Paternity assignment and demographic closure in the New Zealand southern right whale
The identification and characterization of reproductively isolated subpopulations or stocks are essential for effective conservation and management decisions. This can be difficult in vagile marine species like marine mammals. We used paternity assignment and gametic recapture to examine the reprodu...
Published in: | Molecular Ecology |
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Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2012
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/paternity-assignment-and-demographic-closure-in-the-new-zealand-southern-right-whale(a21d7a44-a9e3-4b2b-b96c-ba3cbf82060a).html https://doi.org/10.1111/j.1365-294X.2012.05676.x |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/a21d7a44-a9e3-4b2b-b96c-ba3cbf82060a 2023-05-15T17:10:52+02:00 Paternity assignment and demographic closure in the New Zealand southern right whale Carroll, Emma L. Childerhouse, Simon J. Christie, Mark Lavery, Shane Patenaude, Nathalie Alexander, Alana Constantine, Rochelle Steel, Debbie Boren, Laura Baker, C. Scott 2012-08 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/paternity-assignment-and-demographic-closure-in-the-new-zealand-southern-right-whale(a21d7a44-a9e3-4b2b-b96c-ba3cbf82060a).html https://doi.org/10.1111/j.1365-294X.2012.05676.x eng eng info:eu-repo/semantics/restrictedAccess Carroll , E L , Childerhouse , S J , Christie , M , Lavery , S , Patenaude , N , Alexander , A , Constantine , R , Steel , D , Boren , L & Baker , C S 2012 , ' Paternity assignment and demographic closure in the New Zealand southern right whale ' , Molecular Ecology , vol. 21 , no. 16 , pp. 3960-3973 . https://doi.org/10.1111/j.1365-294X.2012.05676.x gametic mark recapture geneflow population structure SEX-BIASED DISPERSAL MALE REPRODUCTIVE SUCCESS ATLANTIC RIGHT WHALE HUMPBACK WHALES POPULATION-STRUCTURE NATURAL-POPULATIONS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE EUBALAENA-AUSTRALIS WINTERING GROUNDS article 2012 ftunstandrewcris https://doi.org/10.1111/j.1365-294X.2012.05676.x 2022-10-31T06:43:35Z The identification and characterization of reproductively isolated subpopulations or stocks are essential for effective conservation and management decisions. This can be difficult in vagile marine species like marine mammals. We used paternity assignment and gametic recapture to examine the reproductive autonomy of southern right whales (Eubalaena australis) on their New Zealand (NZ) calving grounds. We derived DNA profiles for 34 mothercalf pairs from skin biopsy samples, using sex-specific markers, 13 microsatellite loci and mtDNA haplotypes. We constructed DNA profiles for 314 adult males, representing 30% of the census male abundance of the NZ stock, previously estimated from genotypic mark-recapture modelling to be 1085 (95% CL 855, 1416). Under the hypothesis of demographic closure and the assumption of equal reproductive success among males, we predict: (i) the proportion of paternities assigned will reflect the proportion of the male population sampled and (ii) the gametic markrecapture (GMR) estimate of male abundance will be equivalent to the census male estimate for the NZ stock. Consistent with these predictions, we found that the proportion of assigned paternities equalled the proportion of the census male population size sampled. Using the sample of males as the initial capture, and paternity assignment as the recapture, the GMR estimate of male abundance was 1001 (95% CL 542, 1469), similar to the male census estimate. These findings suggest that right whales returning to the NZ calving ground are reproductively autonomous on a generational timescale, as well as isolated by maternal fidelity on an evolutionary timescale, from others in the Indo-Pacific region. Article in Journal/Newspaper Megaptera novaeangliae Southern Right Whale University of St Andrews: Research Portal New Zealand Pacific Molecular Ecology 21 16 3960 3973 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
gametic mark recapture geneflow population structure SEX-BIASED DISPERSAL MALE REPRODUCTIVE SUCCESS ATLANTIC RIGHT WHALE HUMPBACK WHALES POPULATION-STRUCTURE NATURAL-POPULATIONS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE EUBALAENA-AUSTRALIS WINTERING GROUNDS |
spellingShingle |
