Vidar Grøtan
Om
Jeg er leder for forskningsområdet Community Dynamics ved Centre for Biodiversity Dynamics (CBD). CBD er et Senter for Fremragende Forskning (SFF). Jeg er en del av fagruppen i Økologi ved Institutt for Biologi.
Undervisning:
Publikasjoner
2024
-
Eriksen, Lasse Frost;
Nilsen, Erlend Birkeland;
Ringsby, Thor Harald;
Moa, Pål Fossland;
Grøtan, Vidar.
(2024)
Life history traits and demography of a mountain bird under climatic variation.
Doktoravhandlinger ved NTNU (2024:90)
Doktorgradsavhandling
-
Sandal, Lisa;
Sæther, Bernt-Erik;
Freckleton, Robert P.;
Noble, David G.;
Schwarz, Johannes;
Leivits, Agu.
(2024)
Species richness and evenness of European bird communities show differentiated responses to measures of productivity.
Journal of Animal Ecology
Vitenskapelig artikkel
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Bartra Cabre, Laura;
Hansen, Brage Bremset;
Lee, Aline Magdalena;
Layton-Matthews, Kate;
Loonen, Maarten J. J. E.;
Fuglei, Eva.
(2024)
The role of indirect interspecific effects in the stochastic dynamics of a simple trophic system.
Journal of Animal Ecology
Vitenskapelig artikkel
2023
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Sandal, Lisa;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Ovaskainen, Otso Tapio.
(2023)
Spatiotemporal dynamics of avian communitites.
NTNU
Doktorgradsavhandling
-
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
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J. J. E.;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2023)
Extreme events, trophic chain reactions, and shifts in phenotypic selection.
Scientific Reports
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J J E;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2023)
Erratum: Author Correction: Extreme events, trophic chain reactions, and shifts in phenotypic selection (Scientific reports (2023) 13 1 (15181)).
Scientific Reports
Errata
2022
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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
Vitenskapelig artikkel
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Vriend, Stefan J.G.;
Grøtan, Vidar;
Gamelon, Marlène;
Adriaensen, Frank;
Ahola, Markus P.;
Álvarez, Elena.
(2022)
Temperature synchronizes temporal variation in laying dates across European hole-nesting passerines.
Ecology
Vitenskapelig artikkel
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Koch, Wouter;
Finstad, Anders Gravbrøt;
Nilsen, Erlend Birkeland;
Grøtan, Vidar;
O'Hara, Robert B..
(2022)
Improving the citizen science data corpus for science and management.
NTNU
Doktorgradsavhandling
-
Karlsen, Simen;
Hansen, Brage Bremset;
Lee, Aline Magdalena;
Martin, Ellen Claire;
Grøtan, Vidar.
(2022)
No evidence of overall changes in spatial population synchrony across bird species in North America.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Sandal, Lisa;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Freckleton, Robert P.;
Noble, David G.;
Ovaskainen, Otso.
(2022)
Effects of density, species interactions, and environmental stochasticity on the dynamics of British bird communities.
Ecology
Vitenskapelig artikkel
-
Lenz, Kay Banu;
Hansen, Brage Bremset;
Fossøy, Frode;
Stokke, Bård Gunnar;
Grøtan, Vidar;
Varpe, Øystein.
(2022)
The Role of the Arctic Fox in the Breeding Success of the Snow Bunting.
NTNU, Department of Biology
Mastergradsoppgave
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Frøyen, Yngve Karl;
Austrheim, Gunnar.
(2022)
Urbanisation and land-cover change affect functional, but not compositional turnover of bird communities.
Urban Ecosystems
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J.J.E.;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2022)
Extreme events, trophic chain reactions, and shifts in phenotypic selection.
Research Square
Vitenskapelig artikkel
-
Sætre, Mikael Andreas;
Layton-Matthews, Kate;
Peeters, Bart;
Lee, Aline Magdalena;
Grøtan, Vidar;
Hansen, Brage Bremset.
(2022)
Climate change influences reproduction in Arctic breeding geese through altered predator-prey interactions.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
2021
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Petersen, Tanja Kofod;
Austrheim, Gunnar;
Speed, James David Mervyn;
Grøtan, Vidar.
(2021)
Biodiversity dynamics in urban areas under changing land-uses.
Norwegian University of Science and Technology
Doktorgradsavhandling
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2021)
Competitors and ruderals go to town: plant community composition and function along an urbanisation gradient.
Nordic Journal of Botany (NJB)
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Austrheim, Gunnar;
Speed, James David Mervyn;
Grøtan, Vidar;
Frøyen, Yngve Karl.
(2021)
Hvilke arter skal vi bo sammen med i byen?.
Forskersonen.no
Kronikk
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Marjakangas, Emma-Liina;
Ovaskainen, Otso;
Abrego, Nerea;
Grøtan, Vidar;
de Oliveira, Alexandre A.;
Prado, Paulo I..
(2021)
Co-occurrences of tropical trees in eastern South America: disentangling abiotic and biotic forces.
