dc.contributor.author | Sæther, Bernt-Erik | |
dc.contributor.author | Grøtan, Vidar | |
dc.contributor.author | Engen, Steinar | |
dc.contributor.author | Coulson, Tim | |
dc.contributor.author | Grant, Peter R. | |
dc.contributor.author | Visser, Marcel E. | |
dc.contributor.author | Brommer, Jon E. | |
dc.contributor.author | Grant, B. Rosemary | |
dc.contributor.author | Gustafsson, Lars | |
dc.contributor.author | Hatchwell, Ben J. | |
dc.contributor.author | Jerstad, Kurt | |
dc.contributor.author | Karell, Patrik | |
dc.contributor.author | Pietiäinen, Hannu | |
dc.contributor.author | Roulin, Alexandre | |
dc.contributor.author | Røstad, Ole Wiggo | |
dc.contributor.author | Weimerskirch, Henri | |
dc.date.accessioned | 2016-09-02T13:16:24Z | |
dc.date.accessioned | 2016-09-05T13:48:34Z | |
dc.date.available | 2016-09-02T13:16:24Z | |
dc.date.available | 2016-09-05T13:48:34Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Nature Communications 2016, 7:12001 | nb_NO |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | http://hdl.handle.net/11250/2404369 | |
dc.description.abstract | There is large interspecific variation in the magnitude of population fluctuations, even among
closely related species. The factors generating this variation are not well understood,
primarily because of the challenges of separating the relative impact of variation in population
size from fluctuations in the environment. Here, we show using demographic data from
13 bird populations that magnitudes of fluctuations in population size are mainly driven by
stochastic fluctuations in the environment. Regulation towards an equilibrium population size
occurs through density-dependent mortality. At small population sizes, population dynamics
are primarily driven by environment-driven variation in recruitment, whereas close to the
carrying capacity K, variation in population growth is more strongly influenced by densitydependent
mortality of both juveniles and adults. Our results provide evidence for the
hypothesis proposed by Lack that population fluctuations in birds arise from temporal
variation in the difference between density-independent recruitment and density-dependent
mortality during the non-breeding season. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Nature Publishing Group | nb_NO |
dc.rights | Navngivelse 3.0 Norge | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/no/ | * |
dc.title | Demographic routes to variability and regulation in bird populations | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.date.updated | 2016-09-02T13:16:24Z | |
dc.source.journal | Nature Communications | nb_NO |
dc.identifier.doi | 10.1038/ncomms12001 | |
dc.identifier.cristin | 1375899 | |
dc.description.localcode | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ | nb_NO |