Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation
The relative contribution of density‐dependent and density‐independent factors on variation in the population growth rate of an introduced population Svalbard reindeer was studied by time series analysis. No significant effects of either direct or delayed density‐dependence were found. Annual variat...
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crwiley:10.1111/j.1600-0587.2000.tb00300.x 2024-06-23T07:50:18+00:00 Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation Aanes, Ronny Sæther, Bernt‐Erik Øritsland, Nils Are 2000 http://dx.doi.org/10.1111/j.1600-0587.2000.tb00300.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.2000.tb00300.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.2000.tb00300.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 23, issue 4, page 437-443 ISSN 0906-7590 1600-0587 journal-article 2000 crwiley https://doi.org/10.1111/j.1600-0587.2000.tb00300.x 2024-06-11T04:48:08Z The relative contribution of density‐dependent and density‐independent factors on variation in the population growth rate of an introduced population Svalbard reindeer was studied by time series analysis. No significant effects of either direct or delayed density‐dependence were found. Annual variation in population growth rate was strongly negatively related to amount of precipitation during winter (i.e. high growth rates occurred when winters were dry). There was no significant relationship between the NAO‐index and the population growth rate. However, there was an interaction between population density and the climatic variables, i.e. the effect of climate was stronger at high densities. These results support the view that population fluctuations of arctic ungulates are strongly influenced by stochastic variation in climate. Article in Journal/Newspaper Arctic Svalbard svalbard reindeer Wiley Online Library Arctic Svalbard Ecography 23 4 437 443 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
The relative contribution of density‐dependent and density‐independent factors on variation in the population growth rate of an introduced population Svalbard reindeer was studied by time series analysis. No significant effects of either direct or delayed density‐dependence were found. Annual variation in population growth rate was strongly negatively related to amount of precipitation during winter (i.e. high growth rates occurred when winters were dry). There was no significant relationship between the NAO‐index and the population growth rate. However, there was an interaction between population density and the climatic variables, i.e. the effect of climate was stronger at high densities. These results support the view that population fluctuations of arctic ungulates are strongly influenced by stochastic variation in climate. |
format |
Article in Journal/Newspaper |
author |
Aanes, Ronny Sæther, Bernt‐Erik Øritsland, Nils Are |
spellingShingle |
Aanes, Ronny Sæther, Bernt‐Erik Øritsland, Nils Are Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
author_facet |
Aanes, Ronny Sæther, Bernt‐Erik Øritsland, Nils Are |
author_sort |
Aanes, Ronny |
title |
Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
title_short |
Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
title_full |
Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
title_fullStr |
Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
title_full_unstemmed |
Fluctuations of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation |
title_sort |
fluctuations of an introduced population of svalbard reindeer: the effects of density dependence and climatic variation |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1600-0587.2000.tb00300.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.2000.tb00300.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.2000.tb00300.x |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Svalbard svalbard reindeer |
genre_facet |
Arctic Svalbard svalbard reindeer |
op_source |
Ecography volume 23, issue 4, page 437-443 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.2000.tb00300.x |
container_title |
Ecography |
container_volume |
23 |
container_issue |
4 |
container_start_page |
437 |
op_container_end_page |
443 |
_version_ |
1802641165871218688 |