.
(2012)
Estimating fluctuating selection in age-structured populations.
Journal of Evolutionary Biology
Academic article
-
Bjørkvoll, Eirin Marie;
Grøtan, Vidar;
Aanes, Sondre;
Sæther, Bernt-Erik;
Engen, Steinar;
Aanes, Ronny.
(2012)
Stochastic Population Dynamics and Life-History Variation in Marine Fish Species.
The American Naturalist
Academic article
2011
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2011)
Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity.
Ecography
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Engen, Steinar.
(2011)
Demographic Stochasticity, Allee Effects, and Extinction: The Influence of Mating System and Sex Ratio.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2011)
Rarity, life history and scaling of the dynamics in time and space of British birds.
Journal of Animal Ecology
Academic article
-
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2011)
The influence of persistent individual differences and age at maturity on effective population size.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Van de Pol, Martijn;
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar;
Ens, Bruno J;
Oosterbeek, Kees.
(2011)
Poor environmental tracking can make extinction risk insensitive to the colour of environmental noise.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2011)
EVOLUTION OF A PLASTIC QUANTITATIVE TRAIT IN AN AGE-STRUCTURED POPULATION IN A FLUCTUATING ENVIRONMENT.
Evolution
Academic article
-
Engen, Steinar;
Aagaard, Kaare ;
Bongard, Terje.
(2011)
Disentangling the effects of heterogeneity, stochastic dynamics and sampling in a community of aquatic insects.
Ecological Modelling
Academic article
-
Vindenes, Yngvild;
Engen, Steinar;
Sæther, Bernt-Erik.
(2011)
Integral projection models for finite populations in a stochastic environment.
Ecology
Academic article
-
Bjørkvoll, Eirin Marie;
Aanes, Sondre;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Aanes, Ronny.
(2011)
Beaked redfish and golden redfish: Estimating abundances at age and population dynamical parameters by fitting a stochastic population model to abundance data within a Bayesian framework.
ICES Arctic Fisheries Working Group
Report
-
Certain, Gregoire;
Skarpaas, Olav;
Bjerke, Jarle Werner;
Framstad, Erik;
Lindholm, Markus;
Nilsen, Jan-Erik.
(2011)
The Nature Index: A General Framework for Synthesizing Knowledge on the State of Biodiversity.
PLOS ONE
Academic article
2010
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2010)
Population Analyses.
Oxford University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2010)
Population Consequences of Climate Change.
Oxford University Press
Academic chapter/article/Conference paper
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Gienapp, P.
(2010)
Estimating the ratio of effective to actual size of an age-structured population from individual demographic data.
Journal of Evolutionary Biology
Academic article
-
Van de Pol, Martijn;
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar;
Ens, BJ;
Oosterbeek, K.
(2010)
Effects of climate change and variability on population dynamics in a long-lived shorebird.
Ecology
Academic article
-
Vindenes, Yngvild;
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2010)
FIXATION OF SLIGHTLY BENEFICIAL MUTATIONS: EFFECTS OF LIFE HISTORY.
Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Odden, John;
Linnell, John D. C.;
Grøtan, Vidar;
Andrén, Henrik.
(2010)
Sustainable harvest strategies for age-structured Eurasian lynx populations: The use of reproductive value.
Biological Conservation
Academic article
2009
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2009)
Fixation probability of beneficial mutations in a fluctuating population.
Genetics Research
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2009)
Reproductive Value and Fluctuating Selection in an Age-Structured Population.
Genetics
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Dobson, Stephen.
(2009)
Reproductive Value and the Stochastic Demography of Age-Structured Populations.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2009)
An evolutionary maximum principle for density-dependent population dynamics in a fluctuating environment.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Steinnes, Eiliv;
Gaare, E;
Engen, Steinar.
(2009)
Influence of soil acidification in southern Norway on the Cs-137 exposure of moose?.
Science of the Total Environment
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Johan H., van Balen;
Perdeck, Albert C.;
Visser, Marcel E..
(2009)
Spatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populations.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2009)
Critical parameters for predicting population fluctuations of some British passerines.
Journal of Animal Ecology
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Lillegård, Magnar;
Solberg, EJ;
Engen, Steinar.
(2009)
Geographical variation in the influence of density dependence and climate on the recruitment of Norwegian moose.
Oecologia
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, EJ.
(2009)
Effective size of harvested ungulate populations.
Animal Conservation
Academic article
2008
-
Beissinger, SR;
Wunderle, JW;
Meyers, JM;
Sæther, Bernt-Erik;
Engen, Steinar.
(2008)
Anatomy of a bottleneck: diagnosing factors limiting population growth in the Puerto Rican parrot.
Ecological Monographs
Academic literature review
-
Jonsson, B;
Jonsson, N;
Hindar, K;
Northcote, TG;
Engen, Steinar.
(2008)
Asymmetric competition drives lake use of coexisting salmonids.
Oecologia
Academic article
-
Vindenes, Yngvild;
Engen, Steinar;
Sæther, Bernt-Erik.
(2008)
Individual heterogeneity in vital parameters and demograpiic stochasticity.
The American Naturalist
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Sverdrup-Thygeson, A;
Grøtan, Vidar;
Ødegaard, F.
(2008)
Assessment of species diversity from species abundance distributions at different localities.
Oikos
Academic article
-
Engen, Steinar;
Lande, R.;
Sæther, Bernt-Erik.
(2008)
A general model for analyzing Taylor´s spatial scaling laws.
Ecology
Academic article
-
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2008)
Understanding mating systems: A mathematical model of the pair formation process.
Theoretical Population Biology
Academic article
-
Sæther, Bernt-Erik;
Lillegård, Magnar;
Grøtan, Vidar;
Drever, Mark C.;
Engen, Steinar;
Nudds, Thomas D..
(2008)
Geographical gradients in the population dynamics of North American prairie ducks.
Journal of Animal Ecology
Academic article
-
Engen, Steinar;
Grøtan, Vidar;
Halley, Duncan;
Nygård, Torgeir.
(2008)
An efficient multivariate approach for estimating preference when individual observations are dependent.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar;
Bregnballe, Thomas;
Both, Christiaan;
Tryjanowski, Piotr.
(2008)
Forms of density regulation and (quasi-) stationary distributions of population sizes in birds.
Oikos
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Drever, Mark C..
(2008)
Estimation of population parameters from aerial counts of north American mallards: a cautionary tale.
Ecological Applications
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Filli, Flurin;
Engen, Steinar.
(2008)
Effects of climate on population fluctuations of ibex.
Global Change Biology
Academic article
2007
-
Engen, Steinar.
(2007)
Stochastic growth and extinction in a spatial geometric Brownian population model with migration and correlated noise.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Festa-Bianchet, M.
(2007)
Using reproductive value to estimate key parameters in density-independent age-structured populations.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar;
Fiedler, W;
Matthysen, E;
Visser, ME.
(2007)
The extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populations.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Lillegård, Magnar;
Grøtan, Vidar;
Filli, F;
Engen, Steinar.
(2007)
Predicting fluctuations of reintroduced ibex populations: the importance of density dependence, environmental stochasticity and uncertain population estimates.
Journal of Animal Ecology
Academic article
-
Engen, Steinar.
(2007)
Heterogeneity in dynamic species abundance model: the selective effect of extinction processes.
Mathematical Biosciences
Academic article
-
Aanes, Sondre;
Engen, Steinar;
Sæther, Bernt-Erik;
Aanes, Ronny.
(2007)
Estimation of the parameters of fish stock dynamics from catch-at-age data and indices of abundance: can natural and fishing mortality be separated?.
Canadian Journal of Fisheries and Aquatic Sciences
Academic article
-
Engen, Steinar;
Ringsby, Thor Harald;
Sæther, Bernt-Erik;
Lande, Russell;
Jensen, Henrik;
Lillegård, Magnar.
(2007)
Effective size of fluctuating populations with two sexes and overlapping generations.
Evolution
Academic article
-
Engen, Steinar.
(2007)
Heterogeneous communities with lognormal species abundance distribution: species-area curves and sustainability.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, EJ;
Heim, M.
(2007)
Estimating the growth of a newly established moose population using reproductive value.
Ecography
Academic article
2006
-
Lande, R;
Engen, Steinar;
Sæther, Bernt-Erik;
Coulson, T.
(2006)
Estimating density dependence from time series of population age structure.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Tryjanowski, P.;
Barbraud, C;
Engen, Steinar;
Fulin, M.
(2006)
Climate and spatio-temporal variation in the population dynamics of a long-distance migrant, the white stork.
Journal of Animal Ecology
Academic article
-
Ringsby, Thor Harald;
Sæther, Bernt-Erik;
Jensen, Henrik;
Engen, Steinar.
(2006)
Demographic characteristics of extinction in a small, insular population of house sparrows in Northern Norway.