gametic mark recapture geneflow population structure SEX-BIASED DISPERSAL MALE REPRODUCTIVE SUCCESS ATLANTIC RIGHT WHALE HUMPBACK WHALES POPULATION-STRUCTURE NATURAL-POPULATIONS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE EUBALAENA-AUSTRALIS WINTERING GROUNDS Carroll, Emma L. Childerhouse, Simon J. Christie, Mark Lavery, Shane Patenaude, Nathalie Alexander, Alana Constantine, Rochelle Steel, Debbie Boren, Laura Baker, C. Scott Paternity assignment and demographic closure in the New Zealand southern right whale |
topic_facet |
gametic mark recapture geneflow population structure SEX-BIASED DISPERSAL MALE REPRODUCTIVE SUCCESS ATLANTIC RIGHT WHALE HUMPBACK WHALES POPULATION-STRUCTURE NATURAL-POPULATIONS MICROSATELLITE LOCI MEGAPTERA-NOVAEANGLIAE EUBALAENA-AUSTRALIS WINTERING GROUNDS |
description |
The identification and characterization of reproductively isolated subpopulations or stocks are essential for effective conservation and management decisions. This can be difficult in vagile marine species like marine mammals. We used paternity assignment and gametic recapture to examine the reproductive autonomy of southern right whales (Eubalaena australis) on their New Zealand (NZ) calving grounds. We derived DNA profiles for 34 mothercalf pairs from skin biopsy samples, using sex-specific markers, 13 microsatellite loci and mtDNA haplotypes. We constructed DNA profiles for 314 adult males, representing 30% of the census male abundance of the NZ stock, previously estimated from genotypic mark-recapture modelling to be 1085 (95% CL 855, 1416). Under the hypothesis of demographic closure and the assumption of equal reproductive success among males, we predict: (i) the proportion of paternities assigned will reflect the proportion of the male population sampled and (ii) the gametic markrecapture (GMR) estimate of male abundance will be equivalent to the census male estimate for the NZ stock. Consistent with these predictions, we found that the proportion of assigned paternities equalled the proportion of the census male population size sampled. Using the sample of males as the initial capture, and paternity assignment as the recapture, the GMR estimate of male abundance was 1001 (95% CL 542, 1469), similar to the male census estimate. These findings suggest that right whales returning to the NZ calving ground are reproductively autonomous on a generational timescale, as well as isolated by maternal fidelity on an evolutionary timescale, from others in the Indo-Pacific region. |
format |
Article in Journal/Newspaper |
author |
Carroll, Emma L. Childerhouse, Simon J. Christie, Mark Lavery, Shane Patenaude, Nathalie Alexander, Alana Constantine, Rochelle Steel, Debbie Boren, Laura Baker, C. Scott |
author_facet |
Carroll, Emma L. Childerhouse, Simon J. Christie, Mark Lavery, Shane Patenaude, Nathalie Alexander, Alana Constantine, Rochelle Steel, Debbie Boren, Laura Baker, C. Scott |
author_sort |
Carroll, Emma L. |
title |
Paternity assignment and demographic closure in the New Zealand southern right whale |
title_short |
Paternity assignment and demographic closure in the New Zealand southern right whale |
title_full |
Paternity assignment and demographic closure in the New Zealand southern right whale |
title_fullStr |
Paternity assignment and demographic closure in the New Zealand southern right whale |
title_full_unstemmed |
Paternity assignment and demographic closure in the New Zealand southern right whale |
title_sort |
paternity assignment and demographic closure in the new zealand southern right whale |
publishDate |
2012 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/paternity-assignment-and-demographic-closure-in-the-new-zealand-southern-right-whale(a21d7a44-a9e3-4b2b-b96c-ba3cbf82060a).html https://doi.org/10.1111/j.1365-294X.2012.05676.x |
geographic |
New Zealand Pacific |
geographic_facet |
New Zealand Pacific |
genre |
Megaptera novaeangliae Southern Right Whale |
genre_facet |
Megaptera novaeangliae Southern Right Whale |
op_source |
Carroll , E L , Childerhouse , S J , Christie , M , Lavery , S , Patenaude , N , Alexander , A , Constantine , R , Steel , D , Boren , L & Baker , C S 2012 , ' Paternity assignment and demographic closure in the New Zealand southern right whale ' , Molecular Ecology , vol. 21 , no. 16 , pp. 3960-3973 . https://doi.org/10.1111/j.1365-294X.2012.05676.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1365-294X.2012.05676.x |
container_title |
Molecular Ecology |
container_volume |
21 |
container_issue |
16 |
container_start_page |
3960 |
op_container_end_page |
3973 |
_version_ |
1766067528782577664 |