Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus)
Molecular studies of pinniped breeding systems exhibit a broad range of agreement and disagreement with observational indices of male breeding success. Grey seal studies have reported considerable discrepancies between genetic and behavioural paternity measures that have been interpreted as evidence...
Published in: | Molecular Ecology |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2006
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/finding-fathers--spatiotemporal-analysis-of-paternity-assignment-in-grey-seals-halichoerus-grypus(5adc8735-d3fa-4d62-8886-864045a905a4).html https://doi.org/10.1111/j.1365-294X.2006.02927.x http://www.scopus.com/inward/record.url?scp=33646595628&partnerID=8YFLogxK |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/5adc8735-d3fa-4d62-8886-864045a905a4 2023-05-15T15:23:12+02:00 Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) Twiss, SD Graves, Jefferson Alden Poland, VF Pomeroy, Patrick 2006-06 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/finding-fathers--spatiotemporal-analysis-of-paternity-assignment-in-grey-seals-halichoerus-grypus(5adc8735-d3fa-4d62-8886-864045a905a4).html https://doi.org/10.1111/j.1365-294X.2006.02927.x http://www.scopus.com/inward/record.url?scp=33646595628&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Twiss , SD , Graves , J A , Poland , VF & Pomeroy , P 2006 , ' Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) ' , Molecular Ecology , vol. 15 , pp. 1939-1953 . https://doi.org/10.1111/j.1365-294X.2006.02927.x mate choice microsatellites paternity analyses pinniped reproductive success spatial analysis MALE MATING SUCCESS NORTH-RONA GRAY SEAL ARCTOCEPHALUS-GAZELLA PHOCA-VITULINA ELEPHANT SEALS SITE FIDELITY SCOTLAND BEHAVIOR article 2006 ftunstandrewcris https://doi.org/10.1111/j.1365-294X.2006.02927.x 2021-12-26T14:13:54Z Molecular studies of pinniped breeding systems exhibit a broad range of agreement and disagreement with observational indices of male breeding success. Grey seal studies have reported considerable discrepancies between genetic and behavioural paternity measures that have been interpreted as evidence of previously unidentified male strategies and/or tactics. Therefore, these studies have the power to fundamentally alter our perceptions of mating systems. However, other pinniped studies exhibit no such disagreements, and one possible explanation for disparities may be sampling biases in space and time. Therefore, it is essential that potential sampling biases are examined to evaluate the likelihood of previously unidentified male strategies. We examined paternities assigned at the North Rona grey seal colony between 1999 and 2002 in relation to concurrent detailed behavioural and locational data for males and females. We found that (i) for females observed in sexual interaction(s) during their oestrus period, it was highly probable that one of the interacting males fathered their next pup; (ii) over 80% of assigned paternities agreed with observations of the in-colony behaviour and spatio-temporal proximity of the males and females involved; and (iii) a minority of females exhibit mate choice and seek sires outside their local male's home range, although evidence suggests that these females mate on the colony rather than at sea. In conclusion, nearly all paternities assigned agreed with expectation based upon detailed knowledge of the spatio-temporal patterns of individuals during the breeding season. We found little evidence of unidentified male strategies at North Rona, Scotland, whereas further examination of mechanisms of female choice may be productive. Article in Journal/Newspaper Arctocephalus gazella Elephant Seals Phoca vitulina University of St Andrews: Research Portal Rona ENVELOPE(13.943,13.943,66.985,66.985) Molecular Ecology 15 7 1939 1953 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
mate choice microsatellites paternity analyses pinniped reproductive success spatial analysis MALE MATING SUCCESS NORTH-RONA GRAY SEAL ARCTOCEPHALUS-GAZELLA PHOCA-VITULINA ELEPHANT SEALS SITE FIDELITY SCOTLAND BEHAVIOR |
spellingShingle |
mate choice microsatellites paternity analyses pinniped reproductive success spatial analysis MALE MATING SUCCESS NORTH-RONA GRAY SEAL ARCTOCEPHALUS-GAZELLA PHOCA-VITULINA ELEPHANT SEALS SITE FIDELITY SCOTLAND BEHAVIOR Twiss, SD Graves, Jefferson Alden Poland, VF Pomeroy, Patrick Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
topic_facet |
mate choice microsatellites paternity analyses pinniped reproductive success spatial analysis MALE MATING SUCCESS NORTH-RONA GRAY SEAL ARCTOCEPHALUS-GAZELLA PHOCA-VITULINA ELEPHANT SEALS SITE FIDELITY SCOTLAND BEHAVIOR |
description |
Molecular studies of pinniped breeding systems exhibit a broad range of agreement and disagreement with observational indices of male breeding success. Grey seal studies have reported considerable discrepancies between genetic and behavioural paternity measures that have been interpreted as evidence of previously unidentified male strategies and/or tactics. Therefore, these studies have the power to fundamentally alter our perceptions of mating systems. However, other pinniped studies exhibit no such disagreements, and one possible explanation for disparities may be sampling biases in space and time. Therefore, it is essential that potential sampling biases are examined to evaluate the likelihood of previously unidentified male strategies. We examined paternities assigned at the North Rona grey seal colony between 1999 and 2002 in relation to concurrent detailed behavioural and locational data for males and females. We found that (i) for females observed in sexual interaction(s) during their oestrus period, it was highly probable that one of the interacting males fathered their next pup; (ii) over 80% of assigned paternities agreed with observations of the in-colony behaviour and spatio-temporal proximity of the males and females involved; and (iii) a minority of females exhibit mate choice and seek sires outside their local male's home range, although evidence suggests that these females mate on the colony rather than at sea. In conclusion, nearly all paternities assigned agreed with expectation based upon detailed knowledge of the spatio-temporal patterns of individuals during the breeding season. We found little evidence of unidentified male strategies at North Rona, Scotland, whereas further examination of mechanisms of female choice may be productive. |
format |
Article in Journal/Newspaper |
author |
Twiss, SD Graves, Jefferson Alden Poland, VF Pomeroy, Patrick |
author_facet |
Twiss, SD Graves, Jefferson Alden Poland, VF Pomeroy, Patrick |
author_sort |
Twiss, SD |
title |
Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
title_short |
Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
title_full |
Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
title_fullStr |
Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
title_full_unstemmed |
Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) |
title_sort |
finding fathers - spatio-temporal analysis of paternity assignment in grey seals (halichoerus grypus) |
publishDate |
2006 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/finding-fathers--spatiotemporal-analysis-of-paternity-assignment-in-grey-seals-halichoerus-grypus(5adc8735-d3fa-4d62-8886-864045a905a4).html https://doi.org/10.1111/j.1365-294X.2006.02927.x http://www.scopus.com/inward/record.url?scp=33646595628&partnerID=8YFLogxK |
long_lat |
ENVELOPE(13.943,13.943,66.985,66.985) |
geographic |
Rona |
geographic_facet |
Rona |
genre |
Arctocephalus gazella Elephant Seals Phoca vitulina |
genre_facet |
Arctocephalus gazella Elephant Seals Phoca vitulina |
op_source |
Twiss , SD , Graves , J A , Poland , VF & Pomeroy , P 2006 , ' Finding fathers - spatio-temporal analysis of paternity assignment in grey seals (Halichoerus grypus) ' , Molecular Ecology , vol. 15 , pp. 1939-1953 . https://doi.org/10.1111/j.1365-294X.2006.02927.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1365-294X.2006.02927.x |
container_title |
Molecular Ecology |
container_volume |
15 |
container_issue |
7 |
container_start_page |
1939 |
op_container_end_page |
1953 |
_version_ |
1766353915421392896 |