Conservation Biology
Academic article
2005
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Bootstrap methods for estimating spatial synchrony of fluctuating populations: an addendum.
Oikos
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik;
Weimerskirch, H.
(2005)
Extinction in relation to demographic and environmental stochasticity in age-structured models.
Mathematical Biosciences
Academic article
-
Asbjørnsen, E.J.;
Sæther, Bernt-Erik;
Linnell, J.D.C.;
Engen, Steinar;
Andersen, Reidar;
Bretten, T.
(2005)
Predicting the growth of a small introduced muskox population using population prediction intervals.
Journal of Animal Ecology
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, E.J.;
Linnell, J.D.C.;
Andersen, Reidar.
(2005)
Climate causes large-scale spatial synchrony in population fluctuations of a temperate herbivore.
Ecology
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik;
Toresen, Reidar.
(2005)
Harvesting strategies for Norwegian spring-spawning herring.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Lande, R;
Engen, Steinar;
Weimerskich, H;
Lillegård, M.;
Altwegg, R.
(2005)
Generation time and temporal scaling of bird population dynamics.
Nature
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Persson, J;
Brøseth, H;
Landa, A.;
Willebrand, T..
(2005)
Management strategies for the wolverine in Scandinavia.
Journal of Wildlife Management
Academic article
-
Sæther, Bernt-Erik;
Sutherland, W.J.;
Engen, Steinar.
(2005)
Climate influences on avian populations dynamics.
Advances in Ecological Research
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik;
Bregnballe, T.
(2005)
Estimating the pattern of synchrony in fluctuating populations.
Journal of Animal Ecology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Generalizations of the Moran effect explaining spatial synchrony in population fluctuations.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Moller, AP;
Visser, ME;
Matthysen, E;
Fiedler, W.
(2005)
Time to extinction of bird populations.
Ecology
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Bootstrap methods for estimating spatial synchrony of fluctuating populations.
Oikos
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik.
(2005)
Effective size of a fluctuating age-structured population.
Genetics
Academic article
2004
-
Sæther, Bernt-Erik;
Sutherland, W.J.;
Engen, Steinar.
(2004)
Climate influences on avian population dynamics.
Advances in Ecological Research
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2004)
Stochastic population theory faces reality in the laboratory.
Trends in Ecology & Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Møller, A.P.;
Weimerskich, H;
Visser, M.E.;
Fiedler, W.
(2004)
Life history variation predicts the effects of demographic stochasticity on avian population dynamics.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, R;
Møller, A.P.;
Bensch, S;
Hasselquist, D.
(2004)
Time to extinction in relation to mating system and type of density regulation in populations with two sexes.
Journal of Animal Ecology
Academic article
-
Walla, TR;
Engen, Steinar;
DeVries, PJ;
Lande, R.
(2004)
Modeling vertical beta-diversity in tropical butterfly communities.
Oikos
Academic article
2003
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik.
(2003)
Demographic stochasticity and Allee effects in populations with two sexes.
Ecology
Academic article
-
Lindqvist, Bo Henry;
Taraldsen, Gunnar;
Lillegård, Magnar;
Engen, Steinar.
(2003)
A counterexample to a claim about stochastic simulations.
Biometrika
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2003)
Demographic stochasticity and Allee effects in populations with two sexes.
Ecology
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2003)
Stochastic population dynamics in ecology and conservation.
Oxford University Press
Oxford University Press
Non-fiction book
-
Sæther, Bernt-Erik;
Engen, Steinar;
Persson, J.;
Brøseth, Henrik;
Landa, Arild;
Willebrand, T..
(2003)
Levedyktighetsanalyser av skandinavisk jerv.
NINA Fagrapport
Report
-
Sæther, Bernt-Erik;
Engen, Steinar;
Møller, Anders Pape;
Matthysen, Erik;
Adriaensen, Frank;
Fiedler, Wolfgang.
(2003)
Climate variation and regional gradients in population dynamics of two hole-nesting passerines.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2003)
Wildlife Population Growth R.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Macroecology.
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Wildlife Population Growth Rates.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Pattern of variation in avian population growth rates.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
The routes to extinction.
Academic chapter/article/Conference paper
2002
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell;
Both, Christiaan;
Visser, Marcel.
(2002)
Density-dependence and stochastic variation in the dynamics of newly established small songbird population.
Oikos
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2002)
The spalitial scale of population fluctuations and quasi-extinction.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Estimating density-dependence in age-structured populations.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Lande, Russell.
(2002)
Migration and spatio-temporal variation in population dynamics in a heterogeneous environment.
Ecology
Academic article
-
Engen, Steinar;
Lande, Russell;
Walla, T.;
DeVries, P.J..
(2002)
Analysing spatial structure of communities by two-dimensional Poisson lognormal species abundance model.
The American Naturalist
Academic article
-
Aanes, S;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Sustainable harvesting strategies of willow grouse (Lagopus lagopus) in a fluctuating environment.
Ecological Applications
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Estimating density dependence in time-series of age-structured popultions.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Matthysen, Erik.
(2002)
Demographic charachteristics and population dynamical patterns of solitary birds.
Science
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik;
Filli, Florin;
Matthysen, Erik;
Weimerskirch, H..
(2002)
Estimating density dependence from population time series using demographic theory and life story data.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Lande, Russell;
Engen, Steinar;
Both, Christiaan;
Visser, Marcel.
(2002)
Density dependence and stochastic variation in the dynamics of a newly established small songbird population.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Pattern of variation in avian population growth rates.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Filli, Florin;
Aanes, Ronny;
Schrøder, W.;
Andersen, Reidar.
(2002)
Stochastic population dynamics of an introduced swiss population of the ibex.
Ecology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Lande, Russell.
(2002)
Migration and spatiotemporal variation in population dynamics in a heterogeneous environment.
Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Filli, Florin;
Aanes, Ronny;
Schrøder, W.;
Andersen, Reidar.
(2002)
Contrasting stochastic population dynamics of two introdused Swiss populations of Ibex.
Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Including uncertainties in population viability analysis using Population Prediction Intervals.
Population Viability Analysis
Textbook
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Including stochasticity in population viability analysis.
Academic chapter/article/Conference paper
2001
-
Sæther, Bernt-Erik;
Møller, Anders Pape;
Engen, Steinar.
(2001)
Stochastic population dynamics and time to extinction of a declining population of barn swallows.
Journal of Animal Ecology
Academic article
-
Engen, Steinar.
(2001)
A dynamic and spatial model with migration generating the log-Gaussian field of population densities.
Mathematical Biosciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, Erling Johan.
(2001)
Optimal harvest of age-structured populations of moose Alces alces in a fluctuating environment.
Wildlife Biology
Academic article
-
Lande, Russell;
Sæther, Bernt-Erik;
Engen, Steinar.
(2001)
Sustainable exploitation of fluctuation populations.
Cambridge University Press
Academic chapter/article/Conference paper
2000
-
Diserud, Ola Håvard;
Engen, Steinar.
(2000)
A General and Dynamic Species Abundance Model, Embracing the Lognormal and the Gamma Models.
The American Naturalist
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2000)
Predicting the time to quasi-extinction for populations far below their carrying capacity.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell;
Arcese, Peter;
Smith, James N.M..
(2000)
Estimating the time to extinction in an island population of song sparrows.
Proceedings of the Royal Society of Edinburgh Section B
Academic article
-
Ødegaard, Frode;
Diserud, Ola Håvard;
Engen, Steinar;
Aagaard, Kaare Hilmar.
(2000)
The Magnitude of Local Host Specificity for Phytophagous Insects and its Implications for Estimates of Global Species Richness.
Conservation Biology
Academic article
-
Tufto, Jarle;
Sæther, Bernt-Erik;
Engen, Steinar;
Arcese, Peter;
Jerstad, Kurt;
Røstad, Ole Wiggo.
(2000)
Bayesian meta-analysis of demographic parameters in three small, temperate passerines.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Tufto, Jarle;
Engen, Steinar;
Jerstad, Kurt;
Røstad, Ole Wiggo;
Skåtan, Jon Erling.
(2000)
Population dynamical consequences of climate change for a small temperate songbird.
Science
Academic article
1999
-
Lillegård, Magnar;
Engen, Steinar.
(1999)
Exact confidence intervals generated by conditional parametric bootstrapping.
Journal of Applied Statistics
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(1999)
Spatial scale of population synchrony : environmental correlation versus dispersal and density regulation.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell.
(1999)
Finite metapopulation models with density-dependent migration and stochastic local dynamics.
Proceedings of the Royal Society of Edinburgh Section B
Academic article
-
Tufto, Jarle;
Sæther, Bernt-Erik;
Engen, Steinar;
Swenson, Jon E.;
Sandegren, Finn.
