Population dynamics of Norwegian red deer: density-dependence and climatic variation

Proceedings. Biological Sciences
M C ForchhammerR Langvatn

Abstract

We present a model on plant-deer climate interactions developed for improving our understanding of the temporal dynamics of deer abundance and, in particular, how intrinsic (density-dependent) and extrinsic (plants, climate) factors influence these dynamics. The model was tested statistically by analysing the dynamics of five Norwegian red deer populations between 1964 and 1993. Direct and delayed density-dependence significantly influenced the development of the populations: delayed density-dependence primarily operated through female density, whereas direct density-dependence acted through both female and male densities. Furthermore, population dynamics of Norwegian red deer were significantly affected by climate (as measured by the global weather phenomenon, the North Atlantic Oscillation: NAO). Warm, snowy winters (high NAO) were associated with decreased deer abundance, whereas the delayed (two-year) effect of warm, snowy winters had a positive effect on deer abundance. Our analyses are argued to have profound implications for the general understanding of climate change and terrestrial ecosystem functioning.

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Citations

Nov 15, 2002·Nature·Eric Post, Mads C Forchhammer
Jun 20, 2012·Proceedings of the National Academy of Sciences of the United States of America·Taal LeviChristopher C Wilmers
May 20, 2000·Proceedings. Biological Sciences·M C Forchhammer, T Asferg
Oct 29, 2000·Proceedings. Biological Sciences·E RantaJ Laakso
Jul 19, 2002·Proceedings. Biological Sciences·E PostT V Callaghan
Apr 6, 2002·Proceedings. Biological Sciences·Nathalie PettorelliDaniel Maillard
Oct 17, 2003·Proceedings. Biological Sciences·Christophe Barbraud, Henri Weimerskirch
Aug 19, 2010·Ecology·Stephen D GregoryFranck Courchamp
Apr 14, 1999·Proceedings of the National Academy of Sciences of the United States of America·E PostN C Stenseth
Aug 19, 2008·The American Naturalist·Niclas JonzénPer Lundberg
May 11, 2006·The American Naturalist·Russell LandeTim Coulson
Nov 4, 2015·The Journal of Animal Ecology·Guillaume Bastille-RousseauDennis L Murray
May 19, 2006·Ecological Applications : a Publication of the Ecological Society of America·N Thompson Hobbs, Ray Hilborn
Oct 1, 2010·The Journal of Animal Ecology·Anna L K NilssonNils C Stenseth
Dec 17, 2009·The Journal of Animal Ecology·Troy M HegelNils Chr Stenseth
Jun 19, 2013·Mathematical Biosciences·Erik Blystad SolbuOla Håvard Diserud
Apr 15, 2015·Zoology : Analysis of Complex Systems, ZACS·Luca CorlattiSimona Imperio
Jul 10, 2012·Veterinary Parasitology·Hannah B CrossFrank Rosell
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Sep 24, 2016·Oecologia·Andrey V TchabovskyIvan A Kshnyasev
Nov 10, 2013·Scientific Reports·Farshid S AhrestaniEric Post
Nov 19, 2013·Acta Theriologica·Tomasz BorowikBogumiła Jędrzejewska
Aug 28, 2001·Proceedings. Biological Sciences·V Kaitala, E Ranta

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