Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula
Abstract Adélie penguins ( Pygoscelis adeliae ) are responding to ocean–climate variability throughout the marine ecosystem of the western Antarctic Peninsula (WAP) where some breeding colonies have declined by 80%. Nuclear and mitochondrial DNA (mtDNA) markers were used to understand historical pop...
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Online Access: | http://dx.doi.org/10.1017/s0954102017000293 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102017000293 |
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crcambridgeupr:10.1017/s0954102017000293 2024-03-03T08:38:29+00:00 Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula Gorman, Kristen B. Talbot, Sandra L. Sonsthagen, Sarah A. Sage, George K. Gravely, Meg C. Fraser, William R. Williams, Tony D. 2017 http://dx.doi.org/10.1017/s0954102017000293 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102017000293 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 29, issue 6, page 499-510 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2017 crcambridgeupr https://doi.org/10.1017/s0954102017000293 2024-02-08T08:47:38Z Abstract Adélie penguins ( Pygoscelis adeliae ) are responding to ocean–climate variability throughout the marine ecosystem of the western Antarctic Peninsula (WAP) where some breeding colonies have declined by 80%. Nuclear and mitochondrial DNA (mtDNA) markers were used to understand historical population genetic structure and gene flow given relatively recent and continuing reductions in sea ice habitats and changes in numbers of breeding adults at colonies throughout the WAP. Genetic diversity, spatial genetic structure, genetic signatures of fluctuations in population demography and gene flow were assessed in four regional Adélie penguin colonies. The analyses indicated little genetic structure overall based on bi-parentally inherited microsatellite markers ( F ST =-0.006–0.004). No significant variance was observed in overall haplotype frequency (mtDNA Φ ST =0.017; P =0.112). Some comparisons with Charcot Island were significant, suggestive of female-biased philopatry. Estimates of gene flow based on a two-population coalescent model were asymmetrical from the species’ regional core to its northern range. Breeding Adélie penguins of the WAP are a panmictic population and hold adequate genetic diversity and dispersal capacity to be resilient to environmental change. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Charcot Island Pygoscelis adeliae Sea ice Cambridge University Press Antarctic Antarctic Peninsula Charcot ENVELOPE(139.017,139.017,-69.367,-69.367) Charcot Island ENVELOPE(-75.250,-75.250,-69.750,-69.750) Antarctic Science 29 6 499 510 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Gorman, Kristen B. Talbot, Sandra L. Sonsthagen, Sarah A. Sage, George K. Gravely, Meg C. Fraser, William R. Williams, Tony D. Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Adélie penguins ( Pygoscelis adeliae ) are responding to ocean–climate variability throughout the marine ecosystem of the western Antarctic Peninsula (WAP) where some breeding colonies have declined by 80%. Nuclear and mitochondrial DNA (mtDNA) markers were used to understand historical population genetic structure and gene flow given relatively recent and continuing reductions in sea ice habitats and changes in numbers of breeding adults at colonies throughout the WAP. Genetic diversity, spatial genetic structure, genetic signatures of fluctuations in population demography and gene flow were assessed in four regional Adélie penguin colonies. The analyses indicated little genetic structure overall based on bi-parentally inherited microsatellite markers ( F ST =-0.006–0.004). No significant variance was observed in overall haplotype frequency (mtDNA Φ ST =0.017; P =0.112). Some comparisons with Charcot Island were significant, suggestive of female-biased philopatry. Estimates of gene flow based on a two-population coalescent model were asymmetrical from the species’ regional core to its northern range. Breeding Adélie penguins of the WAP are a panmictic population and hold adequate genetic diversity and dispersal capacity to be resilient to environmental change. |
format |
Article in Journal/Newspaper |
author |
Gorman, Kristen B. Talbot, Sandra L. Sonsthagen, Sarah A. Sage, George K. Gravely, Meg C. Fraser, William R. Williams, Tony D. |
author_facet |
Gorman, Kristen B. Talbot, Sandra L. Sonsthagen, Sarah A. Sage, George K. Gravely, Meg C. Fraser, William R. Williams, Tony D. |
author_sort |
Gorman, Kristen B. |
title |
Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
title_short |
Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
title_full |
Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
title_fullStr |
Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
title_full_unstemmed |
Population genetic structure and gene flow of Adélie penguins ( Pygoscelis adeliae ) breeding throughout the western Antarctic Peninsula |
title_sort |
population genetic structure and gene flow of adélie penguins ( pygoscelis adeliae ) breeding throughout the western antarctic peninsula |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/s0954102017000293 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102017000293 |
long_lat |
ENVELOPE(139.017,139.017,-69.367,-69.367) ENVELOPE(-75.250,-75.250,-69.750,-69.750) |
geographic |
Antarctic Antarctic Peninsula Charcot Charcot Island |
geographic_facet |
Antarctic Antarctic Peninsula Charcot Charcot Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Charcot Island Pygoscelis adeliae Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Charcot Island Pygoscelis adeliae Sea ice |
op_source |
Antarctic Science volume 29, issue 6, page 499-510 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102017000293 |
container_title |
Antarctic Science |
container_volume |
29 |
container_issue |
6 |
container_start_page |
499 |
op_container_end_page |
510 |
_version_ |
1792506875244183552 |