Plant Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2021)
Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection.
Ecological Solutions and Evidence
Vitenskapelig artikkel
2020
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Fjelldal, Mari Aas;
Layton-Matthews, Kate;
Lee, Aline Magdalena;
Grøtan, Vidar;
Loonen, Maarten J.J.E.;
Hansen, Brage Bremset.
(2020)
High-Arctic family planning: earlier spring onset advances age at first reproduction in barnacle geese.
Biology Letters
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2020)
Urban aliens and threatened near-naturals: Land-cover affects the species richness of alien- and threatened species in an urban-rural setting.
Scientific Reports
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Grøtan, Vidar;
Herfindal, Ivar;
Lee, Aline Magdalena.
(2020)
The Moran effect revisited: spatial population synchrony under global warming.
Ecography
Vitenskapelig artikkel
-
Le Moullec, Mathilde;
Sandal, Lisa;
Grøtan, Vidar;
Buchwal, Agata;
Hansen, Brage Bremset.
(2020)
Climate synchronises shrub growth across a high‐arctic archipelago: contrasting implications of summer and winter warming.
Oikos
Vitenskapelig artikkel
-
Herfindal, Ivar;
Tveraa, Torkild;
Stien, Audun;
Solberg, Erling Johan;
Grøtan, Vidar.
(2020)
When does weather synchronise life history traits? Spatiotemporal patterns in juvenile body mass of two ungulates. .
Journal of Animal Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Naves, Rafaela Pereira;
Grøtan, Vidar;
Prado, Paolo Inacio;
Vidal, Edson;
Batista, Joao Luis Ferreira.
(2020)
Tropical forest management altered abundances of individual tree species but not diversity.
Forest Ecology and Management
Vitenskapelig artikkel
-
Matthews, Kate Layton;
Grøtan, Vidar;
Hansen, Brage Bremset;
Loonen, Maarten J.J.E.;
Fuglei, Eva;
Childs, Dylan Z..
(2020)
Environmental change reduces body condition, but not population growth, in a high arctic herbivore.
Ecology Letters
Vitenskapelig artikkel
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Hilmarsen, Kjerstin Bakken;
Grøtan, Vidar;
Hansen, Brage Bremset;
Stokke, Bård Gunnar;
Fossøy, Frode;
Varpe, Øystein.
(2020)
Body mass growth in nestlings of Svalbard snow buntings (Plectrophenax nivalis) in response to seasonal variation in arthropod biomass.
NTNU, Dept. of Biology
Mastergradsoppgave
-
Layton-Matthews, Kate;
Grøtan, Vidar;
Hansen, Brage Bremset;
Loonen, Maarten J.J.E..
(2020)
Demographic consequences of rapid climate change and density dependence in migratory Arctic geese.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
2019
-
Layton-Matthews, Kate;
Loonen, Maarten J.J.E.;
Hansen, Brage Bremset;
Coste, Christophe Francois Daniel;
Sæther, Bernt-Erik;
Grøtan, Vidar.
(2019)
Density‐dependent population dynamics of a high Arctic capital breeder, the barnacle goose.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Pedersen, Åshild Ønvik;
Peeters, Bart;
Le Moullec, Mathilde;
Albon, Steve D.;
Herfindal, Ivar.
(2019)
Spatial heterogeneity in climate change effects decouples the
long‐term dynamics of wild reindeer populations in the high
Arctic.
Global Change Biology
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Hansen, Brage Bremset;
Grøtan, Vidar;
Fuglei, Eva;
Loonen, Maarten J.J.E..
(2019)
Contrasting consequences of climate change for migratory geese: Predation, density dependence and carryover effects offset benefits of high‐arctic warming.
Global Change Biology
Vitenskapelig artikkel
-
Fjelldal, Mari Aas;
Hansen, Brage Bremset;
Grøtan, Vidar;
Layton-Matthews, Kate;
Loonen, Maarten J.J.E..
(2019)
Family planning in the high Arctic: earlier spring onset advances age at first successful reproduction in barnacle geese.
Norges teknisk-naturvitenskaplige universitet
Mastergradsoppgave
-
Hansen, Brage Bremset;
Gamelon, Marlène;
Albon, Steve D.;
Lee, Aline Magdalena;
Stien, Audun;
Irvine, Robert Justin.
(2019)
More frequent extreme climate events stabilize reindeer population dynamics.
Nature Communications
Vitenskapelig artikkel
-
Marjakangas, Emma-Liina;
Abrego, Nerea;
Grøtan, Vidar;
de Lima, Renato A.F.;
Bello, Caroline;
Bovendorp, Ricardo S.
(2019)
Fragmented tropical forests lose mutualistic plant–animal interactions.
Diversity and Distributions: A Journal of Conservation Biogeography
Vitenskapelig artikkel
-
Marjakangas, Emma-Liina;
Abrego, Nerea;
Ovaskainen, Otso;
Grøtan, Vidar.
(2019)
Understanding species interactions in the tropics: dynamics within and between trophic levels.
Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Biology
Doktorgradsavhandling
-
Valøen, Kristine;
Grøtan, Vidar;
Hansen, Brage Bremset;
Le Moullec, Mathilde;
Varpe, Øystein.
(2019)
Stochastic rain events increase NDVI through moss water content: a High-Arctic field experiment.
NTNU
Mastergradsoppgave
-
Lillehaug, Egil;
Grøtan, Vidar;
Hansen, Brage Bremset;
Fossøy, Frode;
Stokke, Bård Gunnar;
Sandercock, Brett.
(2019)
Environmental correlates of variation in a holistic analysis of annual offspring production in the high Arctic songbird snow bunting (Plectrophenax nivalis) on Spitsbergen.
NTNU, Dept. of Biology
Mastergradsoppgave
-
Israelsen, Markus Fjellstad;
Nilsen, Erlend Birkeland;
Grøtan, Vidar;
Bolstad, Geir Hysing.
(2019)
The effects of habitat size and distance to forest edge on the occupancy dynamics of rock ptarmigan (Lagopus muta) in Norway.
NTNU
Mastergradsoppgave
2017
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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
Vitenskapelig artikkel
-
Sandal, Lisa;
Grøtan, Vidar;
Le Moullec, Mathilde;
Hansen, Brage Bremset.
(2017)
Spatiotemporal patterns of plant growth in a warming high Arctic: insights from dendrochronology of Salix polaris.
NTNU
Mastergradsoppgave
-
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
Vitenskapelig artikkel
-
Hanne, Haraldsen;
Hansen, Brage Bremset;
Grøtan, Vidar;
Jonsdottir, Ingibjørg.
(2017)
Effects of experimental winter icing and summer warming on high Arctic tundra vascular plants: a comparison of growth forms.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Grotheim, Marta;
Hansen, Brage Bremset;
Jonsdottir, Ingibjørg;
Grøtan, Vidar;
Layton-Matthews, Kate.
(2017)
Effects of Experimental Icing and Summer Warming on the Polar Willow Salix polaris on Svalbard.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
2016
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
2015
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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
Vitenskapelig artikkel
2014
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Bjørkvoll, Eirin Marie;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Aanes, Ronny.
(2014)
Life-history variation and stochastic population dynamics in vertebrates.
Norwegian University of Science and Technology
Doktorgradsavhandling
-
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
Vitenskapelig artikkel
-
Grøtan, Vidar;
Lande, Russell;
Chacon, IA;
DeVries, PJ.
(2014)
Seasonal cycles of diversity and similarity in a Central American rainforest butterfly community.
Ecography
Vitenskapelig artikkel
2013
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Hansen, Brage Bremset;
Grøtan, Vidar;
Aanes, Ronny;
Sæther, Bernt-Erik;
Stien, Audun;
Fuglei, Eva.
(2013)
Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic.
Science
Vitenskapelig artikkel
-
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
Vitenskapelig oversiktsartikkel/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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Reed, TE;
Grøtan, Vidar;
Jenouvrier, S;
Sæther, Bernt-Erik;
Visser, ME.
(2013)
Population Growth in a Wild Bird Is Buffered Against Phenological Mismatch.
Science
Vitenskapelig artikkel
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Herfindal, Ivar;
Drever, Mark C.;
Høgda, Kjell Arild;
Podruzny, Kevin M.;
Nudds, Thomas D.;
Grøtan, Vidar.
(2012)
Landscape heterogeneity and the effect of environmental conditions on prairie wetlands.
Landscape Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
2011
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2011)
Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity.
Ecography
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Rapport
2010
-
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
Vitenskapelig artikkel
2009
-
Garel, Mathieu;
Solberg, Erling Johan;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Tufto, Jarle;
Heim, Morten.
(2009)
Age, size and spatio-temporal variation in ovulation patterns of a seasonal breeder, the Norwegian moose (Alces alces).
The American Naturalist
Vitenskapelig oversiktsartikkel/review
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
2008
-
Solberg, Erling Johan;
Garel, Mathieu;
Heim, Morten;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2008)
Lack of compensatory body growth in a high performance moose Alces alces population.
Oecologia
Vitenskapelig oversiktsartikkel/review
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Filli, Flurin;
Engen, Steinar.
(2008)
Effects of climate on population fluctuations of ibex.
Global Change Biology
Vitenskapelig artikkel
2007
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Heim, Morten;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Garel, Mathieu.
(2007)
Annual variation in maternal age and calving date generate cohort effects in moose (Alces alces) body mass.
Oecologia
Vitenskapelig artikkel
2006
-
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
Vitenskapelig artikkel
-
Grøtan, Vidar.
(2006)
Temporal and spatial effects of climate fluctuations on population dynamics of vertebrates.
NTNU, Institutt for biologi
Doktorgradsavhandling
-
Solberg, Erling Johan;
Rolandsen, Christer Moe;
Heim, Morten;
Grøtan, Vidar;
Garel, Mathieu;
Sæther, Bernt-Erik.