(1999)
Harvesting strategies for conserving minimum viable populations based on World Conservation Union criteria: brown bears in Norway.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Tufto, Jarle;
Engen, Steinar;
Jerstad, Kurt;
Røstad, Ole Wiggo;
Skåtan, Jon Erling.
(1999)
Populasjonsdynamikken til fossekall-bestanden i Lygnavassdraget.
Utredning for DN (3)
Report
1998
-
Sæther, Bernt-Erik;
Engen, Steinar;
Bakke, Øyvind;
Swenson, Jon E.;
Sandegren, Finn.
(1998)
Assessing the viability of Scandinavian brown bear, Ursus arctos, populations: the effects of uncertain parameter estimates.
Oikos
Academic article
-
Tufto, Jarle;
Engen, Steinar;
Raybould, Alan F.;
Hindar, Kjetil.
(1998)
Analysis of Genetic Structure and Dispersal Patterns in a Population of Sea Beet.
Genetics
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Stochastic population models: Some concepts, definitions and results.
Oikos
Academic article
-
Engen, Steinar;
Bakke, Øyvind;
Islam, Aminul.
(1998)
Demographic and environmental stochasticity - concepts and definitions.
Biometrics
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Stochastic population models : some concepts, definitions and results.
Oikos
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Extinction times in finite metapopulation models with stochastic local dynamics.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Islam, Aminul;
McCleery, Robin;
Perrins, Christopher.
(1998)
Environmental stochasticity and extinction risk in a population of a small songbird, the great tit.
The American Naturalist
Academic article
1997
-
Engen, Steinar;
Lillegård, Magnar.
(1997)
Stochastic simulations conditioned on sufficient statistics.
Biometrika
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(1997)
Harvesting strategies for fluctuating populations based on uncertain population estimates.
Journal of Theoretical Biology
Academic article
-
Lande, Russell;
Sæther, Bernt-Erik;
Engen, Steinar.
(1997)
Threshold harvesting for sustainability of fluctuating resources.
Ecology
Academic article
-
Tufto, Jarle;
Engen, Steinar;
Hindar, Kjetil.
(1997)
Stochastic dispersal processes in plant populations.
Theoretical Population Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(1997)
Forvaltning av små bestander : en teoretisk bakgrunn.
Norsk institutt for naturforskning
Non-fiction book
-
Sæther, Bernt-Erik;
Engen, Steinar;
Swenson, Jon;
Bakke, Øyvind;
Sandegren, Finn.
(1997)
Levedyktighetsanalyser av skandinavisk brunbjørn.
NINA fagrapport (25)
Report
1996
-
Tufto, Jarle;
Engen, Steinar;
Hindar, Kjetil.
(1996)
Inferring patterns of migration from gene frequencies under equilibrium conditions.
Genetics
Academic article
Journal publications
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solbu, Erik Blystad.
(2024)
Assessing the sensitivity and resistance of communities in a changing environment.
Journal of Animal Ecology
Academic article
-
Lande, Russell Scott;
Grøtan, Vidar;
Engen, Steinar;
Visser, M.E.;
Sæther, Bernt-Erik.
(2023)
Estimating Density Dependence, Environmental Variance, and Long-Term Selection on a Stage-Structured Life History.
The American Naturalist
Academic article
-
Lee, Aline Magdalena;
Jarillo, Javier;
Peeters, Bart;
Hansen, Brage Bremset;
Cao-Garcia, Francisco;
Sæther, Bernt-Erik.
(2022)
Population responses to harvesting in fluctuating environments.
Climate Research (CR)
Academic article
-
Peeters, Bart;
Grøtan, Vidar;
Gamelon, Marlène;
Veiberg, Vebjørn;
Lee, Aline Magdalena;
Fryxell, John M..
(2022)
Harvesting can stabilise population fluctuations and buffer the impacts of extreme climatic events.
Ecology Letters
Academic article
-
Bellier, Edwige;
Engen, Steinar;
Jensen, Thomas Correll.
(2022)
Seasonal diversity dynamics of a boreal zooplankton community
under climate impact.
Oecologia
Academic article
-
Kvalnes, Thomas;
Sæther, Bernt-Erik;
Engen, Steinar;
Roulin, Alexandre.
(2022)
Density-dependent selection and the maintenance of colour polymorphism in barn owls.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Tian, Huaiyu;
Yang, Ruifu;
Bjørnstad, Ottar Nordal;
Whittington, Jason;
Stenseth, Nils Christian.
(2021)
The ecological dynamics of the coronavirus epidemics during transmission from outside sources when R0 is successfully managed below one.
Royal Society Open Science
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2021)
Structure of the G-matrix in relation to phenotypic contributions to fitness.
Theoretical Population Biology
Academic article
-
Marquez, Jonatan;
Sæther, Bernt-Erik;
Aanes, Sondre;
Engen, Steinar;
Salthaug, Are;
Lee, Aline Magdalena.
(2021)
Age-dependent patterns of spatial autocorrelation in fish populations.
Ecology
Academic article
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Coste, Christophe.
(2021)
An evolutionary and ecological community model for
distribution of phenotypes and abundances among
competing species.
The American Naturalist
Academic article
-
Bellier, Edwige;
Sæther, Bernt-Erik;
Engen, Steinar.
(2021)
Sustainable strategies for harvesting predators and prey in a fluctuating environment.
Ecological Modelling
Academic article
-
Lee, Aline Magdalena;
Myhre, Ane Marlene;
Markussen, Stine Svalheim;
Engen, Steinar;
Solberg, Erling Johan;
Haanes, Hallvard.
(2020)
Decomposing demographic contributions to the effective population size with moose as a case study.
Molecular Ecology
Academic article
-
Wright, Jonathan;
Solbu, Erik Blystad;
Engen, Steinar.
(2020)
Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation.
Ecology and Evolution
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Engen, Steinar.
(2020)
Spatial covariation of competing species in a fluctuating environment.
Ecology
Academic article
-
Jarillo, Javier ;
Sæther, Bernt-Erik;
Engen, Steinar;
Cao-garcia, Francisco Javier.
(2020)
Spatial scales of population synchrony in predator-prey systems.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Gustafsson, Lars;
Grøtan, Vidar;
Vriend, Stefan.
(2020)
Density-Dependent Adaptive Topography in a Small Passerine Bird, the Collared Flycatcher.
The American Naturalist
Academic article
-
Van Moorter, Bram;
Engen, Steinar;
Fryxell, John M.;
Panzacchi, Manuela;
Nilsen, Erlend Birkeland;
Mysterud, Atle.
(2020)
Consequences of barriers and changing seasonality on population dynamics and harvest of migratory ungulates.
Theoretical Ecology
Academic article
-
Engen, Steinar;
Wright, Jonathan;
Araya-Ajoy, Yimen;
Sæther, Bernt-Erik.
(2020)
Phenotypic evolution in stochastic environments: The contribution of frequency- and density-dependent selection.
Evolution
Academic article
-
Fredricson Marquez, Jonatan;
Lee, Aline Magdalena;
Aanes, Sondre;
Engen, Steinar;
Herfindal, Ivar;
Salthaug, Are.
(2019)
Spatial scaling of population synchrony in marine fish depends on their life history.
Ecology Letters
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2019)
Towards a predictive conservation biology: the devil is in the behaviour.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic literature review
-
Gamelon, Marlène;
Vriend, Stefan;
Engen, Steinar;
Adriaensen, Frank;
Dhondt, A.A.;
Evans, Simon R..
(2019)
Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size.
Ecology Letters
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2019)
Ecological dynamics and large scale phenotypic differentiation in density-dependent populations.
Theoretical Population Biology
Academic article
-
jarillo, javier diaz;
Sæther, Bernt-Erik;
Engen, Steinar;
cao, francisco javier.
(2018)
Spatial scales of population synchrony of two competing species: effects of harvesting and strength of competition.
Oikos
Academic article
-
Engen, Steinar;
Cao, Francisco J.;
Sæther, Bernt-Erik.
(2018)
The effect of harvesting on the spatial synchrony of population fluctuations.
Theoretical Population Biology
Academic article
-
Solbu, Erik Blystad;
Diserud, Ola Håvard;
Kålås, John Atle;
Engen, Steinar.
(2018)
Heterogeneity among species and community dynamics – Norwegian bird communities as a case study.
Ecological Modelling
Academic article
-
Engen, Steinar;
Lee, Aline Magdalena;
Sæther, Bernt-Erik.
(2018)
Spatial distribution and optimal harvesting of an age-structured population in a fluctuating environment.
Mathematical Biosciences
Academic article
-
Kvalnes, Thomas;
Ringsby, Thor Harald;
Jensen, Henrik;
Hagen, Ingerid Julie;
Rønning, Bernt;
Pärn, Henrik.
(2017)
Reversal of response to artificial selection on body size in a wild passerine bird.
Evolution
Academic article
-
Engen, Steinar.
