Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range
Background: Seabirds are important components of marine ecosystems, both as predators and as indicators of ecological change, being conspicuous and sensitive to changes in prey abundance. To determine whether fluctuations in population sizes are localised or indicative of large-scale ecosystem chang...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:95639 2023-07-02T03:30:10+02:00 Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range Clucas, Gemma V. Younger, Jane L. Kao, Damian Rogers, Alex D. Handley, Jonathan Miller, Gary D. Jouventin, Pierre Nolan, Paul Gharbi, Karim Miller, Karen J. Hart, Tom 2016-10-03T16:23:36.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-0o-gwbq https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95639 unknown doi:10.5061/dryad.7c0q8/1 doi:10.5061/dryad.7c0q8/2 doi:10.5061/dryad.7c0q8/3 doi:10.1186/s12862-016-0784-z PMID:27733109 http://nbn-resolving.org/urn:nbn:nl:ui:13-0o-gwbq doi:10.5061/dryad.7c0q8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95639 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.7c0q8/110.5061/dryad.7c0q8/210.5061/dryad.7c0q8/310.1186/s12862-016-0784-z10.5061/dryad.7c0q8 2023-06-13T13:23:37Z Background: Seabirds are important components of marine ecosystems, both as predators and as indicators of ecological change, being conspicuous and sensitive to changes in prey abundance. To determine whether fluctuations in population sizes are localised or indicative of large-scale ecosystem change, we must first understand population structure and dispersal. King penguins are long-lived seabirds that occupy a niche across the sub-Antarctic zone close to the Polar Front. Colonies have very different histories of exploitation, population recovery, and expansion. Results: We investigated the genetic population structure and patterns of colonisation of king penguins across their current range using a dataset of 5154 unlinked, high-coverage single nucleotide polymorphisms generated via restriction site associated DNA sequencing (RADSeq). Despite breeding at a small number of discrete, geographically separate sites, we find only very slight genetic differentiation among colonies separated by thousands of kilometers of open-ocean, suggesting migration among islands and archipelagos may be common. Our results show that the South Georgia population is slightly differentiated from all other colonies and suggest that the recently founded Falkland Island colony is likely to have been established by migrants from the distant Crozet Islands rather than nearby colonies on South Georgia, possibly as a result of density-dependent processes. Conclusions: The observed subtle differentiation among king penguin colonies must be considered in future conservation planning and monitoring of the species, and demographic models that attempt to forecast extinction risk in response to large-scale climate change must take into account migration. It is possible that migration could buffer king penguins against some of the impacts of climate change where colonies appear panmictic, although it is unlikely to protect them completely given the widespread physical changes projected for their Southern Ocean foraging grounds. Overall, ... Other/Unknown Material Antarc* Antarctic Crozet Islands King Penguins Southern Ocean Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Antarctic Southern Ocean |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Clucas, Gemma V. Younger, Jane L. Kao, Damian Rogers, Alex D. Handley, Jonathan Miller, Gary D. Jouventin, Pierre Nolan, Paul Gharbi, Karim Miller, Karen J. Hart, Tom Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
topic_facet |
Life sciences medicine and health care |
description |
Background: Seabirds are important components of marine ecosystems, both as predators and as indicators of ecological change, being conspicuous and sensitive to changes in prey abundance. To determine whether fluctuations in population sizes are localised or indicative of large-scale ecosystem change, we must first understand population structure and dispersal. King penguins are long-lived seabirds that occupy a niche across the sub-Antarctic zone close to the Polar Front. Colonies have very different histories of exploitation, population recovery, and expansion. Results: We investigated the genetic population structure and patterns of colonisation of king penguins across their current range using a dataset of 5154 unlinked, high-coverage single nucleotide polymorphisms generated via restriction site associated DNA sequencing (RADSeq). Despite breeding at a small number of discrete, geographically separate sites, we find only very slight genetic differentiation among colonies separated by thousands of kilometers of open-ocean, suggesting migration among islands and archipelagos may be common. Our results show that the South Georgia population is slightly differentiated from all other colonies and suggest that the recently founded Falkland Island colony is likely to have been established by migrants from the distant Crozet Islands rather than nearby colonies on South Georgia, possibly as a result of density-dependent processes. Conclusions: The observed subtle differentiation among king penguin colonies must be considered in future conservation planning and monitoring of the species, and demographic models that attempt to forecast extinction risk in response to large-scale climate change must take into account migration. It is possible that migration could buffer king penguins against some of the impacts of climate change where colonies appear panmictic, although it is unlikely to protect them completely given the widespread physical changes projected for their Southern Ocean foraging grounds. Overall, ... |
author |
Clucas, Gemma V. Younger, Jane L. Kao, Damian Rogers, Alex D. Handley, Jonathan Miller, Gary D. Jouventin, Pierre Nolan, Paul Gharbi, Karim Miller, Karen J. Hart, Tom |
author_facet |
Clucas, Gemma V. Younger, Jane L. Kao, Damian Rogers, Alex D. Handley, Jonathan Miller, Gary D. Jouventin, Pierre Nolan, Paul Gharbi, Karim Miller, Karen J. Hart, Tom |
author_sort |
Clucas, Gemma V. |
title |
Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
title_short |
Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
title_full |
Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
title_fullStr |
Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
title_full_unstemmed |
Data from: Dispersal in the sub-Antarctic: king penguins show remarkably little population genetic differentiation across their range |
title_sort |
data from: dispersal in the sub-antarctic: king penguins show remarkably little population genetic differentiation across their range |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-0o-gwbq https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95639 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Crozet Islands King Penguins Southern Ocean |
genre_facet |
Antarc* Antarctic Crozet Islands King Penguins Southern Ocean |
op_relation |
doi:10.5061/dryad.7c0q8/1 doi:10.5061/dryad.7c0q8/2 doi:10.5061/dryad.7c0q8/3 doi:10.1186/s12862-016-0784-z PMID:27733109 http://nbn-resolving.org/urn:nbn:nl:ui:13-0o-gwbq doi:10.5061/dryad.7c0q8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:95639 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.7c0q8/110.5061/dryad.7c0q8/210.5061/dryad.7c0q8/310.1186/s12862-016-0784-z10.5061/dryad.7c0q8 |
_version_ |
1770274415414607872 |