(2006)
Elgen i Norge sett med jegerøyne. En analyse av jaktmaterialet fra overvå-kingsprogrammet for elg og det samlede sett elg-materialet for perioden 1966-2004.
NINA rapport (125)
Rapport
2005
-
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
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Grøtan, Vidar;
Rolandsen, Christer M.;
Brøseth, Henrik;
Brainerd, Scott.
(2005)
Change-in-sex ratio as an estimator of population size for Norwegian moose Alces alces.
Wildlife Biology
Vitenskapelig artikkel
2003
-
Grøtan, Vidar.
(2003)
Large scale synchronization of moose (Alces alces) population dynamics through climate and harvest.
[Mangler utgivernavn]
Hovedfagsoppgave
2001
-
Solberg, Erling Johan;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Heim, Morten.
(2001)
Elgens framtidige bestandsstruktur: Velger vi skogens konge eller skogens hellige kyr.
Hjorteviltet
Populærvitenskapelig artikkel
Tidsskriftspublikasjoner
-
Sandal, Lisa;
Sæther, Bernt-Erik;
Freckleton, Robert P.;
Noble, David G.;
Schwarz, Johannes;
Leivits, Agu.
(2024)
Species richness and evenness of European bird communities show differentiated responses to measures of productivity.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Bartra Cabre, Laura;
Hansen, Brage Bremset;
Lee, Aline Magdalena;
Layton-Matthews, Kate;
Loonen, Maarten J. J. E.;
Fuglei, Eva.
(2024)
The role of indirect interspecific effects in the stochastic dynamics of a simple trophic system.
Journal of Animal Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J. J. E.;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2023)
Extreme events, trophic chain reactions, and shifts in phenotypic selection.
Scientific Reports
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J J E;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2023)
Erratum: Author Correction: Extreme events, trophic chain reactions, and shifts in phenotypic selection (Scientific reports (2023) 13 1 (15181)).
Scientific Reports
Errata
-
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
Vitenskapelig artikkel
-
Vriend, Stefan J.G.;
Grøtan, Vidar;
Gamelon, Marlène;
Adriaensen, Frank;
Ahola, Markus P.;
Álvarez, Elena.
(2022)
Temperature synchronizes temporal variation in laying dates across European hole-nesting passerines.
Ecology
Vitenskapelig artikkel
-
Sandal, Lisa;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Freckleton, Robert P.;
Noble, David G.;
Ovaskainen, Otso.
(2022)
Effects of density, species interactions, and environmental stochasticity on the dynamics of British bird communities.
Ecology
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Frøyen, Yngve Karl;
Austrheim, Gunnar.
(2022)
Urbanisation and land-cover change affect functional, but not compositional turnover of bird communities.
Urban Ecosystems
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Vriend, Stefan J.G.;
Grøtan, Vidar;
Loonen, Maarten J.J.E.;
Sæther, Bernt-Erik;
Fuglei, Eva.
(2022)
Extreme events, trophic chain reactions, and shifts in phenotypic selection.
Research Square
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2021)
Competitors and ruderals go to town: plant community composition and function along an urbanisation gradient.
Nordic Journal of Botany (NJB)
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Austrheim, Gunnar;
Speed, James David Mervyn;
Grøtan, Vidar;
Frøyen, Yngve Karl.
(2021)
Hvilke arter skal vi bo sammen med i byen?.
Forskersonen.no
Kronikk
-
Marjakangas, Emma-Liina;
Ovaskainen, Otso;
Abrego, Nerea;
Grøtan, Vidar;
de Oliveira, Alexandre A.;
Prado, Paulo I..
(2021)
Co-occurrences of tropical trees in eastern South America: disentangling abiotic and biotic forces.
Plant Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2021)
Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection.
Ecological Solutions and Evidence
Vitenskapelig artikkel
-
Fjelldal, Mari Aas;
Layton-Matthews, Kate;
Lee, Aline Magdalena;
Grøtan, Vidar;
Loonen, Maarten J.J.E.;
Hansen, Brage Bremset.
(2020)
High-Arctic family planning: earlier spring onset advances age at first reproduction in barnacle geese.
Biology Letters
Vitenskapelig artikkel
-
Petersen, Tanja Kofod;
Speed, James David Mervyn;
Grøtan, Vidar;
Austrheim, Gunnar.
(2020)
Urban aliens and threatened near-naturals: Land-cover affects the species richness of alien- and threatened species in an urban-rural setting.
Scientific Reports
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Grøtan, Vidar;
Herfindal, Ivar;
Lee, Aline Magdalena.
(2020)
The Moran effect revisited: spatial population synchrony under global warming.
Ecography
Vitenskapelig artikkel
-
Le Moullec, Mathilde;
Sandal, Lisa;
Grøtan, Vidar;
Buchwal, Agata;
Hansen, Brage Bremset.
(2020)
Climate synchronises shrub growth across a high‐arctic archipelago: contrasting implications of summer and winter warming.
