Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi)
Rockhopper penguins are delimited as two species, the northern rockhopper (Eudyptes moseleyi) and the southern rockhopper (E. chrysocome), with the latter comprising two subspecies, the western rockhopper (E. c. chrysocome) and the eastern rockhopper (E. c. filholi). We conducted a phylogeographic s...
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Online Access: | http://hdl.handle.net/10255/dryad.226493 https://doi.org/10.5061/dryad.6c8d45m |
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ftdryad:oai:v1.datadryad.org:10255/dryad.226493 2023-05-15T14:04:12+02:00 Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) Mays, Herman Oehler, David Morrison, Kyle Morales, Ariadna Lycans, Alyssa Perdue, Justin Battley, Phillip Cherel, Yves Chilvers, B Crofts, Sarah Demongin, Laurent Fry, W Hiscock, Jo Kusch, Alejandro Marin, Manuel Poisbleau, Maud Quillfeldt, Petra Raya Rey, Andrea Steinfurth, Antje Thompson, David Weakley, Leonard Argentina Chile Falkland (Malvinas) Islands New Zealand Crozet Tristan da Cunha 2019-08-16T15:28:30Z http://hdl.handle.net/10255/dryad.226493 https://doi.org/10.5061/dryad.6c8d45m unknown doi:10.5061/dryad.6c8d45m/1 doi:10.5061/dryad.6c8d45m/2 doi:10.5061/dryad.6c8d45m/3 doi:10.5061/dryad.6c8d45m/4 doi:10.5061/dryad.6c8d45m/5 doi:10.5061/dryad.6c8d45m/6 doi:10.5061/dryad.6c8d45m/7 doi:10.5061/dryad.6c8d45m/8 doi:10.5061/dryad.6c8d45m/9 doi:10.5061/dryad.6c8d45m/10 doi:10.5061/dryad.6c8d45m/11 doi:10.5061/dryad.6c8d45m/12 doi:10.5061/dryad.6c8d45m http://hdl.handle.net/10255/dryad.226493 Antarctic Circumpolar Current Conservation genetics Migration Southern Ocean Speciation Subtropical front Conservation genetics and biodiversity Population structure and phylogeography Article 2019 ftdryad https://doi.org/10.5061/dryad.6c8d45m https://doi.org/10.5061/dryad.6c8d45m/1 https://doi.org/10.5061/dryad.6c8d45m/2 https://doi.org/10.5061/dryad.6c8d45m/3 https://doi.org/10.5061/dryad.6c8d45m/4 https://doi.org/10.5061/dryad.6c8d45m/5 https 2020-01-01T16:33:53Z Rockhopper penguins are delimited as two species, the northern rockhopper (Eudyptes moseleyi) and the southern rockhopper (E. chrysocome), with the latter comprising two subspecies, the western rockhopper (E. c. chrysocome) and the eastern rockhopper (E. c. filholi). We conducted a phylogeographic study using multilocus data from 114 individuals sampled across 12 colonies from the entire range of the northern/southern rockhopper complex to assess potential population structure, gene flow and species limits. Bayesian and likelihood methods with nuclear and mitochondrial DNA, including model testing and heuristic approaches, support E. moseleyi and E. chrysocome as distinct species lineages with a divergence time of 0.97 Ma. However, these analyses also indicated the presence of gene flow between these species. Among southern rockhopper subspecies, we found evidence of significant gene flow and heuristic approaches to species delimitation based on the genealogical diversity index failed to delimit them as species. The best-supported population models for the southern rockhoppers were those where E. c. chrysocome and E. c. filholi were combined into a single lineage or two lineages with bidirectional gene flow. Additionally, we found that E. c. filholi has the highest effective population size while E. c. chrysocome showed similar effective population size to that of the endangered E. moseleyi. We suggest that the current taxonomic definitions within rockhopper penguins be upheld and that E. chrysocome populations, all found south of the subtropical front, should be treated as a single taxon with distinct management units for E. c. chrysocome and E. c. filholi. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Dryad Digital Repository (Duke University) Antarctic Argentina New Zealand Southern Ocean Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Antarctic Circumpolar Current Conservation genetics Migration Southern Ocean Speciation Subtropical front Conservation genetics and biodiversity Population structure and phylogeography |
spellingShingle |
Antarctic Circumpolar Current Conservation genetics Migration Southern Ocean Speciation Subtropical front Conservation genetics and biodiversity Population structure and phylogeography Mays, Herman Oehler, David Morrison, Kyle Morales, Ariadna Lycans, Alyssa Perdue, Justin Battley, Phillip Cherel, Yves Chilvers, B Crofts, Sarah Demongin, Laurent Fry, W Hiscock, Jo Kusch, Alejandro Marin, Manuel Poisbleau, Maud Quillfeldt, Petra Raya Rey, Andrea Steinfurth, Antje Thompson, David Weakley, Leonard Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
