Research Topics
| B E SaetherSummaryAffiliation: Norwegian University of Science and Technology Country: Norway Publications
| Collaborators
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Detail Information
Publications
Population dynamical consequences of climate change for a small temperate songbirdB Saether
Department of Zoology, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Science 287:854-6. 2000....
Estimating the time to extinction in an island population of song sparrowsB E Saether
Department of Zoology, Norwegian University of Science and Technology, Trondheim
Proc Biol Sci 267:621-6. 2000..This study shows that ignoring uncertainties in population dynamics produces a substantial underestimation of the extinction risk...- Ecology. Weather ruins winter vacationsB E Saether
Zoological Institute, Norwegian University for Science and Technology, N 7491 Trondheim, Norway
Science 288:1975-6. 2000..that climate change resulting from the El Niño Southern Oscillation affects both the survival rate of adult birds at tropical wintering sites and their reproductive rate at summer breeding grounds in the Northern Hemisphere... - Demographic characteristics and population dynamical patterns of solitary birdsBernt Erik Saether
Department of Zoology, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Science 295:2070-3. 2002..These results suggest that patterns in avian population fluctuations can be predicted from a knowledge of life-history characteristics and/or temporal variation in certain demographic traits... - Pattern of variation in avian population growth ratesBernt Erik Saether
Department of Zoology, Norwegian University of Science and Technology, Realfagsbygget, N 7491 Trondheim, Norway
Philos Trans R Soc Lond B Biol Sci 357:1185-95. 2002..We illustrate that the concept of population prediction interval can be useful in evaluating the consequences of these uncertainties in the population projections for the choice of management actions... - Effective size of a fluctuating age-structured populationSteinar Engen
Department of Mathematical Sciences, Norwegian University of Science and Technology, Trondheim
Genetics 170:941-54. 2005..A formula for the effective population size over longer time intervals incorporates deterministic growth and environmental stochasticity to account for changes in N... - Annual variation in maternal age and calving date generate cohort effects in moose (Alces alces) body massErling J Solberg
Norwegian Institute for Nature Research, Tungasletta 2, 7485, Trondheim, Norway
Oecologia 154:259-71. 2007..g. body condition, calving date); and (b) populations living at low densities are partly buffered against temporal fluctuations in the environment... 
Estimating the ratio of effective to actual size of an age-structured population from individual demographic dataSteinar Engen
Department of Mathematical Sciences, Centre for Conservation Biology, Norwegian University of Science and Technology, Trondheim, Norway
J Evol Biol 23:1148-58. 2010..We also show how to incorporate uncertain paternity...- Predicting fluctuations of reintroduced ibex populations: the importance of density dependence, environmental stochasticity and uncertain population estimatesBernt Erik Saether
Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
J Anim Ecol 76:326-36. 2007..Credible population predictions require that this uncertainty is properly quantified... - Dispersal of introduced house sparrows Passer domesticus: an experimentSigrun Skjelseth
Department of Biology, Population Biology Centre, Norwegian University of Science and Technology, 7491 Trondheim, Norway
Proc Biol Sci 274:1763-71. 2007..These results suggest that the distribution and frequency of introduced individuals may be predicted by their sex ratio as well as their phenotypic characteristics... - Effective size of fluctuating populations with two sexes and overlapping generationsSteinar Engen
Population Biology Center, Department of Mathematical Sciences, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Evolution 61:1873-85. 2007..This ratio showed large interisland variation because of demographic differences among the populations. Finally, we calculate how N(e) in a growing house sparrow population will change over time... - Multilocus heterozygosity and inbreeding depression in an insular house sparrow metapopulationHenrik Jensen
Centre for Conservation Biology, Department of Biology, Realfagbygget, Norwegian University of Science and Technology, NO 7491 Trondheim, Norway
Mol Ecol 16:4066-78. 2007.... - Understanding mating systems: a mathematical model of the pair formation processAline Magdalena Lee
Centre for Conservation Biology, Department of Biology, Norwegian University of Science and Technology, Realfagsbygget, N 7491 Trondheim, Norway
Theor Popul Biol 73:112-24. 2008..This emphasizes the importance of using a model of this type to study mating systems, rather than relying solely on the variance in reproductive success as a descriptor of different systems... - Estimation of population parameters from aerial counts of North American mallards: a cautionary taleMagnar Lillegård
Centre for Conservation Biology, Department of Mathematical Sciences, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Ecol Appl 18:197-207. 2008..Our results underline the importance of reducing the magnitude of sampling error in the design of large-scale monitoring programs of population fluctuations... - Evolutionary dynamics of a sexual ornament in the house sparrow (Passer domesticus): the role of indirect selection within and between sexesHenrik Jensen
Centre for Conservation Biology, Department of Biology, Norwegian University of Science and Technology, NO 7491 Trondheim, Norway
