Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua )
Abstract Little evidence of benefits from female mate choice has been found when males provide no parental care or resources. Yet, good genes models of sexual selection suggest that elaborated male sexual characters are reliable signals of mate quality and that the offspring of males with elaborate...
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crwiley:10.1111/j.1420-9101.2004.00778.x 2023-12-03T10:19:02+01:00 Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) Rudolfsen, G. Figenschou, L. Folstad, I. Nordeide, J. T. Søreng, E. 2005 http://dx.doi.org/10.1111/j.1420-9101.2004.00778.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1420-9101.2004.00778.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1420-9101.2004.00778.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Evolutionary Biology volume 18, issue 1, page 172-179 ISSN 1010-061X 1420-9101 Ecology, Evolution, Behavior and Systematics journal-article 2005 crwiley https://doi.org/10.1111/j.1420-9101.2004.00778.x 2023-11-09T13:30:53Z Abstract Little evidence of benefits from female mate choice has been found when males provide no parental care or resources. Yet, good genes models of sexual selection suggest that elaborated male sexual characters are reliable signals of mate quality and that the offspring of males with elaborate sexual ornaments will perform better than those of males with less elaborate ornaments. We used cod ( Gadus morhua L.), an externally fertilizing species where males provide nothing but sperm, to examine the potential of optimal mate selection with respect to offspring survival. By applying in vitro fertilizations, we crossed eight females with nine males in all possible combinations and reared each of the 72 sib groups. We found that offspring survival was dependent on which female was mated with which male and that optimal mate selection has the potential to increase mean offspring survival from 31.9 to 55.6% (a 74% increase). However, the size of the male sexual ornaments and sperm quality (i.e. sperm velocity and sperm density) could not predict offspring survival. Thus, even if there may be large fitness benefits of mate selection, we might not yet have identified the male characteristics generating high offspring survival. Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library (via Crossref) Journal of Evolutionary Biology 18 1 172 179 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Rudolfsen, G. Figenschou, L. Folstad, I. Nordeide, J. T. Søreng, E. Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Abstract Little evidence of benefits from female mate choice has been found when males provide no parental care or resources. Yet, good genes models of sexual selection suggest that elaborated male sexual characters are reliable signals of mate quality and that the offspring of males with elaborate sexual ornaments will perform better than those of males with less elaborate ornaments. We used cod ( Gadus morhua L.), an externally fertilizing species where males provide nothing but sperm, to examine the potential of optimal mate selection with respect to offspring survival. By applying in vitro fertilizations, we crossed eight females with nine males in all possible combinations and reared each of the 72 sib groups. We found that offspring survival was dependent on which female was mated with which male and that optimal mate selection has the potential to increase mean offspring survival from 31.9 to 55.6% (a 74% increase). However, the size of the male sexual ornaments and sperm quality (i.e. sperm velocity and sperm density) could not predict offspring survival. Thus, even if there may be large fitness benefits of mate selection, we might not yet have identified the male characteristics generating high offspring survival. |
format |
Article in Journal/Newspaper |
author |
Rudolfsen, G. Figenschou, L. Folstad, I. Nordeide, J. T. Søreng, E. |
author_facet |
Rudolfsen, G. Figenschou, L. Folstad, I. Nordeide, J. T. Søreng, E. |
author_sort |
Rudolfsen, G. |
title |
Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
title_short |
Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
title_full |
Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
title_fullStr |
Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
title_full_unstemmed |
Potential fitness benefits from mate selection in the Atlantic cod ( Gadus morhua ) |
title_sort |
potential fitness benefits from mate selection in the atlantic cod ( gadus morhua ) |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1420-9101.2004.00778.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1420-9101.2004.00778.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1420-9101.2004.00778.x |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Journal of Evolutionary Biology volume 18, issue 1, page 172-179 ISSN 1010-061X 1420-9101 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1420-9101.2004.00778.x |
container_title |
Journal of Evolutionary Biology |
container_volume |
18 |
container_issue |
1 |
container_start_page |
172 |
op_container_end_page |
179 |
_version_ |
1784266174900469760 |