Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment
The abundance and distribution of animals often vary dramatically among years in Arctic environments. Such variation, in turn, is closely related to changes in food abundance and its effect on vital rates such as survival and recruitment. However, the relative importance of survival and recruitment...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2725 2023-05-15T14:24:32+02:00 Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment Samelius, Gustaf Alisauskas, Ray T. 2018-11-02 application/pdf application/xml https://polarresearch.net/index.php/polar/article/view/2725 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2725/6186 https://polarresearch.net/index.php/polar/article/view/2725/6187 https://polarresearch.net/index.php/polar/article/view/2725 Polar Research; Vol. 36 No. (sup1) (2017): Special Issue: Arctic Fox Biology and Management 1751-8369 Life history population dynamics recruitment survival Vulpes lagopus info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftjpolarres 2021-11-11T19:13:09Z The abundance and distribution of animals often vary dramatically among years in Arctic environments. Such variation, in turn, is closely related to changes in food abundance and its effect on vital rates such as survival and recruitment. However, the relative importance of survival and recruitment to changes in population growth and how this varies with fluctuations in food abundance and climatic variation is poorly understood for most animals. The objective of this study was to examine how the relative importance of adult survival and recruitment to population change by Arctic foxes varies in relation to fluctuations in food abundance and climatic variation. Specifically, we used capture–recapture models to estimate how apparent adult survival and recruitment of Arctic foxes at a large Arctic goose colony varied in response to small mammal abundance, the numbers of two species of nesting geese and climate variation indexed by the Arctic Oscillation. Analyses of live capture data collected at Karrak Lake, Nunavut, Canada, from 2000 to 2015 showed that the population dynamics of Arctic foxes was driven largely by the pulsed dynamics in recruitment of foxes, whereas apparent survival of adult foxes was constant during the study. Recruitment fluctuated considerably among years and was correlated with fluctuations in small mammal abundance. Greater importance of recruitment to the population dynamics of Arctic foxes at our study site is characteristic of small and short-lived mammals. Article in Journal/Newspaper Arctic Arctic Nunavut Polar Research Vulpes lagopus Polar Research (E-Journal) Arctic Nunavut Canada Karrak Lake ENVELOPE(-100.250,-100.250,67.250,67.250) |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Life history population dynamics recruitment survival Vulpes lagopus |
spellingShingle |
Life history population dynamics recruitment survival Vulpes lagopus Samelius, Gustaf Alisauskas, Ray T. Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
topic_facet |
Life history population dynamics recruitment survival Vulpes lagopus |
description |
The abundance and distribution of animals often vary dramatically among years in Arctic environments. Such variation, in turn, is closely related to changes in food abundance and its effect on vital rates such as survival and recruitment. However, the relative importance of survival and recruitment to changes in population growth and how this varies with fluctuations in food abundance and climatic variation is poorly understood for most animals. The objective of this study was to examine how the relative importance of adult survival and recruitment to population change by Arctic foxes varies in relation to fluctuations in food abundance and climatic variation. Specifically, we used capture–recapture models to estimate how apparent adult survival and recruitment of Arctic foxes at a large Arctic goose colony varied in response to small mammal abundance, the numbers of two species of nesting geese and climate variation indexed by the Arctic Oscillation. Analyses of live capture data collected at Karrak Lake, Nunavut, Canada, from 2000 to 2015 showed that the population dynamics of Arctic foxes was driven largely by the pulsed dynamics in recruitment of foxes, whereas apparent survival of adult foxes was constant during the study. Recruitment fluctuated considerably among years and was correlated with fluctuations in small mammal abundance. Greater importance of recruitment to the population dynamics of Arctic foxes at our study site is characteristic of small and short-lived mammals. |
format |
Article in Journal/Newspaper |
author |
Samelius, Gustaf Alisauskas, Ray T. |
author_facet |
Samelius, Gustaf Alisauskas, Ray T. |
author_sort |
Samelius, Gustaf |
title |
Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
title_short |
Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
title_full |
Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
title_fullStr |
Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
title_full_unstemmed |
Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment |
title_sort |
components of population growth for arctic foxes at a large arctic goose colony: the relative contributions of adult survival and recruitment |
publisher |
Norwegian Polar Institute |
publishDate |
2018 |
url |
https://polarresearch.net/index.php/polar/article/view/2725 |
long_lat |
ENVELOPE(-100.250,-100.250,67.250,67.250) |
geographic |
Arctic Nunavut Canada Karrak Lake |
geographic_facet |
Arctic Nunavut Canada Karrak Lake |
genre |
Arctic Arctic Nunavut Polar Research Vulpes lagopus |
genre_facet |
Arctic Arctic Nunavut Polar Research Vulpes lagopus |
op_source |
Polar Research; Vol. 36 No. (sup1) (2017): Special Issue: Arctic Fox Biology and Management 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2725/6186 https://polarresearch.net/index.php/polar/article/view/2725/6187 https://polarresearch.net/index.php/polar/article/view/2725 |
_version_ |
1766296941208010752 |