Inbreeding depression in a critically endangered carnivore
Abstract Harmful effects arising from matings between relatives (inbreeding) is a long‐standing observation that is well founded in theory. Empirical evidence for inbreeding depression in natural populations is however rare because of the challenges of assembling pedigrees supplemented with fitness...
Published in: | Molecular Ecology |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2016
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mec.13674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13674 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13674 |
id |
crwiley:10.1111/mec.13674 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mec.13674 2024-09-15T17:52:36+00:00 Inbreeding depression in a critically endangered carnivore Norén, Karin Godoy, Erika Dalén, Love Meijer, Tomas Angerbjörn, Anders World Wildlife Fund Svenska Forskningsrådet Formas County Board Administration in Jämtland, Sweden SEFALO EU LIFE-funded Swedish Nature Protection Agency World Wildlife Fund Fjällräven AB Cronstedt Foundation Svenska Forskningsrådet Formas EkoKlim at Stockholm University 2016 http://dx.doi.org/10.1111/mec.13674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13674 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13674 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 25, issue 14, page 3309-3318 ISSN 0962-1083 1365-294X journal-article 2016 crwiley https://doi.org/10.1111/mec.13674 2024-08-13T04:16:50Z Abstract Harmful effects arising from matings between relatives (inbreeding) is a long‐standing observation that is well founded in theory. Empirical evidence for inbreeding depression in natural populations is however rare because of the challenges of assembling pedigrees supplemented with fitness traits. We examined the occurrence of inbreeding and subsequent inbreeding depression using a unique data set containing a genetically verified pedigree with individual fitness traits for a critically endangered arctic fox ( Vulpes lagopus ) population. The study covered nine years and was comprised of 33 litters with a total of 205 individuals. We recorded that the present population was founded by only five individuals. Over the study period, the population exhibited a tenfold increase in average inbreeding coefficient with a final level corresponding to half‐sib matings. Inbreeding mainly occurred between cousins, but we also observed two cases of full‐sib matings. The pedigree data demonstrated clear evidence of inbreeding depression on traditional fitness traits where inbred individuals displayed reduced survival and reproduction. Fitness traits were however differently affected by the fluctuating resource abundande. Inbred individuals born at low‐quality years displayed reduced first‐year survival, while inbred individuals born at high‐quality years were less likely to reproduce. The documentation of inbreeding depression in fundamental fitness traits suggests that inbreeding depression can limit population recovery. Introducing new genetic material to promote a genetic rescue effect may thus be necessary for population long‐term persistence. Article in Journal/Newspaper Arctic Fox Vulpes lagopus Wiley Online Library Molecular Ecology 25 14 3309 3318 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Harmful effects arising from matings between relatives (inbreeding) is a long‐standing observation that is well founded in theory. Empirical evidence for inbreeding depression in natural populations is however rare because of the challenges of assembling pedigrees supplemented with fitness traits. We examined the occurrence of inbreeding and subsequent inbreeding depression using a unique data set containing a genetically verified pedigree with individual fitness traits for a critically endangered arctic fox ( Vulpes lagopus ) population. The study covered nine years and was comprised of 33 litters with a total of 205 individuals. We recorded that the present population was founded by only five individuals. Over the study period, the population exhibited a tenfold increase in average inbreeding coefficient with a final level corresponding to half‐sib matings. Inbreeding mainly occurred between cousins, but we also observed two cases of full‐sib matings. The pedigree data demonstrated clear evidence of inbreeding depression on traditional fitness traits where inbred individuals displayed reduced survival and reproduction. Fitness traits were however differently affected by the fluctuating resource abundande. Inbred individuals born at low‐quality years displayed reduced first‐year survival, while inbred individuals born at high‐quality years were less likely to reproduce. The documentation of inbreeding depression in fundamental fitness traits suggests that inbreeding depression can limit population recovery. Introducing new genetic material to promote a genetic rescue effect may thus be necessary for population long‐term persistence. |
author2 |
World Wildlife Fund Svenska Forskningsrådet Formas County Board Administration in Jämtland, Sweden SEFALO EU LIFE-funded Swedish Nature Protection Agency World Wildlife Fund Fjällräven AB Cronstedt Foundation Svenska Forskningsrådet Formas EkoKlim at Stockholm University |
format |
Article in Journal/Newspaper |
author |
Norén, Karin Godoy, Erika Dalén, Love Meijer, Tomas Angerbjörn, Anders |
spellingShingle |
Norén, Karin Godoy, Erika Dalén, Love Meijer, Tomas Angerbjörn, Anders Inbreeding depression in a critically endangered carnivore |
author_facet |
Norén, Karin Godoy, Erika Dalén, Love Meijer, Tomas Angerbjörn, Anders |
author_sort |
Norén, Karin |
title |
Inbreeding depression in a critically endangered carnivore |
title_short |
Inbreeding depression in a critically endangered carnivore |
title_full |
Inbreeding depression in a critically endangered carnivore |
title_fullStr |
Inbreeding depression in a critically endangered carnivore |
title_full_unstemmed |
Inbreeding depression in a critically endangered carnivore |
title_sort |
inbreeding depression in a critically endangered carnivore |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/mec.13674 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13674 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13674 |
genre |
Arctic Fox Vulpes lagopus |
genre_facet |
Arctic Fox Vulpes lagopus |
op_source |
Molecular Ecology volume 25, issue 14, page 3309-3318 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/mec.13674 |
container_title |
Molecular Ecology |
container_volume |
25 |
container_issue |
14 |
container_start_page |
3309 |
op_container_end_page |
3318 |
_version_ |
1810294659939827712 |