(2017)
Spatial synchrony and harvesting in fluctuating populations:Relaxing the small noise assumption.
Theoretical Population Biology
Academic article
-
Ovaskainen, Otso;
Tikhonov, Gleb;
Dunson, David;
Grøtan, Vidar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
How are species interactions structured in species-rich communities? A new method for analysing time-series data.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Markussen, Stine Svalheim;
Engen, Steinar.
(2017)
Modelling time to population extinction when individual reproduction is autocorrelated.
Ecology Letters
Academic article
-
Vindenes, Yngvild;
Engen, Steinar.
(2017)
Demographic stochasticity and temporal autocorrelation in the dynamics of structured populations.
Oikos
Academic article
-
Myhre, Ane Marlene;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Effective size in density‐dependent two‐sex populations: the effect of mating systems.
Journal of Evolutionary Biology
Academic article
-
Gamelon, Marlène;
Grøtan, Vidar;
Nilsson, Anna L. K.;
Engen, Steinar;
Hurrell, James W.;
Jerstad, Kurt.
(2017)
Interactions between demography and environmental effects are important determinants of population dynamics.
Science Advances
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
r- and K-selection in fluctuating populations is determined by the evolutionary trade-off between two fitness measures: Growth rate and lifetime reproductive success.
Evolution
Short communication
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Extinction risk and lack of evolutionary rescue under resource depletion or area reduction.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2017)
Evolution of stochastic demography with life history tradeoffs in density-dependent age-structured populations.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Academic article
-
Myhre, Ane Marlene;
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Effective size of density-dependent populations in fluctuating environments.
Evolution
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Optimal age of maturity in fluctuating environments under r- and K-selection.
Oikos
Academic article
-
Engen, Steinar;
Solbu, Erik Blystad;
Sæther, Bernt-Erik.
(2016)
Neutral or non-neutral communities: temporal dynamics provide the answer.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Coulson, Tim;
Grant, Peter R.;
Visser, Marcel E..
(2016)
Demographic routes to variability and regulation in bird populations.
Nature Communications
Academic article
-
Sæther, Bernt-Erik;
Visser, Marcel E;
Grøtan, Vidar;
Engen, Steinar.
(2016)
Evidence for r-and K-selection in a wild bird population: A reciprocal link between ecology and evolution.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Spatial synchrony in population dynamics: The effects of demographic stochasticity and density regulation with a spatial scale.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2016)
Phenotypic evolution by distance in fluctuating environments: The contribution of dispersal, selection and random genetic drift.
Theoretical Population Biology
Academic article
-
Kvalnes, Thomas;
Sæther, Bernt-Erik;
Haanes, Hallvard;
Røed, Knut;
Engen, Steinar;
Solberg, Erling Johan.
(2016)
Harvest-induced phenotypic selection in an island population of moose, Alces alces.
Evolution
Academic article
-
Gamelon, Marlène;
Grøtan, Vidar;
Engen, Steinar;
Bjørkvoll, Eirin Marie;
Visser, Marcel E.;
Sæther, Bernt-Erik.
(2016)
Density dependence in an age-structured population of great tits: identifying the critical age classes.
Ecology
Academic article
-
Bjørkvoll, Eirin Marie;
Lee, Aline Magdalena;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Stien, Audun;
Engen, Steinar.
(2016)
Demographic buffering of life histories? Implications of the choice of measurement scale.
Ecology
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2016)
Characteristics of temporal changes in communities where dynamics differ between species.
Theoretical Population Biology
Academic article
-
Lee, Aline Magdalena;
Bjørkvoll, Eirin Marie;
Hansen, Brage Bremset;
Albon, Steve D.;
Stien, Audun;
Sæther, Bernt-Erik.
(2015)
An integrated population model for a long-lived ungulate:
more efficient data use with Bayesian methods.
Oikos
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2015)
Guidelines when estimating temporal changes in density dependent populations.
Ecological Modelling
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2015)
The concept of fitness in fluctuating environments.
Trends in Ecology & Evolution
Academic literature review
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2014)
Evolutionary consequences of nonselective harvesting in density-dependent populations.
The American Naturalist
Academic article
-
Engen, Steinar;
Kvalnes, Thomas;
Sæther, Bernt-Erik.
(2014)
Estimating phenotypic selection in age-structured populations by removing transient fluctuations.
Evolution
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2014)
Evolution in fluctuating environments: Decomposing selection into additive components of the robertson-price equation.
Evolution
Academic article
-
Bellier, Edwige Louise;
Grøtan, Vidar;
Engen, Steinar;
Schartau, Ann Kristin;
Herfindal, Ivar;
Finstad, Anders Gravbrøt.
(2014)
Distance decay of similarity, effects of environmental noise and ecological heterogeneity among species in the spatio-temporal dynamics of a dispersal-limited community.
Ecography
Academic article
-
Sandvik, Hanno;
Sæther, Bernt-Erik;
Holmern, Tomas;
Tufto, Jarle;
Engen, Steinar;
Roy, HE.
(2013)
Generic ecological impact assessments of alien species in Norway: a semi-quantitative set of criteria.
Biodiversity and Conservation
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Armitage, Kenneth B.;
Blumstein, Daniel T.;
Clutton-Brock, Tim H.;
Dobson, F. Stephen.
(2013)
Estimating the effect of temporally autocorrelated environments on the demography of density-independent age-structured populations.
Methods in Ecology and Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar.
(2013)
Species diversity and community similarity in fluctuating environments: parametric approaches using species abundance distributions.
Journal of Animal Ecology
Academic literature review
-
Sæther, Bernt-Erik;
Coulson, Tim;
Grøtan, Vidar;
Engen, Steinar;
Altwegg, Res;
Armitage, Kenneth B..
(2013)
How Life History Influences Population Dynamics in Fluctuating Environments.
The American Naturalist
Academic article
-
Linnerud, Marit;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2013)
Interspecific differences in stochastic population dynamics explains variation in Taylor's temporal power law.
Oikos
Academic article
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard.
(2013)
Changing environments causing time delays in population dynamics.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2013)
A Quantitative Genetic Model of r- and K-Selection in a Fluctuating Population.
The American Naturalist
Academic article
-
Bellier, Edwige;
Grøtan, Vidar;
Engen, Steinar;
Schartau, Ann Kristin;
Diserud, Ola Håvard;
Finstad, Anders Gravbrøt.
(2012)
Combining counts and incidence data: an efficient approach for estimating the log-normal species abundance distribution and diversity indices.
Oecologia
Academic article
-
Grøtan, Vidar;
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik;
DeVries, PJ.
(2012)
Seasonal cycles of species diversity and similarity in a tropical butterfly community.
Journal of Animal Ecology
Academic article
-
Tufto, Jarle;
Lande, Russell;
Ringsby, Thor Harald;
Engen, Steinar;
Sæther, Bernt-Erik;
Walla, T. R..
(2012)
Estimating Brownian motion dispersal rate, longevity and population density from spatially explicit mark-recapture data on tropical butterflies.
Journal of Animal Ecology
Academic article
-
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar.
(2012)
Effects of demographic structure on key properties of stochastic density-independent population dynamics.
Theoretical Population Biology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Kvalnes, Thomas;
Jensen, Henrik.
(2012)
Estimating fluctuating selection in age-structured populations.
Journal of Evolutionary Biology
Academic article
-
Bjørkvoll, Eirin Marie;
Grøtan, Vidar;
Aanes, Sondre;
Sæther, Bernt-Erik;
Engen, Steinar;
Aanes, Ronny.
(2012)
Stochastic Population Dynamics and Life-History Variation in Marine Fish Species.
The American Naturalist
Academic article
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2011)
Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity.
Ecography
Academic article
-
Lee, Aline Magdalena;
Sæther, Bernt-Erik;
Engen, Steinar.
(2011)
Demographic Stochasticity, Allee Effects, and Extinction: The Influence of Mating System and Sex Ratio.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2011)
Rarity, life history and scaling of the dynamics in time and space of British birds.
Journal of Animal Ecology
Academic article
-
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2011)
The influence of persistent individual differences and age at maturity on effective population size.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Van de Pol, Martijn;
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar;
Ens, Bruno J;
Oosterbeek, Kees.
(2011)
Poor environmental tracking can make extinction risk insensitive to the colour of environmental noise.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2011)
EVOLUTION OF A PLASTIC QUANTITATIVE TRAIT IN AN AGE-STRUCTURED POPULATION IN A FLUCTUATING ENVIRONMENT.
Evolution
Academic article
-
Engen, Steinar;
Aagaard, Kaare ;
Bongard, Terje.
(2011)
Disentangling the effects of heterogeneity, stochastic dynamics and sampling in a community of aquatic insects.
Ecological Modelling
Academic article
-
Vindenes, Yngvild;
Engen, Steinar;
Sæther, Bernt-Erik.
