Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies
Increasing evidence suggests foraging segregation as a key mechanism promoting genetic divergence within seabird species. However, testing for a relationship between population genetic structure and foraging movements among seabird colonies can be challenging. Telemetry studies suggest that Flesh-fo...
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Online Access: | https://doi.org/10.1007/s10592-017-0994-y http://ecite.utas.edu.au/118340 |
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ftunivtasecite:oai:ecite.utas.edu.au:118340 2023-05-15T18:08:20+02:00 Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies Lombal, AJ Wenner, TJ Lavers, JL Austin, JJ Woehler, EJ Hutton, I Burridge, CP 2018 https://doi.org/10.1007/s10592-017-0994-y http://ecite.utas.edu.au/118340 en eng Kluwer Academic Publ http://dx.doi.org/10.1007/s10592-017-0994-y Lombal, AJ and Wenner, TJ and Lavers, JL and Austin, JJ and Woehler, EJ and Hutton, I and Burridge, CP, Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies, Conservation Genetics, 19, (1) pp. 27-41. ISSN 1566-0621 (2018) [Refereed Article] http://ecite.utas.edu.au/118340 Environmental Sciences Environmental management Conservation and biodiversity Refereed Article PeerReviewed 2018 ftunivtasecite https://doi.org/10.1007/s10592-017-0994-y 2022-08-29T22:17:06Z Increasing evidence suggests foraging segregation as a key mechanism promoting genetic divergence within seabird species. However, testing for a relationship between population genetic structure and foraging movements among seabird colonies can be challenging. Telemetry studies suggest that Flesh-footed Shearwater Ardenna carneipes that breed at Lord Howe Island or New Zealand, versus southwestern Australia or Saint-Paul Island in the Indian Ocean, migrate to different regions (North Pacific Ocean and northern Indian Ocean, respectively) during the non-breeding season, which may inhibit gene flow among colonies. In this study, we sequenced a 858-base pair mitochondrial region and seven nuclear DNA fragments (352654bp) for 148 individuals to test genetic differentiation among colonies of Flesh-footed Shearwaters. Strong genetic divergence was detected between Pacific colonies relative to those further West. Molecular analysis of fisheries bycatch individuals sampled in the Sea of Japan indicated that individuals from both western and eastern colonies were migrating through this area, and hence the apparent segregation of the non-breeding distribution based on telemetry is invalid and cannot contribute to the population genetic structure among colonies. The genetic divergence among colonies is better explained by philopatry and evidence of differences in foraging strategies during the breeding season, as supported by the observed genetic divergence between Lord Howe Island and New Zealand colonies. We suggest molecular analysis of fisheries bycatch individuals as a rigorous method to identify foraging segregation, and we recommend the eastern and western A. carneipes colonies be regarded as different Management Units. Article in Journal/Newspaper Saint-Paul Island eCite UTAS (University of Tasmania) Pacific Indian New Zealand Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) Conservation Genetics 19 1 27 41 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental management Conservation and biodiversity |
spellingShingle |
Environmental Sciences Environmental management Conservation and biodiversity Lombal, AJ Wenner, TJ Lavers, JL Austin, JJ Woehler, EJ Hutton, I Burridge, CP Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
topic_facet |
Environmental Sciences Environmental management Conservation and biodiversity |
description |
Increasing evidence suggests foraging segregation as a key mechanism promoting genetic divergence within seabird species. However, testing for a relationship between population genetic structure and foraging movements among seabird colonies can be challenging. Telemetry studies suggest that Flesh-footed Shearwater Ardenna carneipes that breed at Lord Howe Island or New Zealand, versus southwestern Australia or Saint-Paul Island in the Indian Ocean, migrate to different regions (North Pacific Ocean and northern Indian Ocean, respectively) during the non-breeding season, which may inhibit gene flow among colonies. In this study, we sequenced a 858-base pair mitochondrial region and seven nuclear DNA fragments (352654bp) for 148 individuals to test genetic differentiation among colonies of Flesh-footed Shearwaters. Strong genetic divergence was detected between Pacific colonies relative to those further West. Molecular analysis of fisheries bycatch individuals sampled in the Sea of Japan indicated that individuals from both western and eastern colonies were migrating through this area, and hence the apparent segregation of the non-breeding distribution based on telemetry is invalid and cannot contribute to the population genetic structure among colonies. The genetic divergence among colonies is better explained by philopatry and evidence of differences in foraging strategies during the breeding season, as supported by the observed genetic divergence between Lord Howe Island and New Zealand colonies. We suggest molecular analysis of fisheries bycatch individuals as a rigorous method to identify foraging segregation, and we recommend the eastern and western A. carneipes colonies be regarded as different Management Units. |
format |
Article in Journal/Newspaper |
author |
Lombal, AJ Wenner, TJ Lavers, JL Austin, JJ Woehler, EJ Hutton, I Burridge, CP |
author_facet |
Lombal, AJ Wenner, TJ Lavers, JL Austin, JJ Woehler, EJ Hutton, I Burridge, CP |
author_sort |
Lombal, AJ |
title |
Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
title_short |
Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
title_full |
Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
title_fullStr |
Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
title_full_unstemmed |
Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies |
title_sort |
genetic divergence between colonies of flesh-footed shearwater ardenna carneipes exhibiting different foraging strategies |
publisher |
Kluwer Academic Publ |
publishDate |
2018 |
url |
https://doi.org/10.1007/s10592-017-0994-y http://ecite.utas.edu.au/118340 |
long_lat |
ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Pacific Indian New Zealand Saint-Paul |
geographic_facet |
Pacific Indian New Zealand Saint-Paul |
genre |
Saint-Paul Island |
genre_facet |
Saint-Paul Island |
op_relation |
http://dx.doi.org/10.1007/s10592-017-0994-y Lombal, AJ and Wenner, TJ and Lavers, JL and Austin, JJ and Woehler, EJ and Hutton, I and Burridge, CP, Genetic divergence between colonies of flesh-footed shearwater Ardenna carneipes exhibiting different foraging strategies, Conservation Genetics, 19, (1) pp. 27-41. ISSN 1566-0621 (2018) [Refereed Article] http://ecite.utas.edu.au/118340 |
op_doi |
https://doi.org/10.1007/s10592-017-0994-y |
container_title |
Conservation Genetics |
container_volume |
19 |
container_issue |
1 |
container_start_page |
27 |
op_container_end_page |
41 |
_version_ |
1766180630792503296 |