Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae
Abstract Due to the close association between parasites and their hosts, many ‘generalist’ parasites have a high potential to become specialized on different host species. We investigated this hypothesis for a common ectoparasite of seabirds, the tick Ixodes uriae that is often found in mixed host s...
Published in: | Journal of Evolutionary Biology |
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Language: | English |
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Oxford University Press (OUP)
2001
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Online Access: | http://dx.doi.org/10.1046/j.1420-9101.2001.00290.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2001.00290.x https://academic.oup.com/jeb/article-pdf/14/3/395/54432104/j.1420-9101.2001.00290.x.pdf |
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croxfordunivpr:10.1046/j.1420-9101.2001.00290.x 2024-09-15T18:07:08+00:00 Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae Mccoy, K. D. Boulinier, T. Tirard, C. Michalakis, Y. 2001 http://dx.doi.org/10.1046/j.1420-9101.2001.00290.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2001.00290.x https://academic.oup.com/jeb/article-pdf/14/3/395/54432104/j.1420-9101.2001.00290.x.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Evolutionary Biology volume 14, issue 3, page 395-405 ISSN 1010-061X 1420-9101 journal-article 2001 croxfordunivpr https://doi.org/10.1046/j.1420-9101.2001.00290.x 2024-08-19T04:23:00Z Abstract Due to the close association between parasites and their hosts, many ‘generalist’ parasites have a high potential to become specialized on different host species. We investigated this hypothesis for a common ectoparasite of seabirds, the tick Ixodes uriae that is often found in mixed host sites. We examined patterns of neutral genetic variation between ticks collected from Black-legged kittiwakes (Rissa tridactyla) and Atlantic puffins (Fratercula arctica) in sympatry. To control for a potential distance effect, values were compared to differences among ticks from the same host in nearby monospecific sites. As predicted, there was higher genetic differentiation between ticks from different sympatric host species than between ticks from nearby allopatric populations of the same host species. Patterns suggesting isolation by distance were found among tick populations of each host group, but no such patterns existed between tick populations of different hosts. Overall, results suggest that host-related selection pressures have led to the specialization of I. uriae and that host race formation may be an important diversifying mechanism in parasites. Article in Journal/Newspaper fratercula Fratercula arctica rissa tridactyla Oxford University Press Journal of Evolutionary Biology 14 3 395 405 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Due to the close association between parasites and their hosts, many ‘generalist’ parasites have a high potential to become specialized on different host species. We investigated this hypothesis for a common ectoparasite of seabirds, the tick Ixodes uriae that is often found in mixed host sites. We examined patterns of neutral genetic variation between ticks collected from Black-legged kittiwakes (Rissa tridactyla) and Atlantic puffins (Fratercula arctica) in sympatry. To control for a potential distance effect, values were compared to differences among ticks from the same host in nearby monospecific sites. As predicted, there was higher genetic differentiation between ticks from different sympatric host species than between ticks from nearby allopatric populations of the same host species. Patterns suggesting isolation by distance were found among tick populations of each host group, but no such patterns existed between tick populations of different hosts. Overall, results suggest that host-related selection pressures have led to the specialization of I. uriae and that host race formation may be an important diversifying mechanism in parasites. |
format |
Article in Journal/Newspaper |
author |
Mccoy, K. D. Boulinier, T. Tirard, C. Michalakis, Y. |
spellingShingle |
Mccoy, K. D. Boulinier, T. Tirard, C. Michalakis, Y. Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
author_facet |
Mccoy, K. D. Boulinier, T. Tirard, C. Michalakis, Y. |
author_sort |
Mccoy, K. D. |
title |
Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
title_short |
Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
title_full |
Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
title_fullStr |
Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
title_full_unstemmed |
Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodes uriae |
title_sort |
host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick ixodes uriae |
publisher |
Oxford University Press (OUP) |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.1420-9101.2001.00290.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2001.00290.x https://academic.oup.com/jeb/article-pdf/14/3/395/54432104/j.1420-9101.2001.00290.x.pdf |
genre |
fratercula Fratercula arctica rissa tridactyla |
genre_facet |
fratercula Fratercula arctica rissa tridactyla |
op_source |
Journal of Evolutionary Biology volume 14, issue 3, page 395-405 ISSN 1010-061X 1420-9101 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1420-9101.2001.00290.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
14 |
container_issue |
3 |
container_start_page |
395 |
op_container_end_page |
405 |
_version_ |
1810444510142922752 |