(2011)
Integral projection models for finite populations in a stochastic environment.
Ecology
Academic article
-
Certain, Gregoire;
Skarpaas, Olav;
Bjerke, Jarle Werner;
Framstad, Erik;
Lindholm, Markus;
Nilsen, Jan-Erik.
(2011)
The Nature Index: A General Framework for Synthesizing Knowledge on the State of Biodiversity.
PLOS ONE
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Gienapp, P.
(2010)
Estimating the ratio of effective to actual size of an age-structured population from individual demographic data.
Journal of Evolutionary Biology
Academic article
-
Van de Pol, Martijn;
Vindenes, Yngvild;
Sæther, Bernt-Erik;
Engen, Steinar;
Ens, BJ;
Oosterbeek, K.
(2010)
Effects of climate change and variability on population dynamics in a long-lived shorebird.
Ecology
Academic article
-
Vindenes, Yngvild;
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2010)
FIXATION OF SLIGHTLY BENEFICIAL MUTATIONS: EFFECTS OF LIFE HISTORY.
Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Odden, John;
Linnell, John D. C.;
Grøtan, Vidar;
Andrén, Henrik.
(2010)
Sustainable harvest strategies for age-structured Eurasian lynx populations: The use of reproductive value.
Biological Conservation
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2009)
Fixation probability of beneficial mutations in a fluctuating population.
Genetics Research
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2009)
Reproductive Value and Fluctuating Selection in an Age-Structured Population.
Genetics
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Dobson, Stephen.
(2009)
Reproductive Value and the Stochastic Demography of Age-Structured Populations.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2009)
An evolutionary maximum principle for density-dependent population dynamics in a fluctuating environment.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Steinnes, Eiliv;
Gaare, E;
Engen, Steinar.
(2009)
Influence of soil acidification in southern Norway on the Cs-137 exposure of moose?.
Science of the Total Environment
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Johan H., van Balen;
Perdeck, Albert C.;
Visser, Marcel E..
(2009)
Spatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populations.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Engen, Steinar;
Noble, DG;
Freckleton, RP.
(2009)
Critical parameters for predicting population fluctuations of some British passerines.
Journal of Animal Ecology
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Lillegård, Magnar;
Solberg, EJ;
Engen, Steinar.
(2009)
Geographical variation in the influence of density dependence and climate on the recruitment of Norwegian moose.
Oecologia
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, EJ.
(2009)
Effective size of harvested ungulate populations.
Animal Conservation
Academic article
-
Beissinger, SR;
Wunderle, JW;
Meyers, JM;
Sæther, Bernt-Erik;
Engen, Steinar.
(2008)
Anatomy of a bottleneck: diagnosing factors limiting population growth in the Puerto Rican parrot.
Ecological Monographs
Academic literature review
-
Jonsson, B;
Jonsson, N;
Hindar, K;
Northcote, TG;
Engen, Steinar.
(2008)
Asymmetric competition drives lake use of coexisting salmonids.
Oecologia
Academic article
-
Vindenes, Yngvild;
Engen, Steinar;
Sæther, Bernt-Erik.
(2008)
Individual heterogeneity in vital parameters and demograpiic stochasticity.
The American Naturalist
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Sverdrup-Thygeson, A;
Grøtan, Vidar;
Ødegaard, F.
(2008)
Assessment of species diversity from species abundance distributions at different localities.
Oikos
Academic article
-
Engen, Steinar;
Lande, R.;
Sæther, Bernt-Erik.
(2008)
A general model for analyzing Taylor´s spatial scaling laws.
Ecology
Academic article
-
Lee, Aline Magdalena;
Engen, Steinar;
Sæther, Bernt-Erik.
(2008)
Understanding mating systems: A mathematical model of the pair formation process.
Theoretical Population Biology
Academic article
-
Sæther, Bernt-Erik;
Lillegård, Magnar;
Grøtan, Vidar;
Drever, Mark C.;
Engen, Steinar;
Nudds, Thomas D..
(2008)
Geographical gradients in the population dynamics of North American prairie ducks.
Journal of Animal Ecology
Academic article
-
Engen, Steinar;
Grøtan, Vidar;
Halley, Duncan;
Nygård, Torgeir.
(2008)
An efficient multivariate approach for estimating preference when individual observations are dependent.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar;
Bregnballe, Thomas;
Both, Christiaan;
Tryjanowski, Piotr.
(2008)
Forms of density regulation and (quasi-) stationary distributions of population sizes in birds.
Oikos
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Drever, Mark C..
(2008)
Estimation of population parameters from aerial counts of north American mallards: a cautionary tale.
Ecological Applications
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Filli, Flurin;
Engen, Steinar.
(2008)
Effects of climate on population fluctuations of ibex.
Global Change Biology
Academic article
-
Engen, Steinar.
(2007)
Stochastic growth and extinction in a spatial geometric Brownian population model with migration and correlated noise.
Mathematical Biosciences
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik;
Festa-Bianchet, M.
(2007)
Using reproductive value to estimate key parameters in density-independent age-structured populations.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Grøtan, Vidar;
Fiedler, W;
Matthysen, E;
Visser, ME.
(2007)
The extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populations.
Journal of Animal Ecology
Academic article
-
Sæther, Bernt-Erik;
Lillegård, Magnar;
Grøtan, Vidar;
Filli, F;
Engen, Steinar.
(2007)
Predicting fluctuations of reintroduced ibex populations: the importance of density dependence, environmental stochasticity and uncertain population estimates.
Journal of Animal Ecology
Academic article
-
Engen, Steinar.
(2007)
Heterogeneity in dynamic species abundance model: the selective effect of extinction processes.
Mathematical Biosciences
Academic article
-
Aanes, Sondre;
Engen, Steinar;
Sæther, Bernt-Erik;
Aanes, Ronny.
(2007)
Estimation of the parameters of fish stock dynamics from catch-at-age data and indices of abundance: can natural and fishing mortality be separated?.
Canadian Journal of Fisheries and Aquatic Sciences
Academic article
-
Engen, Steinar;
Ringsby, Thor Harald;
Sæther, Bernt-Erik;
Lande, Russell;
Jensen, Henrik;
Lillegård, Magnar.
(2007)
Effective size of fluctuating populations with two sexes and overlapping generations.
Evolution
Academic article
-
Engen, Steinar.
(2007)
Heterogeneous communities with lognormal species abundance distribution: species-area curves and sustainability.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, EJ;
Heim, M.
(2007)
Estimating the growth of a newly established moose population using reproductive value.
Ecography
Academic article
-
Lande, R;
Engen, Steinar;
Sæther, Bernt-Erik;
Coulson, T.
(2006)
Estimating density dependence from time series of population age structure.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Grøtan, Vidar;
Tryjanowski, P.;
Barbraud, C;
Engen, Steinar;
Fulin, M.
(2006)
Climate and spatio-temporal variation in the population dynamics of a long-distance migrant, the white stork.
Journal of Animal Ecology
Academic article
-
Ringsby, Thor Harald;
Sæther, Bernt-Erik;
Jensen, Henrik;
Engen, Steinar.
(2006)
Demographic characteristics of extinction in a small, insular population of house sparrows in Northern Norway.
Conservation Biology
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Bootstrap methods for estimating spatial synchrony of fluctuating populations: an addendum.
Oikos
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik;
Weimerskirch, H.
(2005)
Extinction in relation to demographic and environmental stochasticity in age-structured models.
Mathematical Biosciences
Academic article
-
Asbjørnsen, E.J.;
Sæther, Bernt-Erik;
Linnell, J.D.C.;
Engen, Steinar;
Andersen, Reidar;
Bretten, T.
(2005)
Predicting the growth of a small introduced muskox population using population prediction intervals.
Journal of Animal Ecology
Academic article
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, E.J.;
Linnell, J.D.C.;
Andersen, Reidar.
(2005)
Climate causes large-scale spatial synchrony in population fluctuations of a temperate herbivore.
Ecology
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik;
Toresen, Reidar.
(2005)
Harvesting strategies for Norwegian spring-spawning herring.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Lande, R;
Engen, Steinar;
Weimerskich, H;
Lillegård, M.;
Altwegg, R.
(2005)
Generation time and temporal scaling of bird population dynamics.
Nature
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Persson, J;
Brøseth, H;
Landa, A.;
Willebrand, T..
(2005)
Management strategies for the wolverine in Scandinavia.
Journal of Wildlife Management
Academic article
-
Sæther, Bernt-Erik;
Sutherland, W.J.;
Engen, Steinar.
(2005)
Climate influences on avian populations dynamics.
Advances in Ecological Research
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik;
Bregnballe, T.
(2005)
Estimating the pattern of synchrony in fluctuating populations.
Journal of Animal Ecology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Generalizations of the Moran effect explaining spatial synchrony in population fluctuations.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Moller, AP;
Visser, ME;
Matthysen, E;
Fiedler, W.
