Spatial variation in food availability predicts extrapair paternity in the arctic fox
Extrapair paternity (EPP) is described in many socially monogamous species, but within-population variability in its frequency is poorly documented. Availability and distribution of food may influence polyandrous behaviors, either directly by affecting the need for paternal care or indirectly via th...
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fthighwire:oai:open-archive.highwire.org:beheco:22/6/1364 2023-05-15T14:31:07+02:00 Spatial variation in food availability predicts extrapair paternity in the arctic fox Cameron, Cassandra Berteaux, Dominique Dufresne, France 2011-11-01 00:00:00.0 text/html http://beheco.oxfordjournals.org/cgi/content/short/22/6/1364 https://doi.org/10.1093/beheco/arr158 en eng Oxford University Press http://beheco.oxfordjournals.org/cgi/content/short/22/6/1364 http://dx.doi.org/10.1093/beheco/arr158 Copyright (C) 2011, International Society for Behavioral Ecology ORIGINAL ARTICLES TEXT 2011 fthighwire https://doi.org/10.1093/beheco/arr158 2016-11-16T17:34:58Z Extrapair paternity (EPP) is described in many socially monogamous species, but within-population variability in its frequency is poorly documented. Availability and distribution of food may influence polyandrous behaviors, either directly by affecting the need for paternal care or indirectly via their effect on population density. We quantified the frequency of EPP in a population of arctic foxes ( Vulpes lagopus ), a predominantly socially monogamous species with high paternal investment. We then tested whether spatial (presence of a goose colony) and temporal (cycles of lemmings) variations in food availability were linked to variations in mating systems within the population. From 2003 to 2008, we studied the mating systems of arctic foxes on Bylot Island (Nunavut, Canada) by combining molecular analyses with behavioral observations during cub rearing. Although the dominant social mating system was monogamy, at least 31% of cubs with known social father were born from extrapair matings (in 10 of 38 litters sampled). Likelihood of EPP was associated with food availability. It was greatest (86%) at the center of the goose colony and decreased sharply with increasing distance from it. EPP can thus be frequent in the socially monogamous arctic fox, and intraspecific variability in extrapair matings is strongly correlated with food availability during cub rearing. Text Arctic Fox Arctic Bylot Island Nunavut Vulpes lagopus HighWire Press (Stanford University) Arctic Nunavut Bylot Island Canada Behavioral Ecology 22 6 1364 1373 |
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HighWire Press (Stanford University) |
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English |
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ORIGINAL ARTICLES |
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ORIGINAL ARTICLES Cameron, Cassandra Berteaux, Dominique Dufresne, France Spatial variation in food availability predicts extrapair paternity in the arctic fox |
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ORIGINAL ARTICLES |
description |
Extrapair paternity (EPP) is described in many socially monogamous species, but within-population variability in its frequency is poorly documented. Availability and distribution of food may influence polyandrous behaviors, either directly by affecting the need for paternal care or indirectly via their effect on population density. We quantified the frequency of EPP in a population of arctic foxes ( Vulpes lagopus ), a predominantly socially monogamous species with high paternal investment. We then tested whether spatial (presence of a goose colony) and temporal (cycles of lemmings) variations in food availability were linked to variations in mating systems within the population. From 2003 to 2008, we studied the mating systems of arctic foxes on Bylot Island (Nunavut, Canada) by combining molecular analyses with behavioral observations during cub rearing. Although the dominant social mating system was monogamy, at least 31% of cubs with known social father were born from extrapair matings (in 10 of 38 litters sampled). Likelihood of EPP was associated with food availability. It was greatest (86%) at the center of the goose colony and decreased sharply with increasing distance from it. EPP can thus be frequent in the socially monogamous arctic fox, and intraspecific variability in extrapair matings is strongly correlated with food availability during cub rearing. |
format |
Text |
author |
Cameron, Cassandra Berteaux, Dominique Dufresne, France |
author_facet |
Cameron, Cassandra Berteaux, Dominique Dufresne, France |
author_sort |
Cameron, Cassandra |
title |
Spatial variation in food availability predicts extrapair paternity in the arctic fox |
title_short |
Spatial variation in food availability predicts extrapair paternity in the arctic fox |
title_full |
Spatial variation in food availability predicts extrapair paternity in the arctic fox |
title_fullStr |
Spatial variation in food availability predicts extrapair paternity in the arctic fox |
title_full_unstemmed |
Spatial variation in food availability predicts extrapair paternity in the arctic fox |
title_sort |
spatial variation in food availability predicts extrapair paternity in the arctic fox |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
http://beheco.oxfordjournals.org/cgi/content/short/22/6/1364 https://doi.org/10.1093/beheco/arr158 |
geographic |
Arctic Nunavut Bylot Island Canada |
geographic_facet |
Arctic Nunavut Bylot Island Canada |
genre |
Arctic Fox Arctic Bylot Island Nunavut Vulpes lagopus |
genre_facet |
Arctic Fox Arctic Bylot Island Nunavut Vulpes lagopus |
op_relation |
http://beheco.oxfordjournals.org/cgi/content/short/22/6/1364 http://dx.doi.org/10.1093/beheco/arr158 |
op_rights |
Copyright (C) 2011, International Society for Behavioral Ecology |
op_doi |
https://doi.org/10.1093/beheco/arr158 |
container_title |
Behavioral Ecology |
container_volume |
22 |
container_issue |
6 |
container_start_page |
1364 |
op_container_end_page |
1373 |
_version_ |
1766304832440762368 |