Oikos
Vitenskapelig artikkel
-
Herfindal, Ivar;
Tveraa, Torkild;
Stien, Audun;
Solberg, Erling Johan;
Grøtan, Vidar.
(2020)
When does weather synchronise life history traits? Spatiotemporal patterns in juvenile body mass of two ungulates. .
Journal of Animal Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Naves, Rafaela Pereira;
Grøtan, Vidar;
Prado, Paolo Inacio;
Vidal, Edson;
Batista, Joao Luis Ferreira.
(2020)
Tropical forest management altered abundances of individual tree species but not diversity.
Forest Ecology and Management
Vitenskapelig artikkel
-
Matthews, Kate Layton;
Grøtan, Vidar;
Hansen, Brage Bremset;
Loonen, Maarten J.J.E.;
Fuglei, Eva;
Childs, Dylan Z..
(2020)
Environmental change reduces body condition, but not population growth, in a high arctic herbivore.
Ecology Letters
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Loonen, Maarten J.J.E.;
Hansen, Brage Bremset;
Coste, Christophe Francois Daniel;
Sæther, Bernt-Erik;
Grøtan, Vidar.
(2019)
Density‐dependent population dynamics of a high Arctic capital breeder, the barnacle goose.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Pedersen, Åshild Ønvik;
Peeters, Bart;
Le Moullec, Mathilde;
Albon, Steve D.;
Herfindal, Ivar.
(2019)
Spatial heterogeneity in climate change effects decouples the
long‐term dynamics of wild reindeer populations in the high
Arctic.
Global Change Biology
Vitenskapelig artikkel
-
Layton-Matthews, Kate;
Hansen, Brage Bremset;
Grøtan, Vidar;
Fuglei, Eva;
Loonen, Maarten J.J.E..
(2019)
Contrasting consequences of climate change for migratory geese: Predation, density dependence and carryover effects offset benefits of high‐arctic warming.
Global Change Biology
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Gamelon, Marlène;
Albon, Steve D.;
Lee, Aline Magdalena;
Stien, Audun;
Irvine, Robert Justin.
(2019)
More frequent extreme climate events stabilize reindeer population dynamics.
Nature Communications
Vitenskapelig artikkel
-
Marjakangas, Emma-Liina;
Abrego, Nerea;
Grøtan, Vidar;
de Lima, Renato A.F.;
Bello, Caroline;
Bovendorp, Ricardo S.
(2019)
Fragmented tropical forests lose mutualistic plant–animal interactions.
Diversity and Distributions: A Journal of Conservation Biogeography
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Grøtan, Vidar;
Lande, Russell;
Chacon, IA;
DeVries, PJ.
(2014)
Seasonal cycles of diversity and similarity in a Central American rainforest butterfly community.
Ecography
Vitenskapelig artikkel
-
Hansen, Brage Bremset;
Grøtan, Vidar;
Aanes, Ronny;
Sæther, Bernt-Erik;
Stien, Audun;
Fuglei, Eva.
(2013)
Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic.
Science
Vitenskapelig artikkel
-
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
Vitenskapelig oversiktsartikkel/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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Reed, TE;
Grøtan, Vidar;
Jenouvrier, S;
Sæther, Bernt-Erik;
Visser, ME.
(2013)
Population Growth in a Wild Bird Is Buffered Against Phenological Mismatch.
Science
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Herfindal, Ivar;
Drever, Mark C.;
Høgda, Kjell Arild;
Podruzny, Kevin M.;
Nudds, Thomas D.;
Grøtan, Vidar.
(2012)
Landscape heterogeneity and the effect of environmental conditions on prairie wetlands.
Landscape Ecology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Engen, Steinar;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2011)
Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity.
Ecography
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Garel, Mathieu;
Solberg, Erling Johan;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Tufto, Jarle;
Heim, Morten.
(2009)
Age, size and spatio-temporal variation in ovulation patterns of a seasonal breeder, the Norwegian moose (Alces alces).
The American Naturalist
Vitenskapelig oversiktsartikkel/review
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Garel, Mathieu;
Heim, Morten;
Grøtan, Vidar;
Sæther, Bernt-Erik.
(2008)
Lack of compensatory body growth in a high performance moose Alces alces population.
Oecologia
Vitenskapelig oversiktsartikkel/review
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Grøtan, Vidar;
Sæther, Bernt-Erik;
Filli, Flurin;
Engen, Steinar.
(2008)
Effects of climate on population fluctuations of ibex.
Global Change Biology
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Heim, Morten;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Garel, Mathieu.
(2007)
Annual variation in maternal age and calving date generate cohort effects in moose (Alces alces) body mass.
Oecologia
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
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
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Grøtan, Vidar;
Rolandsen, Christer M.;
Brøseth, Henrik;
Brainerd, Scott.
(2005)
Change-in-sex ratio as an estimator of population size for Norwegian moose Alces alces.
Wildlife Biology
Vitenskapelig artikkel
-
Solberg, Erling Johan;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Heim, Morten.