(2005)
Time to extinction of bird populations.
Ecology
Academic article
-
Lillegård, Magnar;
Engen, Steinar;
Sæther, Bernt-Erik.
(2005)
Bootstrap methods for estimating spatial synchrony of fluctuating populations.
Oikos
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik.
(2005)
Effective size of a fluctuating age-structured population.
Genetics
Academic article
-
Sæther, Bernt-Erik;
Sutherland, W.J.;
Engen, Steinar.
(2004)
Climate influences on avian population dynamics.
Advances in Ecological Research
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2004)
Stochastic population theory faces reality in the laboratory.
Trends in Ecology & Evolution
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Møller, A.P.;
Weimerskich, H;
Visser, M.E.;
Fiedler, W.
(2004)
Life history variation predicts the effects of demographic stochasticity on avian population dynamics.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, R;
Møller, A.P.;
Bensch, S;
Hasselquist, D.
(2004)
Time to extinction in relation to mating system and type of density regulation in populations with two sexes.
Journal of Animal Ecology
Academic article
-
Walla, TR;
Engen, Steinar;
DeVries, PJ;
Lande, R.
(2004)
Modeling vertical beta-diversity in tropical butterfly communities.
Oikos
Academic article
-
Engen, Steinar;
Lande, R;
Sæther, Bernt-Erik.
(2003)
Demographic stochasticity and Allee effects in populations with two sexes.
Ecology
Academic article
-
Lindqvist, Bo Henry;
Taraldsen, Gunnar;
Lillegård, Magnar;
Engen, Steinar.
(2003)
A counterexample to a claim about stochastic simulations.
Biometrika
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2003)
Demographic stochasticity and Allee effects in populations with two sexes.
Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Møller, Anders Pape;
Matthysen, Erik;
Adriaensen, Frank;
Fiedler, Wolfgang.
(2003)
Climate variation and regional gradients in population dynamics of two hole-nesting passerines.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell;
Both, Christiaan;
Visser, Marcel.
(2002)
Density-dependence and stochastic variation in the dynamics of newly established small songbird population.
Oikos
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(2002)
The spalitial scale of population fluctuations and quasi-extinction.
The American Naturalist
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Estimating density-dependence in age-structured populations.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Lande, Russell.
(2002)
Migration and spatio-temporal variation in population dynamics in a heterogeneous environment.
Ecology
Academic article
-
Engen, Steinar;
Lande, Russell;
Walla, T.;
DeVries, P.J..
(2002)
Analysing spatial structure of communities by two-dimensional Poisson lognormal species abundance model.
The American Naturalist
Academic article
-
Aanes, S;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Sustainable harvesting strategies of willow grouse (Lagopus lagopus) in a fluctuating environment.
Ecological Applications
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2002)
Estimating density dependence in time-series of age-structured popultions.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Matthysen, Erik.
(2002)
Demographic charachteristics and population dynamical patterns of solitary birds.
Science
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik;
Filli, Florin;
Matthysen, Erik;
Weimerskirch, H..
(2002)
Estimating density dependence from population time series using demographic theory and life story data.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Lande, Russell;
Engen, Steinar;
Both, Christiaan;
Visser, Marcel.
(2002)
Density dependence and stochastic variation in the dynamics of a newly established small songbird population.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Pattern of variation in avian population growth rates.
Philosophical Transactions of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Filli, Florin;
Aanes, Ronny;
Schrøder, W.;
Andersen, Reidar.
(2002)
Stochastic population dynamics of an introduced swiss population of the ibex.
Ecology
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik;
Lande, Russell.
(2002)
Migration and spatiotemporal variation in population dynamics in a heterogeneous environment.
Ecology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Filli, Florin;
Aanes, Ronny;
Schrøder, W.;
Andersen, Reidar.
(2002)
Contrasting stochastic population dynamics of two introdused Swiss populations of Ibex.
Ecology
Academic article
-
Sæther, Bernt-Erik;
Møller, Anders Pape;
Engen, Steinar.
(2001)
Stochastic population dynamics and time to extinction of a declining population of barn swallows.
Journal of Animal Ecology
Academic article
-
Engen, Steinar.
(2001)
A dynamic and spatial model with migration generating the log-Gaussian field of population densities.
Mathematical Biosciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Solberg, Erling Johan.
(2001)
Optimal harvest of age-structured populations of moose Alces alces in a fluctuating environment.
Wildlife Biology
Academic article
-
Diserud, Ola Håvard;
Engen, Steinar.
(2000)
A General and Dynamic Species Abundance Model, Embracing the Lognormal and the Gamma Models.
The American Naturalist
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(2000)
Predicting the time to quasi-extinction for populations far below their carrying capacity.
Journal of Theoretical Biology
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell;
Arcese, Peter;
Smith, James N.M..
(2000)
Estimating the time to extinction in an island population of song sparrows.
Proceedings of the Royal Society of Edinburgh Section B
Academic article
-
Ødegaard, Frode;
Diserud, Ola Håvard;
Engen, Steinar;
Aagaard, Kaare Hilmar.
(2000)
The Magnitude of Local Host Specificity for Phytophagous Insects and its Implications for Estimates of Global Species Richness.
Conservation Biology
Academic article
-
Tufto, Jarle;
Sæther, Bernt-Erik;
Engen, Steinar;
Arcese, Peter;
Jerstad, Kurt;
Røstad, Ole Wiggo.
(2000)
Bayesian meta-analysis of demographic parameters in three small, temperate passerines.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Tufto, Jarle;
Engen, Steinar;
Jerstad, Kurt;
Røstad, Ole Wiggo;
Skåtan, Jon Erling.
(2000)
Population dynamical consequences of climate change for a small temperate songbird.
Science
Academic article
-
Lillegård, Magnar;
Engen, Steinar.
(1999)
Exact confidence intervals generated by conditional parametric bootstrapping.
Journal of Applied Statistics
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(1999)
Spatial scale of population synchrony : environmental correlation versus dispersal and density regulation.
The American Naturalist
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Lande, Russell.
(1999)
Finite metapopulation models with density-dependent migration and stochastic local dynamics.
Proceedings of the Royal Society of Edinburgh Section B
Academic article
-
Tufto, Jarle;
Sæther, Bernt-Erik;
Engen, Steinar;
Swenson, Jon E.;
Sandegren, Finn.
(1999)
Harvesting strategies for conserving minimum viable populations based on World Conservation Union criteria: brown bears in Norway.
Proceedings of the Royal Society of London. Biological Sciences
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Bakke, Øyvind;
Swenson, Jon E.;
Sandegren, Finn.
(1998)
Assessing the viability of Scandinavian brown bear, Ursus arctos, populations: the effects of uncertain parameter estimates.
Oikos
Academic article
-
Tufto, Jarle;
Engen, Steinar;
Raybould, Alan F.;
Hindar, Kjetil.
(1998)
Analysis of Genetic Structure and Dispersal Patterns in a Population of Sea Beet.
Genetics
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Stochastic population models: Some concepts, definitions and results.
Oikos
Academic article
-
Engen, Steinar;
Bakke, Øyvind;
Islam, Aminul.
(1998)
Demographic and environmental stochasticity - concepts and definitions.
Biometrics
Academic article
-
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Stochastic population models : some concepts, definitions and results.
Oikos
Academic article
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(1998)
Extinction times in finite metapopulation models with stochastic local dynamics.
Oikos
Academic article
-
Sæther, Bernt-Erik;
Engen, Steinar;
Islam, Aminul;
McCleery, Robin;
Perrins, Christopher.
(1998)
Environmental stochasticity and extinction risk in a population of a small songbird, the great tit.
The American Naturalist
Academic article
-
Engen, Steinar;
Lillegård, Magnar.
(1997)
Stochastic simulations conditioned on sufficient statistics.
Biometrika
Academic article
-
Engen, Steinar;
Lande, Russell;
Sæther, Bernt-Erik.
(1997)
Harvesting strategies for fluctuating populations based on uncertain population estimates.
Journal of Theoretical Biology
Academic article
-
Lande, Russell;
Sæther, Bernt-Erik;
Engen, Steinar.
(1997)
Threshold harvesting for sustainability of fluctuating resources.
Ecology
Academic article
-
Tufto, Jarle;
Engen, Steinar;
Hindar, Kjetil.
(1997)
Stochastic dispersal processes in plant populations.
Theoretical Population Biology
Academic article
-
Tufto, Jarle;
Engen, Steinar;
Hindar, Kjetil.
(1996)
Inferring patterns of migration from gene frequencies under equilibrium conditions.
Genetics
Academic article
Books
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2003)
Stochastic population dynamics in ecology and conservation.
Oxford University Press
Oxford University Press
Non-fiction book
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Including uncertainties in population viability analysis using Population Prediction Intervals.
