Population dynamics of Norwegian red deer: density-dependence and climatic variation.
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 ana...
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ftpubmed:oai:pubmedcentral.nih.gov:1688882 2023-05-15T17:32:44+02:00 Population dynamics of Norwegian red deer: density-dependence and climatic variation. Forchhammer, M C Stenseth, N C Post, E Langvatn, R 1998-02-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688882 http://www.ncbi.nlm.nih.gov/pubmed/9523435 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688882 http://www.ncbi.nlm.nih.gov/pubmed/9523435 Research Article Text 1998 ftpubmed 2013-08-31T12:27:47Z 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. Text North Atlantic North Atlantic oscillation PubMed Central (PMC) |
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Research Article Forchhammer, M C Stenseth, N C Post, E Langvatn, R Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
topic_facet |
Research Article |
description |
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. |
format |
Text |
author |
Forchhammer, M C Stenseth, N C Post, E Langvatn, R |
author_facet |
Forchhammer, M C Stenseth, N C Post, E Langvatn, R |
author_sort |
Forchhammer, M C |
title |
Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
title_short |
Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
title_full |
Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
title_fullStr |
Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
title_full_unstemmed |
Population dynamics of Norwegian red deer: density-dependence and climatic variation. |
title_sort |
population dynamics of norwegian red deer: density-dependence and climatic variation. |
publishDate |
1998 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688882 http://www.ncbi.nlm.nih.gov/pubmed/9523435 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1688882 http://www.ncbi.nlm.nih.gov/pubmed/9523435 |
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1766130995787988992 |