Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea
Abstract I consider the possibility of selection favouring large body size in a population of snow petrels (Pagodroma nivea), a long-lived seabird species. I measured natural selection on body size traits in a population from 1987 to 1998. There was evidence of selection on body size associated with...
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Oxford University Press (OUP)
1999
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Online Access: | http://dx.doi.org/10.1046/j.1420-9101.2000.00151.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2000.00151.x https://academic.oup.com/jeb/article-pdf/13/1/81/54432249/j.1420-9101.2000.00151.x.pdf |
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croxfordunivpr:10.1046/j.1420-9101.2000.00151.x 2024-02-11T10:08:35+01:00 Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea Barbraud 1999 http://dx.doi.org/10.1046/j.1420-9101.2000.00151.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2000.00151.x https://academic.oup.com/jeb/article-pdf/13/1/81/54432249/j.1420-9101.2000.00151.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 13, issue 1, page 81-88 ISSN 1010-061X 1420-9101 Ecology, Evolution, Behavior and Systematics journal-article 1999 croxfordunivpr https://doi.org/10.1046/j.1420-9101.2000.00151.x 2024-01-12T09:25:46Z Abstract I consider the possibility of selection favouring large body size in a population of snow petrels (Pagodroma nivea), a long-lived seabird species. I measured natural selection on body size traits in a population from 1987 to 1998. There was evidence of selection on body size associated with fecundity and survival. Directional selection on bill length and stabilizing selection on tarsus length associated with reproductive success were detected among males. Selection associated with survival favoured males with longer bills. However, selection was weak in all cases. No evidence of selection acting on female body size traits was detected. Offspring–parents regression suggested that bill length and tarsus length were heritable. Although I was able to identify the targets of selection in this population, I could not demonstrate the ecological implications of both tarsus length and bill length variation. The selection on male, but not on female, body size traits suggests factors such as intrasexual competition for nests and/or mates rather than factors such as feeding efficiency as mechanisms of selection on bill size. Article in Journal/Newspaper Snow Petrel Snow Petrels Oxford University Press Nivea ENVELOPE(-45.479,-45.479,-60.580,-60.580) Journal of Evolutionary Biology 13 1 81 88 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Barbraud Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract I consider the possibility of selection favouring large body size in a population of snow petrels (Pagodroma nivea), a long-lived seabird species. I measured natural selection on body size traits in a population from 1987 to 1998. There was evidence of selection on body size associated with fecundity and survival. Directional selection on bill length and stabilizing selection on tarsus length associated with reproductive success were detected among males. Selection associated with survival favoured males with longer bills. However, selection was weak in all cases. No evidence of selection acting on female body size traits was detected. Offspring–parents regression suggested that bill length and tarsus length were heritable. Although I was able to identify the targets of selection in this population, I could not demonstrate the ecological implications of both tarsus length and bill length variation. The selection on male, but not on female, body size traits suggests factors such as intrasexual competition for nests and/or mates rather than factors such as feeding efficiency as mechanisms of selection on bill size. |
format |
Article in Journal/Newspaper |
author |
Barbraud |
author_facet |
Barbraud |
author_sort |
Barbraud |
title |
Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
title_short |
Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
title_full |
Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
title_fullStr |
Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
title_full_unstemmed |
Natural selection on body size traits in a long-lived bird, the snow petrel Pagodroma nivea |
title_sort |
natural selection on body size traits in a long-lived bird, the snow petrel pagodroma nivea |
publisher |
Oxford University Press (OUP) |
publishDate |
1999 |
url |
http://dx.doi.org/10.1046/j.1420-9101.2000.00151.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2000.00151.x https://academic.oup.com/jeb/article-pdf/13/1/81/54432249/j.1420-9101.2000.00151.x.pdf |
long_lat |
ENVELOPE(-45.479,-45.479,-60.580,-60.580) |
geographic |
Nivea |
geographic_facet |
Nivea |
genre |
Snow Petrel Snow Petrels |
genre_facet |
Snow Petrel Snow Petrels |
op_source |
Journal of Evolutionary Biology volume 13, issue 1, page 81-88 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.1420-9101.2000.00151.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
13 |
container_issue |
1 |
container_start_page |
81 |
op_container_end_page |
88 |
_version_ |
1790607996296888320 |