Population Viability Analysis
Textbook
-
Sæther, Bernt-Erik;
Engen, Steinar.
(1997)
Forvaltning av små bestander : en teoretisk bakgrunn.
Norsk institutt for naturforskning
Non-fiction book
Part of book/report
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2021)
Reproductive value and analyses of population dynamics of age-structured populations .
Oxford University Press
Academic chapter/article/Conference paper
-
Bartzke, Gundula;
May, Roelof Frans;
Stokke, Sigbjørn;
Røskaft, Eivin;
Engen, Steinar.
(2014)
Comparative effects of power lines and roads on moose (Alces alces) habitat selection.
Chapter
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2010)
Population Analyses.
Oxford University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2010)
Population Consequences of Climate Change.
Oxford University Press
Academic chapter/article/Conference paper
-
Lande, Russell;
Engen, Steinar;
Sæther, Bernt-Erik.
(2003)
Wildlife Population Growth R.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Macroecology.
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Wildlife Population Growth Rates.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
Pattern of variation in avian population growth rates.
Cambridge University Press
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2003)
The routes to extinction.
Academic chapter/article/Conference paper
-
Sæther, Bernt-Erik;
Engen, Steinar.
(2002)
Including stochasticity in population viability analysis.
Academic chapter/article/Conference paper
-
Lande, Russell;
Sæther, Bernt-Erik;
Engen, Steinar.
(2001)
Sustainable exploitation of fluctuation populations.
Cambridge University Press
Academic chapter/article/Conference paper
Report
-
Solbu, Erik Blystad;
Engen, Steinar;
Diserud, Ola Håvard;
Sæther, Bernt-Erik.
(2015)
Modelling and statistical analysis of demographic and environmental changes in populations and communities.
NTNU
Doctoral dissertation
-
Bjørkvoll, Eirin Marie;
Aanes, Sondre;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Engen, Steinar;
Aanes, Ronny.
(2011)
Beaked redfish and golden redfish: Estimating abundances at age and population dynamical parameters by fitting a stochastic population model to abundance data within a Bayesian framework.
ICES Arctic Fisheries Working Group
Report
-
Sæther, Bernt-Erik;
Engen, Steinar;
Persson, J.;
Brøseth, Henrik;
Landa, Arild;
Willebrand, T..
(2003)
Levedyktighetsanalyser av skandinavisk jerv.
NINA Fagrapport
Report
-
Sæther, Bernt-Erik;
Tufto, Jarle;
Engen, Steinar;
Jerstad, Kurt;
Røstad, Ole Wiggo;
Skåtan, Jon Erling.
(1999)
Populasjonsdynamikken til fossekall-bestanden i Lygnavassdraget.
Utredning for DN (3)
Report
-
Sæther, Bernt-Erik;
Engen, Steinar;
Swenson, Jon;
Bakke, Øyvind;
Sandegren, Finn.
(1997)
Levedyktighetsanalyser av skandinavisk brunbjørn.
NINA fagrapport (25)
Report
PRODUKT
-
Kvalnes, Thomas;
Engen, Steinar;
Sæther, Bernt-Erik;
Jensen, Henrik.
(2012)
Package 'lmf': Functions for estimation and inference of selection in age-structured populations.
Software
Knowledge Transfer
2024
-
Academic lectureLee, Aline Magdalena; Martin, Ellen Claire; Bjørkås, Ragnhild; Marquez, Jonatan Fredricson; Herfindal, Ivar; Hansen, Brage Bremset. (2024) Does life history influence population synchrony?. ISEC & Swansea University International Statistical Ecology Conference 2024 , Swansea 2024-07-15 - 2024-07-19
2020
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Academic lectureHerfindal, Ivar; Lee, Aline Magdalena; Myhre, Ane Marlene; Markussen, Stine Svalheim; Engen, Steinar; Solberg, Erling Johan. (2020) Decomposing demographic contribution to the effective population size. Evolutionary Demography Society 7th Evolutionary Demography Society annual meeting , Røros 2020-10-07 - 2020-10-10
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Academic lecturePeeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M. (2020) Harvesting can increase population viability by modifying climate change effects. The fourth conference of the Nordic Society Oikos 2020-03-03 - 2020-03-05
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Academic lecturePeeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M. (2020) Climate-density interactions and the stabilizing effects of harvesting on population dynamics. Evolutionary Demography Society’s 7th Annual Meeting 2020-10-06 - 2020-10-11
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Academic lectureFredricson Marquez, Jonatan; Lee, Aline Magdalena; Engen, Steinar; Aanes, Sondre; Salthaug, Are; Sæther, Bernt-Erik. (2020) Age-structure and spatial autocorrelation in marine fish populations. Bristish Ecological Society Festival of ecology , Online 2020-12-14 - 2020-12-18
2019
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Academic lectureLee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2019) Spatial covariation of competing species in a fluctuating environment. Norsk Økologisk Forening NØF conference 2019 , UiT Tromsø 2019-02-11 - 2019-02-12
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Academic lectureHansen, Brage Bremset; Peeters, Bart; Gamelon, Marlène; Lee, Aline Magdalena; Veiberg, Vebjørn; Albon, Steve D.. (2019) Reduced extinction risk by worsening climate and increased harvest: the role of density dependence . Arctic Ungulate Conference , Jokkmokk 2019-08-12 - 2019-08-16
2018
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PosterMyhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2018) Effective population size of density-dependent populations. Centre for Biodiversity Dynamics Oikos 2018 , Trondheim 2018-02-19 - 2018-02-22
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Academic lectureBellier, Edwige; Sæther, Bernt-Erik; Engen, Steinar. (2018) Sustainable harvest strategies of predators and preys in a fluctuating environment. Ecological Society of American Annual Meeting 2018 , New Orleans 2018-08-05 - 2018-08-10
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Academic lectureLee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2018) Spatial covariation of competing species in a fluctuating environment. ISEC 2018 - 6th Biennial International Statistical Ecology Conference , St. Andrews, Skottland 2018-07-02 - 2018-07-06
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PosterFredricson Marquez, Jonatan; Lee, Aline Magdalena; Aanes, Sondre; Engen, Steinar; Sæther, Bernt-Erik. (2018) Covariation between life-history traits and spatial scaling in marine fish populations. Nordic society OIKOS OIKOS 2018 , Trondheim 2018-02-19 - 2018-02-22
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Academic lectureLee, Aline Magdalena; Sæther, Bernt-Erik; Markussen, Stine Svalheim; Engen, Steinar. (2018) Do autocorrelations in individual reproductive success affect estimates of extinction risk?. Nordic Society Oikos OIKOS 2018 , Trondheim 2018-02-20 - 2018-02-22
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Academic lectureDiserud, Ola Håvard; Solbu, Erik Blystad; Kålås, John Atle; Engen, Steinar. (2018) How can heterogeneity among species affect community dynamics - Norwegian bird communities as a case study. Nordic Society Oikos Oikos 2018 , Trondheim 2018-02-19 - 2018-02-22
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Academic lectureVindenes, Yngvild; Engen, Steinar. (2018) A simple formula for the complex effects of individual heterogeneity . Annual meeting Evolutionary Demography Society (EvoDemos) 2018 , Lyon 2018-01-08 - 2018-01-10
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Academic lectureVindenes, Yngvild; Engen, Steinar. (2018) A simple formula for the complex effects of individual heterogeneity on stochastic population dynamics: the role of temporal autocorrelation. 2018 Nordic Oikos meeting , Trondheim 2018-02-20 - 2018-02-22
2017
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PosterKvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine . The 2017 Congress of the European Society for Evolutionary Biology 2017-08-20 - 2017-08-25
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Academic lectureKvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine bird. Hole-Nesting Bird Conference 2017 2017-10-30 - 2017-11-02
2015
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Academic lectureKvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Engen, Steinar; Sæther, Bernt-Erik. (2015) Is there an optimal body size? Lessons from an artificial selection experiment. Centre for Biodiversity Dynamics (CBD) Annual Conference of the Centre for Biodiversity Dynamics (CBD) , Trondheim 2015-01-21 - 2015-01-21
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PosterKvalnes, Thomas; Sæther, Bernt-Erik; Haanes, Hallvard; Røed, Knut; Engen, Steinar; Solberg, Erling Johan. (2015) Harvest-induced phenotypic selection in an island moose Alces alces population. European Society for Evolutionary Biology Congress of the European Society for Evolutionary Biology (ESEB) 2015 , University of Lausanne 2015-08-10 - 2015-08-14
2014
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Academic lectureKvalnes, Thomas; Engen, Steinar; Sæther, Bernt-Erik. (2014) Estimating phenotypic selection in age-structured populations. Society for the Study of Evolution, SSB and ASN Evolution 2014 , Raleigh 2014-06-20 - 2014-06-24
2013
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Academic lectureKvalnes, Thomas; Sæther, Bernt-Erik; Engen, Steinar; Jensen, Henrik; Haanes, Hallvard; Solberg, Erling Johan. (2013) Natural selection in age-structured populations. Senter for biodiversitetsdynamikk, Institutt for Biologi Centre for Biodiversity Dynamics (CBD) Opening Conference , NTNU, Trondheim 2013-10-14 - 2013-10-16
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Academic lectureKvalnes, Thomas; Engen, Steinar; Sæther, Bernt-Erik; Jensen, Henrik. (2013) Estimating fluctuating selection in age-structured populations. University of Lisbon XIV Congress of the European Society for Evolutionary Biology , Lisboa 2013-08-19 - 2013-08-24
