Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes
Species that seasonally moult from brown to white to match snowy backgrounds become conspicuous and experience increased predation risk as snow cover duration declines. Long-term adaptation to camouflage mismatch in a changing climate might occur through phenotypic plasticity in colour moult phenolo...
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ftzenodo:oai:zenodo.org:7315979 2023-05-15T14:57:51+02:00 Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes Zimova, Marketa Moberg, Dick 2022-11-12 https://zenodo.org/record/7315979 https://doi.org/10.5061/dryad.djh9w0w3n unknown https://zenodo.org/communities/dryad https://zenodo.org/record/7315979 https://doi.org/10.5061/dryad.djh9w0w3n oai:zenodo.org:7315979 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other dataset 2022 ftzenodo https://doi.org/10.5061/dryad.djh9w0w3n 2023-03-11T03:05:22Z Species that seasonally moult from brown to white to match snowy backgrounds become conspicuous and experience increased predation risk as snow cover duration declines. Long-term adaptation to camouflage mismatch in a changing climate might occur through phenotypic plasticity in colour moult phenology and or evolutionary shifts in moult rate or timing. Also, adaptation may include evolutionary shifts towards winter brown phenotypes that forgo the winter white moult. Most studies of these processes have occurred in winter white populations, with little attention to polymorphic populations with sympatric winter brown and winter white morphs. Here, we used remote camera traps to record moult phenology and mismatch in two polymorphic populations of Arctic foxes in Sweden over 2 years. We found that the colder, more northern population moulted earlier in the fall and later in the spring. Next, foxes moulted earlier in the fall and later in the spring during colder and snowier years. Finally, white foxes experienced relatively low camouflage mismatch while blue foxes were mismatched against snowy backgrounds most of the fall through the spring. Because the brown-on-white mismatch imposes no evident costs, we predict that as snow duration decreases, increasing blue morph frequencies might help facilitate species persistence. Funding provided by: National Science FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000001Award Number: Dataset Arctic Zenodo Arctic |
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Species that seasonally moult from brown to white to match snowy backgrounds become conspicuous and experience increased predation risk as snow cover duration declines. Long-term adaptation to camouflage mismatch in a changing climate might occur through phenotypic plasticity in colour moult phenology and or evolutionary shifts in moult rate or timing. Also, adaptation may include evolutionary shifts towards winter brown phenotypes that forgo the winter white moult. Most studies of these processes have occurred in winter white populations, with little attention to polymorphic populations with sympatric winter brown and winter white morphs. Here, we used remote camera traps to record moult phenology and mismatch in two polymorphic populations of Arctic foxes in Sweden over 2 years. We found that the colder, more northern population moulted earlier in the fall and later in the spring. Next, foxes moulted earlier in the fall and later in the spring during colder and snowier years. Finally, white foxes experienced relatively low camouflage mismatch while blue foxes were mismatched against snowy backgrounds most of the fall through the spring. Because the brown-on-white mismatch imposes no evident costs, we predict that as snow duration decreases, increasing blue morph frequencies might help facilitate species persistence. Funding provided by: National Science FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000001Award Number: |
format |
Dataset |
author |
Zimova, Marketa Moberg, Dick |
spellingShingle |
Zimova, Marketa Moberg, Dick Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
author_facet |
Zimova, Marketa Moberg, Dick |
author_sort |
Zimova, Marketa |
title |
Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
title_short |
Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
title_full |
Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
title_fullStr |
Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
title_full_unstemmed |
Colour moult phenology and camouflage mismatch in polymorphic populations of Arctic foxes |
title_sort |
colour moult phenology and camouflage mismatch in polymorphic populations of arctic foxes |
publishDate |
2022 |
url |
https://zenodo.org/record/7315979 https://doi.org/10.5061/dryad.djh9w0w3n |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/7315979 https://doi.org/10.5061/dryad.djh9w0w3n oai:zenodo.org:7315979 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.djh9w0w3n |
_version_ |
1766329961840377856 |