2009 Rapid response of a marine mammal species to Holocene climate and habitat change
Environmental change drives demographic and evolutionary processes that determine diversity within and among species. Tracking these processes during periods of change reveals mechanisms for the establishment of populations and provides predictive data on response to potential future impacts, includ...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.358.5665 2023-05-15T13:41:56+02:00 2009 Rapid response of a marine mammal species to Holocene climate and habitat change Mark De Bruyn Brenda L. Hall Lucas F. Chauke Carlo Baroni Paul L. Koch A. Rus Hoelzel The Pennsylvania State University CiteSeerX Archives 2000 application/zip http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5665 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5665 Metadata may be used without restrictions as long as the oai identifier remains attached to it. ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/ef/9a/PLoS_Genet_2009_Jul_10_5(7)_e1000554.tar.gz text 2000 ftciteseerx 2016-01-08T00:41:17Z Environmental change drives demographic and evolutionary processes that determine diversity within and among species. Tracking these processes during periods of change reveals mechanisms for the establishment of populations and provides predictive data on response to potential future impacts, including those caused by anthropogenic climate change. Here we show how a highly mobile marine species responded to the gain and loss of new breeding habitat. Southern elephant seal, Mirounga leonina, remains were found along the Victoria Land Coast (VLC) in the Ross Sea, Antarctica, 2,500 km from the nearest extant breeding site on Macquarie Island (MQ). This habitat was released after retreat of the grounded ice sheet in the Ross Sea Embayment 7,500–8,000 cal YBP, and is within the range of modern foraging excursions from the MQ colony. Using ancient mtDNA and coalescent models, we tracked the population dynamics of the now extinct VLC colony and the connectivity between this and extant breeding sites. We found a clear expansion signal in the VLC population,8,000 YBP, followed by directional migration away from VLC and the loss of diversity at,1,000 YBP, when sea ice is thought to have expanded. Our data suggest that VLC seals came initially from MQ and that some returned there once the VLC habitat was lost,,7,000 years later. We track the founder-extinction dynamics of a population from inception to extinction in the context of Holocene climate change and present evidence that an unexpectedly diverse, differentiated breeding population Text Antarc* Antarctica Elephant Seal Ice Sheet Macquarie Island Mirounga leonina Ross Sea Sea ice Southern Elephant Seal Victoria Land Unknown Ross Sea Victoria Land |
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English |
description |
Environmental change drives demographic and evolutionary processes that determine diversity within and among species. Tracking these processes during periods of change reveals mechanisms for the establishment of populations and provides predictive data on response to potential future impacts, including those caused by anthropogenic climate change. Here we show how a highly mobile marine species responded to the gain and loss of new breeding habitat. Southern elephant seal, Mirounga leonina, remains were found along the Victoria Land Coast (VLC) in the Ross Sea, Antarctica, 2,500 km from the nearest extant breeding site on Macquarie Island (MQ). This habitat was released after retreat of the grounded ice sheet in the Ross Sea Embayment 7,500–8,000 cal YBP, and is within the range of modern foraging excursions from the MQ colony. Using ancient mtDNA and coalescent models, we tracked the population dynamics of the now extinct VLC colony and the connectivity between this and extant breeding sites. We found a clear expansion signal in the VLC population,8,000 YBP, followed by directional migration away from VLC and the loss of diversity at,1,000 YBP, when sea ice is thought to have expanded. Our data suggest that VLC seals came initially from MQ and that some returned there once the VLC habitat was lost,,7,000 years later. We track the founder-extinction dynamics of a population from inception to extinction in the context of Holocene climate change and present evidence that an unexpectedly diverse, differentiated breeding population |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Mark De Bruyn Brenda L. Hall Lucas F. Chauke Carlo Baroni Paul L. Koch A. Rus Hoelzel |
spellingShingle |
Mark De Bruyn Brenda L. Hall Lucas F. Chauke Carlo Baroni Paul L. Koch A. Rus Hoelzel 2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
author_facet |
Mark De Bruyn Brenda L. Hall Lucas F. Chauke Carlo Baroni Paul L. Koch A. Rus Hoelzel |
author_sort |
Mark De Bruyn |
title |
2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
title_short |
2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
title_full |
2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
title_fullStr |
2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
title_full_unstemmed |
2009 Rapid response of a marine mammal species to Holocene climate and habitat change |
title_sort |
2009 rapid response of a marine mammal species to holocene climate and habitat change |
publishDate |
2000 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5665 |
geographic |
Ross Sea Victoria Land |
geographic_facet |
Ross Sea Victoria Land |
genre |
Antarc* Antarctica Elephant Seal Ice Sheet Macquarie Island Mirounga leonina Ross Sea Sea ice Southern Elephant Seal Victoria Land |
genre_facet |
Antarc* Antarctica Elephant Seal Ice Sheet Macquarie Island Mirounga leonina Ross Sea Sea ice Southern Elephant Seal Victoria Land |
op_source |
ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/ef/9a/PLoS_Genet_2009_Jul_10_5(7)_e1000554.tar.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5665 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766160679748763648 |