Genetics and extinction and the example of Isle Royale wolves
Genetic factors have long been a concern in the extinction and viability of species with the short-term effects focusing on inbreeding depression. Genetic rescue has been suggested as a means to overcome the detrimental effects of inbreeding depression. However, it has been difficult to document the...
Published in: | Animal Conservation |
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eScholarship, University of California
2019
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Online Access: | https://escholarship.org/uc/item/2fd2600s https://escholarship.org/content/qt2fd2600s/qt2fd2600s.pdf https://doi.org/10.1111/acv.12479 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt2fd2600s 2024-09-15T18:01:07+00:00 Genetics and extinction and the example of Isle Royale wolves Hedrick, PW Robinson, JA Peterson, RO Vucetich, JA Johnson, Jeff 302 - 309 2019-06-01 application/pdf https://escholarship.org/uc/item/2fd2600s https://escholarship.org/content/qt2fd2600s/qt2fd2600s.pdf https://doi.org/10.1111/acv.12479 unknown eScholarship, University of California qt2fd2600s https://escholarship.org/uc/item/2fd2600s https://escholarship.org/content/qt2fd2600s/qt2fd2600s.pdf doi:10.1111/acv.12479 CC-BY-NC-ND Animal Conservation, vol 22, iss 3 Genetics Depression Mental Health Life on Land immigration inbreeding inbreeding depression pedigree runs of homozygosity SNPs extinction Canis lupus Environmental Sciences Biological Sciences Ecology article 2019 ftcdlib https://doi.org/10.1111/acv.12479 2024-06-28T06:28:19Z Genetic factors have long been a concern in the extinction and viability of species with the short-term effects focusing on inbreeding depression. Genetic rescue has been suggested as a means to overcome the detrimental effects of inbreeding depression. However, it has been difficult to document the genetic dynamics over time of genetic rescue, inbreeding depression and other genetic relationships in endangered species. We show here using a detailed pedigree and genomic data that genetic rescue in the gray wolf Canis lupus population on Isle Royale had only a temporary positive effect reducing inbreeding depression and then the genetic changes from the immigration event resulted in a population decline and now imminent extinction of the population. Examining the genetic details of this situation shows how genetic dynamics after the initial positive effects of genetic rescue have passed can return a small population to a path toward extinction. Thus, the successful conservation of critically small populations would likely depend on alleviating the cause of having become critically small, such as habitat restoration, or periodic re-application of genetic rescue in a manner that does not result in negative genetic dynamics. Article in Journal/Newspaper Canis lupus gray wolf University of California: eScholarship Animal Conservation 22 3 302 309 |
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Open Polar |
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University of California: eScholarship |
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topic |
Genetics Depression Mental Health Life on Land immigration inbreeding inbreeding depression pedigree runs of homozygosity SNPs extinction Canis lupus Environmental Sciences Biological Sciences Ecology |
spellingShingle |
Genetics Depression Mental Health Life on Land immigration inbreeding inbreeding depression pedigree runs of homozygosity SNPs extinction Canis lupus Environmental Sciences Biological Sciences Ecology Hedrick, PW Robinson, JA Peterson, RO Vucetich, JA Genetics and extinction and the example of Isle Royale wolves |
topic_facet |
Genetics Depression Mental Health Life on Land immigration inbreeding inbreeding depression pedigree runs of homozygosity SNPs extinction Canis lupus Environmental Sciences Biological Sciences Ecology |
description |
Genetic factors have long been a concern in the extinction and viability of species with the short-term effects focusing on inbreeding depression. Genetic rescue has been suggested as a means to overcome the detrimental effects of inbreeding depression. However, it has been difficult to document the genetic dynamics over time of genetic rescue, inbreeding depression and other genetic relationships in endangered species. We show here using a detailed pedigree and genomic data that genetic rescue in the gray wolf Canis lupus population on Isle Royale had only a temporary positive effect reducing inbreeding depression and then the genetic changes from the immigration event resulted in a population decline and now imminent extinction of the population. Examining the genetic details of this situation shows how genetic dynamics after the initial positive effects of genetic rescue have passed can return a small population to a path toward extinction. Thus, the successful conservation of critically small populations would likely depend on alleviating the cause of having become critically small, such as habitat restoration, or periodic re-application of genetic rescue in a manner that does not result in negative genetic dynamics. |
author2 |
Johnson, Jeff |
format |
Article in Journal/Newspaper |
author |
Hedrick, PW Robinson, JA Peterson, RO Vucetich, JA |
author_facet |
Hedrick, PW Robinson, JA Peterson, RO Vucetich, JA |
author_sort |
Hedrick, PW |
title |
Genetics and extinction and the example of Isle Royale wolves |
title_short |
Genetics and extinction and the example of Isle Royale wolves |
title_full |
Genetics and extinction and the example of Isle Royale wolves |
title_fullStr |
Genetics and extinction and the example of Isle Royale wolves |
title_full_unstemmed |
Genetics and extinction and the example of Isle Royale wolves |
title_sort |
genetics and extinction and the example of isle royale wolves |
publisher |
eScholarship, University of California |
publishDate |
2019 |
url |
https://escholarship.org/uc/item/2fd2600s https://escholarship.org/content/qt2fd2600s/qt2fd2600s.pdf https://doi.org/10.1111/acv.12479 |
op_coverage |
302 - 309 |
genre |
Canis lupus gray wolf |
genre_facet |
Canis lupus gray wolf |
op_source |
Animal Conservation, vol 22, iss 3 |
op_relation |
qt2fd2600s https://escholarship.org/uc/item/2fd2600s https://escholarship.org/content/qt2fd2600s/qt2fd2600s.pdf doi:10.1111/acv.12479 |
op_rights |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/acv.12479 |
container_title |
Animal Conservation |
container_volume |
22 |
container_issue |
3 |
container_start_page |
302 |
op_container_end_page |
309 |
_version_ |
1810438309332123648 |