Evolution 62:1275-93. 2008..Our analyses of evolutionary dynamics in sexual characters require application of appropriate two-sex models to account for how selection on correlated traits in both sexes affects the evolutionary outcome of sexual selection... - A general model for analyzing Taylor's spatial scaling lawsSteinar Engen
Centre for Conservation Biology, Department of Mathematical Sciences, Norwegian University for Science and Technology, N 7491 Trondheim, Norway
Ecology 89:2612-22. 2008..We also show how properties of population dynamics in space and time determine this relationship... - The extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populationsBernt Erik Saether
Department of Biology, Norwegian University of Science and Technology, NO 7491 Trondheim, Norway
J Anim Ecol 76:315-25. 2007.... - Demographic characteristics of extinction in a small, insular population of house sparrows in northern NorwayThor Harald Ringsby
Department of Biology, Norwegian University of Science and Technology, N 7491, Trondheim, Norway
Conserv Biol 20:1761-7. 2006..Our results strongly emphasize the importance of access to data on temporal variation that can be used to parameterize simple population models that allow estimation of critical parameters for credible prediction of time to extinction... - Using reproductive value to estimate key parameters in density-independent age-structured populationsSteinar Engen
Department of Mathematical Sciences, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
J Theor Biol 244:308-17. 2007..We illustrate the method by estimating the long-run growth rate and the environmental variance in an exponentially growing population of Bighorn Sheep... - Environmental phenology and geographical gradients in moose body massIvar Herfindal
Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
Oecologia 150:213-24. 2006.... - Causes and consequences of adaptive seasonal sex ratio variation in house sparrowsArild Husby
Department of Biology, Realfagbygget, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
J Anim Ecol 75:1128-39. 2006..Our results also suggest that such a sex ratio variation can strongly influence the demography and structural composition of small passerine populations... - Population characteristics predict responses in moose body mass to temporal variation in the environmentIvar Herfindal
Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
J Anim Ecol 75:1110-8. 2006.... - Climate and spatio-temporal variation in the population dynamics of a long distance migrant, the white storkBernt Erik Saether
Department of Biology, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
J Anim Ecol 75:80-90. 2006..6. Our results illustrate that evaluating the effects of common environmental variables on the spatio-temporal variation in population dynamics require estimates and modelling of their influence on the local dynamics... - Climate variation and regional gradients in population dynamics of two hole-nesting passerinesBernt Erik Saether
Department of Biology, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Proc Biol Sci 270:2397-404. 2003..In both species, the effects will be larger in those parts of Europe where large changes in climate are expected... - Generalizations of the Moran effect explaining spatial synchrony in population fluctuationsSteinar Engen
Department of Mathematical Sciences, Norwegian University for Science and Technology, N 7491, Trondheim, Norway
Am Nat 166:603-12. 2005..These analyses show exactly how spatial environmental covariation can synchronize fluctuations of spatially segregated populations with no interchange of individuals even if the dynamics are nonlinear... - Generation time and temporal scaling of bird population dynamicsBernt Erik Saether
Department of Biology, Norwegian University of Science and Technology, N 7491 Trondheim, Norway
Nature 436:99-102. 2005..These results indicate that the relationships between demographic and life-history traits in birds translate into distinct population dynamical patterns that are apparent only on a scale of generations... - Estimating fluctuating selection in age-structured populationsS Engen
Department of Mathematical Sciences, Centre for Conservation Biology, Norwegian University of Science and Technology, Trondheim, Norway
J Evol Biol 25:1487-99. 2012..The method is illustrated by an analysis of age-specific selection in house sparrows on a fitness-related two-dimensional morphological trait, tarsus length and body mass of fledglings... - Sexual variation in heritability and genetic correlations of morphological traits in house sparrow (Passer domesticus)H Jensen
Department of Biology, Realfagbygget, Norwegian University of Science and Technology, Trondheim, Norway
J Evol Biol 16:1296-307. 2003..Hence, our results suggest that sex-specific additive genetic variances and covariances, although ignored in most studies, should be included when making predictions of evolutionary changes from standard quantitative genetic models... - Senescence rates are determined by ranking on the fast-slow life-history continuumOwen R Jones
Division of Biology and Centre for Population Biology, Imperial College London, Silwood Park Campus, Ascot, Berks SL5 7PY, UK
Ecol Lett 11:664-73. 2008..Focusing on one aspect of life history - survival or recruitment - can provide reliable information on overall senescence... - The length of growing season and adult sex ratio affect sexual size dimorphism in mooseMathieu Garel
Laboratoire de Biométrie et Biologie Évolutive UMR 5558, Centre National de la Recherche Scientifique CNRS, Universite Lyon 1, 43 Boulevard du 11 Novembre, 69622, Villeurbanne, France
Ecology 87:745-58. 2006..Our results indicate that geographical variation in moose SSD is influenced by divergent responses in the sexes to ecological factors affecting body growth...