topic_facet |
Antarctic Circumpolar Current Conservation genetics Migration Southern Ocean Speciation Subtropical front Conservation genetics and biodiversity Population structure and phylogeography |
description |
Rockhopper penguins are delimited as two species, the northern rockhopper (Eudyptes moseleyi) and the southern rockhopper (E. chrysocome), with the latter comprising two subspecies, the western rockhopper (E. c. chrysocome) and the eastern rockhopper (E. c. filholi). We conducted a phylogeographic study using multilocus data from 114 individuals sampled across 12 colonies from the entire range of the northern/southern rockhopper complex to assess potential population structure, gene flow and species limits. Bayesian and likelihood methods with nuclear and mitochondrial DNA, including model testing and heuristic approaches, support E. moseleyi and E. chrysocome as distinct species lineages with a divergence time of 0.97 Ma. However, these analyses also indicated the presence of gene flow between these species. Among southern rockhopper subspecies, we found evidence of significant gene flow and heuristic approaches to species delimitation based on the genealogical diversity index failed to delimit them as species. The best-supported population models for the southern rockhoppers were those where E. c. chrysocome and E. c. filholi were combined into a single lineage or two lineages with bidirectional gene flow. Additionally, we found that E. c. filholi has the highest effective population size while E. c. chrysocome showed similar effective population size to that of the endangered E. moseleyi. We suggest that the current taxonomic definitions within rockhopper penguins be upheld and that E. chrysocome populations, all found south of the subtropical front, should be treated as a single taxon with distinct management units for E. c. chrysocome and E. c. filholi. |
format |
Article in Journal/Newspaper |
author |
Mays, Herman Oehler, David Morrison, Kyle Morales, Ariadna Lycans, Alyssa Perdue, Justin Battley, Phillip Cherel, Yves Chilvers, B Crofts, Sarah Demongin, Laurent Fry, W Hiscock, Jo Kusch, Alejandro Marin, Manuel Poisbleau, Maud Quillfeldt, Petra Raya Rey, Andrea Steinfurth, Antje Thompson, David Weakley, Leonard |
author_facet |
Mays, Herman Oehler, David Morrison, Kyle Morales, Ariadna Lycans, Alyssa Perdue, Justin Battley, Phillip Cherel, Yves Chilvers, B Crofts, Sarah Demongin, Laurent Fry, W Hiscock, Jo Kusch, Alejandro Marin, Manuel Poisbleau, Maud Quillfeldt, Petra Raya Rey, Andrea Steinfurth, Antje Thompson, David Weakley, Leonard |
author_sort |
Mays, Herman |
title |
Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
title_short |
Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
title_full |
Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
title_fullStr |
Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
title_full_unstemmed |
Data from: Phylogeography, population structure, and species delimitation in rockhopper penguins (Eudyptes chrysocome and Eudyptes moseleyi) |
title_sort |
data from: phylogeography, population structure, and species delimitation in rockhopper penguins (eudyptes chrysocome and eudyptes moseleyi) |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.226493 https://doi.org/10.5061/dryad.6c8d45m |
op_coverage |
Argentina Chile Falkland (Malvinas) Islands New Zealand Crozet Tristan da Cunha |
long_lat |
ENVELOPE(140.900,140.900,-66.735,-66.735) |
geographic |
Antarctic Argentina New Zealand Southern Ocean Tristan |
geographic_facet |
Antarctic Argentina New Zealand Southern Ocean Tristan |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
doi:10.5061/dryad.6c8d45m/1 doi:10.5061/dryad.6c8d45m/2 doi:10.5061/dryad.6c8d45m/3 doi:10.5061/dryad.6c8d45m/4 doi:10.5061/dryad.6c8d45m/5 doi:10.5061/dryad.6c8d45m/6 doi:10.5061/dryad.6c8d45m/7 doi:10.5061/dryad.6c8d45m/8 doi:10.5061/dryad.6c8d45m/9 doi:10.5061/dryad.6c8d45m/10 doi:10.5061/dryad.6c8d45m/11 doi:10.5061/dryad.6c8d45m/12 doi:10.5061/dryad.6c8d45m http://hdl.handle.net/10255/dryad.226493 |
op_doi |
https://doi.org/10.5061/dryad.6c8d45m https://doi.org/10.5061/dryad.6c8d45m/1 https://doi.org/10.5061/dryad.6c8d45m/2 https://doi.org/10.5061/dryad.6c8d45m/3 https://doi.org/10.5061/dryad.6c8d45m/4 https://doi.org/10.5061/dryad.6c8d45m/5 https |
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