Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae
McCoy, K. D. et al. Recent observations on the western Antarctic Peninsula have suggested that changing climatic conditions may be increasing pressure on breeding seabirds due to higher exploitation rates by the tick Ixodes uriae. Using data from 8 microsatellite markers and ticks from 6 Pygoscelis...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Inter Research
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/123083 https://doi.org/10.3354/meps09749 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100004837 |
id |
ftcsic:oai:digital.csic.es:10261/123083 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/123083 2024-02-11T09:56:45+01:00 Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae McCoy, K. D. Barbosa, Andrés Cuervo, José Javier European Commission Ministerio de Ciencia e Innovación (España) 2012-07-12 http://hdl.handle.net/10261/123083 https://doi.org/10.3354/meps09749 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100004837 unknown Inter Research Publisher's version Sí doi:10.3354/meps09749 issn: 0171-8630 e-issn: 1616-1599 Marine Ecology Progress Series 459: 109-120 (2012) http://hdl.handle.net/10261/123083 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100004837 open artículo http://purl.org/coar/resource_type/c_6501 2012 ftcsic https://doi.org/10.3354/meps0974910.13039/50110000078010.13039/501100004837 2024-01-16T10:11:00Z McCoy, K. D. et al. Recent observations on the western Antarctic Peninsula have suggested that changing climatic conditions may be increasing pressure on breeding seabirds due to higher exploitation rates by the tick Ixodes uriae. Using data from 8 microsatellite markers and ticks from 6 Pygoscelis spp. colonies, we employed a population genetics approach to specifically test the hypothesis that I. uriae is expanding south-westward along the peninsula from the Subantarctic region. Contrary to expectations, tick genetic diversity was high within all colonies, and no remaining signal of colonisation events was evident. Although significant geographic genetic structure occurred among ticks from different colonies, these ectoparasites tended to belong to 2 major genetic groups, one found principally in south-western locations (Palmer Station area) and the other in more north-eastern areas (South Shetland Islands). More central colonies showed a mixture of ticks from each genetic group, suggesting that this area represents a hybridisation zone of ticks from 2 distinct origins. A subsequent clustering analysis, including ticks from 2 Subantarctic locations, did not reveal the source population for the northern peninsula group. Overall, our data refute the hypothesis of a recent south-westward expansion of I. uriae along the peninsula and suggest that this tick has been present at more southern latitudes for an extended period of time. Further studies on the distribution and genetic characteristics of this ectoparasite around Antarctica are now required to better understand the colonisation process and predict how changing environmental conditions may affect its presence and diversity in seabird colonies. © Inter-Research 2012. Financial support was provided by the European Regional Development Fund, the Ministerio de Ciencia e Innovacion from the Spanish Government (Projects POL2006-06635, POL2006-05175, CGL2004-01348, CGL2007-60369, CGL2009-11278/BOS, CMT 2011-24427) and the Agence National de la Recherche, ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica South Shetland Islands Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula McCoy ENVELOPE(-140.533,-140.533,-75.883,-75.883) Palmer Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Palmer-Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) South Shetland Islands Marine Ecology Progress Series 459 109 120 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
McCoy, K. D. et al. Recent observations on the western Antarctic Peninsula have suggested that changing climatic conditions may be increasing pressure on breeding seabirds due to higher exploitation rates by the tick Ixodes uriae. Using data from 8 microsatellite markers and ticks from 6 Pygoscelis spp. colonies, we employed a population genetics approach to specifically test the hypothesis that I. uriae is expanding south-westward along the peninsula from the Subantarctic region. Contrary to expectations, tick genetic diversity was high within all colonies, and no remaining signal of colonisation events was evident. Although significant geographic genetic structure occurred among ticks from different colonies, these ectoparasites tended to belong to 2 major genetic groups, one found principally in south-western locations (Palmer Station area) and the other in more north-eastern areas (South Shetland Islands). More central colonies showed a mixture of ticks from each genetic group, suggesting that this area represents a hybridisation zone of ticks from 2 distinct origins. A subsequent clustering analysis, including ticks from 2 Subantarctic locations, did not reveal the source population for the northern peninsula group. Overall, our data refute the hypothesis of a recent south-westward expansion of I. uriae along the peninsula and suggest that this tick has been present at more southern latitudes for an extended period of time. Further studies on the distribution and genetic characteristics of this ectoparasite around Antarctica are now required to better understand the colonisation process and predict how changing environmental conditions may affect its presence and diversity in seabird colonies. © Inter-Research 2012. Financial support was provided by the European Regional Development Fund, the Ministerio de Ciencia e Innovacion from the Spanish Government (Projects POL2006-06635, POL2006-05175, CGL2004-01348, CGL2007-60369, CGL2009-11278/BOS, CMT 2011-24427) and the Agence National de la Recherche, ... |
author2 |
European Commission Ministerio de Ciencia e Innovación (España) |
format |
Article in Journal/Newspaper |
author |
McCoy, K. D. Barbosa, Andrés Cuervo, José Javier |
spellingShingle |
McCoy, K. D. Barbosa, Andrés Cuervo, José Javier Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
author_facet |
McCoy, K. D. Barbosa, Andrés Cuervo, José Javier |
author_sort |
McCoy, K. D. |
title |
Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
title_short |
Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
title_full |
Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
title_fullStr |
Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
title_full_unstemmed |
Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae |
title_sort |
population genetic structure and colonisation of the western antarctic peninsula by the seabird tick ixodes uriae |
publisher |
Inter Research |
publishDate |
2012 |
url |
http://hdl.handle.net/10261/123083 https://doi.org/10.3354/meps09749 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100004837 |
long_lat |
ENVELOPE(-140.533,-140.533,-75.883,-75.883) ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-64.050,-64.050,-64.770,-64.770) |
geographic |
Antarctic Antarctic Peninsula McCoy Palmer Station Palmer-Station South Shetland Islands |
geographic_facet |
Antarctic Antarctic Peninsula McCoy Palmer Station Palmer-Station South Shetland Islands |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica South Shetland Islands |
op_relation |
Publisher's version Sí doi:10.3354/meps09749 issn: 0171-8630 e-issn: 1616-1599 Marine Ecology Progress Series 459: 109-120 (2012) http://hdl.handle.net/10261/123083 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100004837 |
op_rights |
open |
op_doi |
https://doi.org/10.3354/meps0974910.13039/50110000078010.13039/501100004837 |
container_title |
Marine Ecology Progress Series |
container_volume |
459 |
container_start_page |
109 |
op_container_end_page |
120 |
_version_ |
1790605587308871680 |