A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal
Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal (...
Published in: | Royal Society Open Science |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Royal Society
2018
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/521314/ https://nora.nerc.ac.uk/id/eprint/521314/1/Hoffman.pdf https://doi.org/10.1098/rsos.181227 |
id |
ftnerc:oai:nora.nerc.ac.uk:521314 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:521314 2023-05-15T13:49:35+02:00 A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal Hoffman, J.I. Bauer, E. Paijmans, A.J. Humble, E. Beckmann, L.M. Kubetschek, C. Christaller, F. Kröcker, N. Fuchs, B. Moreras, A. Shihlomule, Y.D. Bester, M.N. Cleary, A.C. De Bruyn, P.J.N. Forcada, Jaume Goebel, M.E. Goldsworthy, S.D. Guinet, C. Hoelzel, A.R. Lydersen, C. Kovacs, K.M. Lowther, A. 2018-10 text http://nora.nerc.ac.uk/id/eprint/521314/ https://nora.nerc.ac.uk/id/eprint/521314/1/Hoffman.pdf https://doi.org/10.1098/rsos.181227 en eng Royal Society https://nora.nerc.ac.uk/id/eprint/521314/1/Hoffman.pdf Hoffman, J.I.; Bauer, E.; Paijmans, A.J.; Humble, E.; Beckmann, L.M.; Kubetschek, C.; Christaller, F.; Kröcker, N.; Fuchs, B.; Moreras, A.; Shihlomule, Y.D.; Bester, M.N.; Cleary, A.C.; De Bruyn, P.J.N.; Forcada, Jaume orcid:0000-0002-2115-0150 Goebel, M.E.; Goldsworthy, S.D.; Guinet, C.; Hoelzel, A.R.; Lydersen, C.; Kovacs, K.M.; Lowther, A. 2018 A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal. Royal Society Open Science, 5 (10), 181227. https://doi.org/10.1098/rsos.181227 <https://doi.org/10.1098/rsos.181227> cc_by_4 CC-BY Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1098/rsos.181227 2023-02-04T19:47:17Z Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal (Arctocephalus gazella), a circumpolar distributed marine mammal that was brought to the brink of extinction by the sealing industry in the eighteenth and nineteenth centuries. It is widely believed that animals emigrating from South Georgia, where a relict population escaped sealing, contributed to the re-establishment of formerly occupied breeding colonies across the geographical range of the species. To investigate this, we interrogated a genetic polymorphism (S291F) in the melanocortin 1 receptor gene, which is responsible for a cream-coloured phenotype that is relatively abundant at South Georgia and which appears to have recently spread to localities as far afield as Marion Island in the sub-Antarctic Indian Ocean. By sequencing a short region of this gene in 1492 pups from eight breeding colonies, we showed that S291F frequency rapidly declines with increasing geographical distance from South Georgia, consistent with locally restricted gene flow from South Georgia mainly to the South Shetland Islands and Bouvetøya. The S291F allele was not detected farther afield, suggesting that although emigrants from South Georgia may have been locally important, they are unlikely to have played a major role in the recovery of geographically more distant populations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic South Shetland Islands Indian Bouvetøya ENVELOPE(3.358,3.358,-54.422,-54.422) Royal Society Open Science 5 10 181227 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal (Arctocephalus gazella), a circumpolar distributed marine mammal that was brought to the brink of extinction by the sealing industry in the eighteenth and nineteenth centuries. It is widely believed that animals emigrating from South Georgia, where a relict population escaped sealing, contributed to the re-establishment of formerly occupied breeding colonies across the geographical range of the species. To investigate this, we interrogated a genetic polymorphism (S291F) in the melanocortin 1 receptor gene, which is responsible for a cream-coloured phenotype that is relatively abundant at South Georgia and which appears to have recently spread to localities as far afield as Marion Island in the sub-Antarctic Indian Ocean. By sequencing a short region of this gene in 1492 pups from eight breeding colonies, we showed that S291F frequency rapidly declines with increasing geographical distance from South Georgia, consistent with locally restricted gene flow from South Georgia mainly to the South Shetland Islands and Bouvetøya. The S291F allele was not detected farther afield, suggesting that although emigrants from South Georgia may have been locally important, they are unlikely to have played a major role in the recovery of geographically more distant populations. |
format |
Article in Journal/Newspaper |
author |
Hoffman, J.I. Bauer, E. Paijmans, A.J. Humble, E. Beckmann, L.M. Kubetschek, C. Christaller, F. Kröcker, N. Fuchs, B. Moreras, A. Shihlomule, Y.D. Bester, M.N. Cleary, A.C. De Bruyn, P.J.N. Forcada, Jaume Goebel, M.E. Goldsworthy, S.D. Guinet, C. Hoelzel, A.R. Lydersen, C. Kovacs, K.M. Lowther, A. |
spellingShingle |
Hoffman, J.I. Bauer, E. Paijmans, A.J. Humble, E. Beckmann, L.M. Kubetschek, C. Christaller, F. Kröcker, N. Fuchs, B. Moreras, A. Shihlomule, Y.D. Bester, M.N. Cleary, A.C. De Bruyn, P.J.N. Forcada, Jaume Goebel, M.E. Goldsworthy, S.D. Guinet, C. Hoelzel, A.R. Lydersen, C. Kovacs, K.M. Lowther, A. A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
author_facet |
Hoffman, J.I. Bauer, E. Paijmans, A.J. Humble, E. Beckmann, L.M. Kubetschek, C. Christaller, F. Kröcker, N. Fuchs, B. Moreras, A. Shihlomule, Y.D. Bester, M.N. Cleary, A.C. De Bruyn, P.J.N. Forcada, Jaume Goebel, M.E. Goldsworthy, S.D. Guinet, C. Hoelzel, A.R. Lydersen, C. Kovacs, K.M. Lowther, A. |
author_sort |
Hoffman, J.I. |
title |
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_short |
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_full |
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_fullStr |
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_full_unstemmed |
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_sort |
global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
publisher |
Royal Society |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/521314/ https://nora.nerc.ac.uk/id/eprint/521314/1/Hoffman.pdf https://doi.org/10.1098/rsos.181227 |
long_lat |
ENVELOPE(3.358,3.358,-54.422,-54.422) |
geographic |
Antarctic The Antarctic South Shetland Islands Indian Bouvetøya |
geographic_facet |
Antarctic The Antarctic South Shetland Islands Indian Bouvetøya |
genre |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands |
op_relation |
https://nora.nerc.ac.uk/id/eprint/521314/1/Hoffman.pdf Hoffman, J.I.; Bauer, E.; Paijmans, A.J.; Humble, E.; Beckmann, L.M.; Kubetschek, C.; Christaller, F.; Kröcker, N.; Fuchs, B.; Moreras, A.; Shihlomule, Y.D.; Bester, M.N.; Cleary, A.C.; De Bruyn, P.J.N.; Forcada, Jaume orcid:0000-0002-2115-0150 Goebel, M.E.; Goldsworthy, S.D.; Guinet, C.; Hoelzel, A.R.; Lydersen, C.; Kovacs, K.M.; Lowther, A. 2018 A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal. Royal Society Open Science, 5 (10), 181227. https://doi.org/10.1098/rsos.181227 <https://doi.org/10.1098/rsos.181227> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.181227 |
container_title |
Royal Society Open Science |
container_volume |
5 |
container_issue |
10 |
container_start_page |
181227 |
_version_ |
1766251825803034624 |