(2001)
Elgens framtidige bestandsstruktur: Velger vi skogens konge eller skogens hellige kyr.
Hjorteviltet
Populærvitenskapelig artikkel
Rapport
-
Eriksen, Lasse Frost;
Nilsen, Erlend Birkeland;
Ringsby, Thor Harald;
Moa, Pål Fossland;
Grøtan, Vidar.
(2024)
Life history traits and demography of a mountain bird under climatic variation.
Doktoravhandlinger ved NTNU (2024:90)
Doktorgradsavhandling
-
Sandal, Lisa;
Grøtan, Vidar;
Sæther, Bernt-Erik;
Ovaskainen, Otso Tapio.
(2023)
Spatiotemporal dynamics of avian communitites.
NTNU
Doktorgradsavhandling
-
Koch, Wouter;
Finstad, Anders Gravbrøt;
Nilsen, Erlend Birkeland;
Grøtan, Vidar;
O'Hara, Robert B..
(2022)
Improving the citizen science data corpus for science and management.
NTNU
Doktorgradsavhandling
-
Karlsen, Simen;
Hansen, Brage Bremset;
Lee, Aline Magdalena;
Martin, Ellen Claire;
Grøtan, Vidar.
(2022)
No evidence of overall changes in spatial population synchrony across bird species in North America.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Lenz, Kay Banu;
Hansen, Brage Bremset;
Fossøy, Frode;
Stokke, Bård Gunnar;
Grøtan, Vidar;
Varpe, Øystein.
(2022)
The Role of the Arctic Fox in the Breeding Success of the Snow Bunting.
NTNU, Department of Biology
Mastergradsoppgave
-
Sætre, Mikael Andreas;
Layton-Matthews, Kate;
Peeters, Bart;
Lee, Aline Magdalena;
Grøtan, Vidar;
Hansen, Brage Bremset.
(2022)
Climate change influences reproduction in Arctic breeding geese through altered predator-prey interactions.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Petersen, Tanja Kofod;
Austrheim, Gunnar;
Speed, James David Mervyn;
Grøtan, Vidar.
(2021)
Biodiversity dynamics in urban areas under changing land-uses.
Norwegian University of Science and Technology
Doktorgradsavhandling
-
Hilmarsen, Kjerstin Bakken;
Grøtan, Vidar;
Hansen, Brage Bremset;
Stokke, Bård Gunnar;
Fossøy, Frode;
Varpe, Øystein.
(2020)
Body mass growth in nestlings of Svalbard snow buntings (Plectrophenax nivalis) in response to seasonal variation in arthropod biomass.
NTNU, Dept. of Biology
Mastergradsoppgave
-
Layton-Matthews, Kate;
Grøtan, Vidar;
Hansen, Brage Bremset;
Loonen, Maarten J.J.E..
(2020)
Demographic consequences of rapid climate change and density dependence in migratory Arctic geese.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
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Fjelldal, Mari Aas;
Hansen, Brage Bremset;
Grøtan, Vidar;
Layton-Matthews, Kate;
Loonen, Maarten J.J.E..
(2019)
Family planning in the high Arctic: earlier spring onset advances age at first successful reproduction in barnacle geese.
Norges teknisk-naturvitenskaplige universitet
Mastergradsoppgave
-
Marjakangas, Emma-Liina;
Abrego, Nerea;
Ovaskainen, Otso;
Grøtan, Vidar.
(2019)
Understanding species interactions in the tropics: dynamics within and between trophic levels.
Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Biology
Doktorgradsavhandling
-
Valøen, Kristine;
Grøtan, Vidar;
Hansen, Brage Bremset;
Le Moullec, Mathilde;
Varpe, Øystein.
(2019)
Stochastic rain events increase NDVI through moss water content: a High-Arctic field experiment.
NTNU
Mastergradsoppgave
-
Lillehaug, Egil;
Grøtan, Vidar;
Hansen, Brage Bremset;
Fossøy, Frode;
Stokke, Bård Gunnar;
Sandercock, Brett.
(2019)
Environmental correlates of variation in a holistic analysis of annual offspring production in the high Arctic songbird snow bunting (Plectrophenax nivalis) on Spitsbergen.
NTNU, Dept. of Biology
Mastergradsoppgave
-
Israelsen, Markus Fjellstad;
Nilsen, Erlend Birkeland;
Grøtan, Vidar;
Bolstad, Geir Hysing.
(2019)
The effects of habitat size and distance to forest edge on the occupancy dynamics of rock ptarmigan (Lagopus muta) in Norway.
NTNU
Mastergradsoppgave
-
Sandal, Lisa;
Grøtan, Vidar;
Le Moullec, Mathilde;
Hansen, Brage Bremset.
(2017)
Spatiotemporal patterns of plant growth in a warming high Arctic: insights from dendrochronology of Salix polaris.
NTNU
Mastergradsoppgave
-
Hanne, Haraldsen;
Hansen, Brage Bremset;
Grøtan, Vidar;
Jonsdottir, Ingibjørg.