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Academic lectureVan de Pol, Martijn; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, Bruno J; Oosterbeek, Kees. (2013) Effects of climate change on stochastic demography in a population of Eurasian Oystercatchers. British Ornithologists' Union British Ornithologists' Union annual conference 2013 , Leicester 2013-03-26 - 2013-03-28
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Academic lectureBjørkvoll, Eirin Marie; Lee, Aline Magdalena; Hansen, Brage Bremset; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar. (2013) Svalbard Reindeer. Integrated population modeling. Swiss Ornithological Institute Bayesian population analysis using WinBUGS , Sempach 2013-08-12 - 2013-08-16
2012
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Academic lectureJensen, Henrik; Hagen, Ingerid Julie; Kvalnes, Thomas; Billing, Anna Maria; Steinsland, Ingelin; Engen, Steinar. (2012) "Experimental evolution" and high-density SNP-genotyping in house sparrows. Molecular Ecology and Evolution Lab, Lund University Seminar at Molecular Ecology and Evolution Lab, Lund University , Lund 2012-03-01 - 2012-03-01
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Academic lectureHindar, Kjetil; Karlsson, Sten; Diserud, Ola Håvard; Engen, Steinar; Glover, Kevin; Skaala, Øystein. (2012) Knowledge Platform - Quantifying Genetic Effects of Escaped Farmed Salmon on Wild Salmon (QuantEscape). Int’l Coop. to Sequence the Atlantic Salmon Genome (ICSASG) 1st International Conference on Integrative Salmonid Biology , Oslo 2012-06-17 - 2012-06-20
2011
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Academic lectureGrøtan, Vidar; Engen, Steinar. (2011) Inference for spatial processes based on areal unit data. British Ecological Society BES Annual Meeting , Sheffield 2011-09-12 - 2011-09-14
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Academic lectureVindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2011) Stochastic integral projection models for finite populations: Key population parameters and consequences for extinction risk. Ecological Society of America 96th annual meeting of the Ecological Society of America , Austin, Texas 2011-08-07 - 2011-08-12
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PosterVindenes, Yngvild; Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2011) Fixation of slightly beneficial alleles in finite-sized structured populations: Effects of life history. European Society for Evolutionary Biology 13th Congress of the European Society for Evolutionary Biology , Tübingen 2011-08-20 - 2011-08-25
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Academic lectureSandvik, Hanno; Sæther, Bernt-Erik; Holmern, Tomas; Tufto, Jarle; Engen, Steinar. (2011) Quantifying risks and effects: the Norwegian classification system for alien species. XIth International Conference on the Ecology and Management of Alien Plant Invasions , Szombathely 2011-08-30 - 2011-09-03
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Academic lectureBjørkvoll, Eirin Marie; Aanes, Sondre; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Assessment of beaked redfish: Fitting a stochastic population model within a Bayesian framework. Institute of Marine Research Assessment forum , Bergen 2011-11-08 - 2011-11-08
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Academic lectureBjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Stochastic population dynamics of beaked redfish (Sebastes mentella). Institutt for Biologi, NTNU PhD conference , Trondheim 2011-11-10 - 2011-11-10
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Academic lectureBjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Stochastic population dynamics of beaked redfish (Sebastes mentella). International Council for Exploration of the Sea ICES Annual Science Conference , Gdansk 2011-09-19 - 2011-09-23
2010
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Academic lectureGrøtan, Vidar; Engen, Steinar; Sæther, Bernt-Erik. (2010) A parametric approach for estimating the similarity of communities. Centre for Conservation Biology Sustainable Conservation: Bridging the gap between disciplines , Trondheim 2010-03-15 - 2010-03-18
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Academic lectureHolmern, Tomas; Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar. (2010) Forslag til et kvantitativt klassifiseringssystem for risikovurdering av fremmede arter: Et kort sammendrag for DN møte 21 januar 2010. Direktoratet for Naturforvaltning Prosjektgruppen fremmede organimser under Nasjonalt program for kartlegging og overvåkning av biologisk mangfold - Prioriteringer for 2010 og videre fremover , Trondheim 2010-01-21 - 2010-01-21
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Academic lectureHolmern, Tomas; Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar. (2010) Stokastisk modellering - ny svarteliste. Skog og landskap Spredning av introduserte trær, skoglevende insekter og patogen sopp i tid og rom: case studier, effekter og metoder , Bergen 2010-02-18 - 2010-02-18
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LectureNybø, Signe; Certain, Gregoire; Skarpaas, Olav; Bjerke, Jarle W.; Framstad, Erik; Lindholm, Markus. (2010) The Nature Index: A new method to integrate expert knowledge and data on species to measure state and trends of ecosystems and across ecosystems. Convention on Biological Diversity, Conference of the Parties, COP10 , Nagoya 2010-10-18 - 2010-10-29
2009
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Academic lectureVindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2009) Effects of demographic heterogeneity in life histories on estimation of extinction risk. Ecological society of Australia / New Zealand ecological s. INTECOL 2009 -Ecology in a Changing Climate , Brisbane 2009-08-16 - 2009-08-21
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Academic lectureLee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2009) Mating System and Sex Ratio Affect Extinction Risk in a Stochastic Model. INTECOL The 10th International Congress of Ecology , Brisbane 2009-08-16 - 2009-08-21
2008
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Academic lectureVindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2008) Individual heterogeneity in vital parameters and population viability. Ecological Society of America ESA Annual Meeting , Milwaukee, Wisconsin 2008-08-03 - 2009-08-08
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Academic lectureLee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2008) Effects of mating system and sex ratio on population dynamics. The Ecological Society of America The Ecological Society of America 93rd Annual Meeting , Milwaukee 2008-08-03 - 2008-08-08
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Academic lectureGrøtan, Vidar; Sæther, Bernt-Erik; Lillegård, Magnar; Engen, Steinar. (2008) Predicting the distribution of future population fluctuations. Ecological Society of America Ecological Society of America Annual Meeting , Milwaukee 2008-08-02 - 2008-08-08
2007
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PosterLee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2007) Understanding Mating Systems: A Mathematical Model of the Pair Formation Process. European Society for Evolutionary Biology 11th Congress of the European Society for Evolutionary Biology , Uppsala 2007-08-20 - 2007-08-25
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PosterVindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2007) Effective size of fluctuating heterogeneous populations. The European Society for Evolutionary Biology ESEB congress 2007 , Uppsala 2007-08-20 - 2007-08-25
2005
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PosterGrøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Solberg, Erling Johan; Linnell, John D. C.; Andersen, Reidar. (2005) Climate causes large scale spatial synchrony in population fluctuations of a temperate herbivore. The Ecological Society of America The Ecological Society of America Annual Meeting , Montreal 2005-08-08 - 2005-08-12
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Academic lectureEngen, Steinar. (2005) Genetic drift in age-structured populations. Biologisk institutt, UiO Ukentlige seminarer , Oslo 2005-06-03 - 2005-06-03
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Academic lectureEngen, Steinar. (2005) Stochastic population models in ecology and conservarion. BIOECON BIOECON Conferance , Kings College, Cambridge 2005-09-19 - 2005-09-21
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Academic lectureEngen, Steinar. (2005) Stochastic population dynamics in ecology and conservation. Biometric Society Nordic Biometric Conference , Oslo 2005-06-03 - 2005-06-04
2004
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Academic lectureEngen, Steinar. (2004) Predictions in age-structured populations in a fluctuating environment. ESA Ecological Society of America, 2004 annual meeting , Portland, Oregon 2004-08-01 - 2004-08-06
2002
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Programme participationRingsby, Thor Harald; Jensen, Henrik; Sæther, Bernt-Erik; Engen, Steinar. (2002) Med spurven som modell. NRK, Schrødingers katt NRK, Schrødingers katt [TV] 2002-09-12
1999
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Academic lectureEngen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (1999) Sustainable exploitation of fluctuating populations. Concervation of expoited species. , London, England, 9.-12. desember
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Academic lectureEngen, Steinar; Sæther, Bernt-Erik. (1999) Estimating risk of extinction in small passerines. Population viability analysis , San Diego, 13.-16. mars