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
2017
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ftdoajarticles:oai:doaj.org/article:4ff01603276c49268695448a8d82f7f6 2023-05-15T14:33:48+02:00 Components of population growth for Arctic foxes at a large Arctic goose colony: the relative contributions of adult survival and recruitment Gustaf Samelius Ray T. Alisauskas 2017-09-01T00:00:00Z https://doi.org/10.1080/17518369.2017.1332948 https://doaj.org/article/4ff01603276c49268695448a8d82f7f6 EN eng Norwegian Polar Institute http://dx.doi.org/10.1080/17518369.2017.1332948 https://doaj.org/toc/1751-8369 1751-8369 doi:10.1080/17518369.2017.1332948 https://doaj.org/article/4ff01603276c49268695448a8d82f7f6 Polar Research, Vol 36, Iss 0 (2017) Life history population dynamics recruitment survival Vulpes lagopus Environmental sciences GE1-350 Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1080/17518369.2017.1332948 2022-12-31T00:52:28Z 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 Nunavut Polar Research Vulpes lagopus Directory of Open Access Journals: DOAJ Articles Arctic Canada Karrak Lake ENVELOPE(-100.250,-100.250,67.250,67.250) Nunavut Polar Research 36 sup1 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Life history population dynamics recruitment survival Vulpes lagopus Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Life history population dynamics recruitment survival Vulpes lagopus Environmental sciences GE1-350 Oceanography GC1-1581 Gustaf Samelius Ray T. Alisauskas 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 Environmental sciences GE1-350 Oceanography GC1-1581 |
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 |
Gustaf Samelius Ray T. Alisauskas |
author_facet |
Gustaf Samelius Ray T. Alisauskas |
author_sort |
Gustaf Samelius |
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 |
2017 |
url |
https://doi.org/10.1080/17518369.2017.1332948 https://doaj.org/article/4ff01603276c49268695448a8d82f7f6 |
long_lat |
ENVELOPE(-100.250,-100.250,67.250,67.250) |
geographic |
Arctic Canada Karrak Lake Nunavut |
geographic_facet |
Arctic Canada Karrak Lake Nunavut |
genre |
Arctic Nunavut Polar Research Vulpes lagopus |
genre_facet |
Arctic Nunavut Polar Research Vulpes lagopus |
op_source |
Polar Research, Vol 36, Iss 0 (2017) |
op_relation |
http://dx.doi.org/10.1080/17518369.2017.1332948 https://doaj.org/toc/1751-8369 1751-8369 doi:10.1080/17518369.2017.1332948 https://doaj.org/article/4ff01603276c49268695448a8d82f7f6 |
op_doi |
https://doi.org/10.1080/17518369.2017.1332948 |
container_title |
Polar Research |
container_volume |
36 |
container_issue |
sup1 |
container_start_page |
6 |
_version_ |
1766306993154293760 |