Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance
Abstract We investigated the quantitative genetics of plasticity in resource allocation between survival, growth and reproductive effort in Crassostrea gigas when food abundance varies spatially. Resource allocation shifted from survival to growth and reproductive effort as food abundance increased....
Published in: | Journal of Evolutionary Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2004
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1046/j.1420-9101.2003.00674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2003.00674.x https://academic.oup.com/jeb/article-pdf/17/2/342/54438527/j.1420-9101.2003.00674.x.pdf |
id |
croxfordunivpr:10.1046/j.1420-9101.2003.00674.x |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1046/j.1420-9101.2003.00674.x 2024-09-30T14:33:56+00:00 Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance Ernande, B. Boudry, P. Clobert, J. Haure, J. 2004 http://dx.doi.org/10.1046/j.1420-9101.2003.00674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2003.00674.x https://academic.oup.com/jeb/article-pdf/17/2/342/54438527/j.1420-9101.2003.00674.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 17, issue 2, page 342-356 ISSN 1010-061X 1420-9101 journal-article 2004 croxfordunivpr https://doi.org/10.1046/j.1420-9101.2003.00674.x 2024-09-17T04:31:41Z Abstract We investigated the quantitative genetics of plasticity in resource allocation between survival, growth and reproductive effort in Crassostrea gigas when food abundance varies spatially. Resource allocation shifted from survival to growth and reproductive effort as food abundance increased. An optimality model suggests that this plastic shift may be adaptive. Reproductive effort plasticity and mean survival were highly heritable, whereas for growth, both mean and plasticity had low heritability. The genetic correlations between reproductive effort and both survival and growth were negative in poor treatments, suggesting trade-offs, but positive in rich ones. These sign reversals may reflect genetic variability in resource acquisition, which would only be expressed when food is abundant. Finally, we found positive genetic correlations between reproductive effort plasticity and both growth and survival means. The latter may reflect adaptation of C. gigas to differential sensitivity of fitness to survival, such that genetic variability in survival mean might support genetic variability in reproductive effort plasticity. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Oxford University Press Pacific Journal of Evolutionary Biology 17 2 342 356 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract We investigated the quantitative genetics of plasticity in resource allocation between survival, growth and reproductive effort in Crassostrea gigas when food abundance varies spatially. Resource allocation shifted from survival to growth and reproductive effort as food abundance increased. An optimality model suggests that this plastic shift may be adaptive. Reproductive effort plasticity and mean survival were highly heritable, whereas for growth, both mean and plasticity had low heritability. The genetic correlations between reproductive effort and both survival and growth were negative in poor treatments, suggesting trade-offs, but positive in rich ones. These sign reversals may reflect genetic variability in resource acquisition, which would only be expressed when food is abundant. Finally, we found positive genetic correlations between reproductive effort plasticity and both growth and survival means. The latter may reflect adaptation of C. gigas to differential sensitivity of fitness to survival, such that genetic variability in survival mean might support genetic variability in reproductive effort plasticity. |
format |
Article in Journal/Newspaper |
author |
Ernande, B. Boudry, P. Clobert, J. Haure, J. |
spellingShingle |
Ernande, B. Boudry, P. Clobert, J. Haure, J. Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
author_facet |
Ernande, B. Boudry, P. Clobert, J. Haure, J. |
author_sort |
Ernande, B. |
title |
Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
title_short |
Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
title_full |
Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
title_fullStr |
Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
title_full_unstemmed |
Plasticity in resource allocation based life history traits in the Pacific oyster, Crassostrea gigas. I. Spatial variation in food abundance |
title_sort |
plasticity in resource allocation based life history traits in the pacific oyster, crassostrea gigas. i. spatial variation in food abundance |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1046/j.1420-9101.2003.00674.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1420-9101.2003.00674.x https://academic.oup.com/jeb/article-pdf/17/2/342/54438527/j.1420-9101.2003.00674.x.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Journal of Evolutionary Biology volume 17, issue 2, page 342-356 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.1420-9101.2003.00674.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
17 |
container_issue |
2 |
container_start_page |
342 |
op_container_end_page |
356 |
_version_ |
1811637683836944384 |