(2017)
Effects of experimental winter icing and summer warming on high Arctic tundra vascular plants: a comparison of growth forms.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Grotheim, Marta;
Hansen, Brage Bremset;
Jonsdottir, Ingibjørg;
Grøtan, Vidar;
Layton-Matthews, Kate.
(2017)
Effects of Experimental Icing and Summer Warming on the Polar Willow Salix polaris on Svalbard.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
-
Bjørkvoll, Eirin Marie;
Sæther, Bernt-Erik;
Grøtan, Vidar;
Aanes, Ronny.
(2014)
Life-history variation and stochastic population dynamics in vertebrates.
Norwegian University of Science and Technology
Doktorgradsavhandling
-
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
Rapport
-
Grøtan, Vidar.
(2006)
Temporal and spatial effects of climate fluctuations on population dynamics of vertebrates.
NTNU, Institutt for biologi
Doktorgradsavhandling
-
Solberg, Erling Johan;
Rolandsen, Christer Moe;
Heim, Morten;
Grøtan, Vidar;
Garel, Mathieu;
Sæther, Bernt-Erik.
(2006)
Elgen i Norge sett med jegerøyne. En analyse av jaktmaterialet fra overvå-kingsprogrammet for elg og det samlede sett elg-materialet for perioden 1966-2004.
NINA rapport (125)
Rapport
-
Grøtan, Vidar.
(2003)
Large scale synchronization of moose (Alces alces) population dynamics through climate and harvest.
[Mangler utgivernavn]
Hovedfagsoppgave
Undervisning
Emner
Formidling
2023
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Vitenskapelig foredragBartra Cabre, Laura; Hansen, Brage Bremset; Lee, Aline Magdalena; Grøtan, Vidar. (2023) Understanding community-dynamic impacts of extreme climatic events: a high-Arctic case study . Leibniz-IZW Academy Wildlife Research and Conservation 2023 , Berlin 2023-09-07 - 2023-09-11
2022
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Vitenskapelig foredragBartra Cabré, Laura; Lee, Aline Magdalena; Grøtan, Vidar; Hansen, Brage Bremset. (2022) Community dynamics under climatic perturbations. Centre for Biodiversity Dynamics, NTNU NTNU CBD, SAC meeting , Røros 2022-10-17 - 2022-10-20
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Vitenskapelig foredragBartra Cabré, Laura; Hansen, Brage Bremset; Lee, Aline Magdalena; Grøtan, Vidar. (2022) Impacts of more frequent extreme climatic events on community dynamics in the high Arctic. Aarhus University Oikos Nordic Conference 2022 , Aarhus 2022-06-06 - 2022-06-08
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Vitenskapelig foredragBartra Cabré, Laura; Hansen, Brage Bremset; Lee, Aline Magdalena; Grøtan, Vidar. (2022) Impacts of more frequent extreme climatic events on community dynamics in the high Arctic. Centre for Biodiversity Dynamics, NTNU NTNU CBD lunch seminars , Trondheim 2022-05-31 - 2022-05-31
2021
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PosterLe Moullec, Mathilde; Acker, Paul; Grøtan, Vidar; Lee, Aline Magdalena; Herfindal, Ivar; O'Hara, Bob. (2021) How can we assess temporal changes in population synchrony?. British Ecological Society Annual Meeting of the British Ecological Society , Liverpool, UK 2021-12-12 - 2021-12-15
2020
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Vitenskapelig foredragPeeters, 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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Vitenskapelig foredragPeeters, 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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Vitenskapelig foredragVriend, Stefan; Gamelon, Marlène; Grøtan, Vidar; Sæther, Bernt-Erik. (2020) Spatial variation in the critical age class of European bird populations. Nordic Society Oikos Nordic Oikos conference 2020 , Reykjavik 2020-03-03 - 2020-05-03
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Faglig foredragPetersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2020) Biodiversity dynamics in urban areas under changing land-use. British Ecological Society Festival of Ecology 2020-12-14 - 2020-12-18
2019
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PosterPetersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2019) Land cover determines threatened and alien species richness in a mixed urban-natural municipality. University of Aarhus, University of Copenhagen Biodiversitetssymposiet 2019 , University of Aarhus 2019-01-22 - 2019-01-23
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Vitenskapelig foredragVriend, Stefan; Grøtan, Vidar; Gamelon, Marlène; Sæther, Bernt-Erik. (2019) Spatial synchrony in hole-nesting passerine life history traits. British Ecological Society BES Annual Meeting 2019 , Belfast, Northern Ireland 2019-12-10 - 2019-12-13
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Vitenskapelig foredragLayton-Matthews, Kate; Childs, Dylan Z.; Grøtan, Vidar; Loonen, M. J. J. E; Fuglei, Eva; Hansen, Brage Bremset. (2019) Habitat degradation makes for skinny Arctic barnacle geese: drivers of body mass and population dynamics. British Ecological Society British Ecological Society Annual Conference 2020 , Belfast 2019-12-09 - 2019-12-13
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Vitenskapelig foredragHansen, 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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Vitenskapelig foredragLayton-Matthews, Kate; Loonen, Maarten J.J.E.; Hansen, Brage Bremset; Grøtan, Vidar. (2018) Density dependence & environmental drivers in a population of high Arctic barnacle geese . University of Lyon Evolutionary Demographic Society annual conference , Lyon 2018-01-08 - 2018-01-10
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PosterVriend, Stefan; Gamelon, Marlène; Bailey, Liam; Grøtan, Vidar; Sæther, Bernt-Erik. (2018) Spatiotemporal variation in hole-nesting passerine life history across Europe. British Ecological Society British Ecological Society 2018 Annual Meeting , Birmingham 2018-12-16 - 2018-12-19
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Vitenskapelig foredragSandal, Lisa; Le Moullec, Mathilde; Grøtan, Vidar; Hansen, Brage Bremset. (2018) Spatiotemporal patterns of plant growth in a rapidly warming high Arctic: a tale of change. NTNU Nordic OIKOS Conference , Trondheim 2018-02-20 - 2018-02-22
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PosterPetersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2018) Urban Biodiversity - a redlisted refuge or blacklisted gateway. Nordic OIKOS OIKOS 2018 , Claridon Hotel and Congress Center 2018-02-19 - 2018-02-22
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Vitenskapelig foredragHansen, Brage Bremset; Pedersen, Åshild Ønvik; Peeters, Bart; Le Moullec, Mathilde; Albon, Steve D.; Sæther, Bernt-Erik. (2018) Spatial heterogeneity buffers synchronizing effects of climate on high-arctic reindeer meta-population dynamics. British Ecological Society Annual Meeting of the British Ecological Society , Birmingham 2018-12-16 - 2018-12-19
2017
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Faglig foredragLe Moullec, Mathilde; Sandal, Lisa; Grøtan, Vidar; Buchwal, Agata; van der Wal, René; Hansen, Brage Bremset. (2017) Spatiotemporal patterns of shrub growth in a warming high Arctic: a tale of diminishing regional spatial synchrony. British Ecological Society Conference: Ecology Across Border , Gent 2017-12-11 - 2017-12-14
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PosterLayton-Matthews, Kate; Hansen, Brage Bremset; Loonen, Maarten J.J.E.; Grøtan, Vidar. (2017) Density, climate and trophic interaction effects on high arctic barnacle geese. British Ecological Society British Ecological Society Annual Conference , Ghent 2017-12-11 - 2017-12-15
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Vitenskapelig foredragHansen, Brage Bremset; Gamelon, Marlène; Albon, Steve D.; Stien, Audun; Irvine, Justin R; Sæther, Bernt-Erik. (2017) More frequent extreme climate events stabilize wild reindeer dynamics in the high Arctic . British Ecological Society British Ecological Society Annual Meeting , Ghent 2017-12-11 - 2017-12-14
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Vitenskapelig foredragLe Moullec, Mathilde; Sandal, Lisa; Grøtan, Vidar; Hansen, Brage Bremset. (2017) Spatiotemporal patterns of shrub growth in a warming high Arctic: a tale of diminishing regional spatial synchrony. UNIS Invitert gjesteforelesning , Longyearbyen 2017-11-15 -
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Vitenskapelig foredragLe Moullec, Mathilde; Sandal, Lisa; Grøtan, Vidar; Hansen, Brage Bremset. (2017) Spatiotemporal patterns of shrub growth in a warming high Arctic: a tale of diminishing regional spatial synchrony. UiT Invitert gjesteforelesning , Tromsø 2017-11-17 -
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Vitenskapelig foredragLe Moullec, Mathilde; Sandal, Lisa; Grøtan, Vidar; Hansen, Brage Bremset. (2017) Spatiotemporal patterns of shrub growth in a warming high Arctic: a tale of diminishing regional spatial synchrony. KU Leuven Invitert gjesteforelesning , Leuven 2017-12-08 -
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Vitenskapelig foredragLayton-Matthews, Kate; Loonen, Maarten J.J.E.; Hansen, Brage Bremset; Grøtan, Vidar. (2017) Density and environmental effects on barnacle goose population dynamics. Research Council Norway Svalbard Science Conference , Fornebu 2017-11-06 - 2017-11-08
2015
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Vitenskapelig foredragHansen, Brage Bremset; Grøtan, Vidar. (2015) Global declines of caribou and reindeer?. Arctic Ungulate Conference , Røros 2015-08-16 - 2015-08-21
2013
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Vitenskapelig foredragBjørkvoll, 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
2011
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Vitenskapelig foredragGrøtan, 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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Vitenskapelig foredragBjørkvoll, 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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Vitenskapelig foredragBjørkvoll, 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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Vitenskapelig foredragBjørkvoll, 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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Vitenskapelig foredragGrøtan, 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
2008
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Vitenskapelig foredragGrøtan, 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
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