The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/45570 |
Resumo: | A clear understanding of population structure is essential for assessing conservation status and implementing management strategies. A small, non-migratory population of humpback whales in the Arabian Sea is classified as "Endangered" on the IUCN Red List of Threatened Species, an assessment constrained by a lack of data, including limited understanding of its relationship to other populations. We analysed 11 microsatellite markers and mitochondrial DNA sequences extracted from 67 Arabian Sea humpback whale tissue samples and compared them to equivalent datasets from the Southern Hemisphere and North Pacific. Results show that the Arabian Sea population is highly distinct; estimates of gene flow and divergence times suggest a Southern Indian Ocean origin but indicate that it has been isolated for approximately 70,000 years, remarkable for a species that is typically highly migratory. Genetic diversity values are significantly lower than those obtained for Southern Hemisphere populations and signatures of ancient and recent genetic bottlenecks were identified. Our findings suggest this is the world's most isolated humpback whale population, which, when combined with low population abundance estimates and anthropogenic threats, raises concern for its survival. We recommend an amendment of the status of the population to "Critically Endangered" on the IUCN Red List. |
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The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian SeaAnimalsBayes TheoremDNA, MitochondrialGenetic VariationHaplotypesHumpback WhaleIndian OceanMicrosatellite RepeatsPhylogenyPolymerase Chain ReactionConservation of Natural ResourcesEndangered SpeciesA clear understanding of population structure is essential for assessing conservation status and implementing management strategies. A small, non-migratory population of humpback whales in the Arabian Sea is classified as "Endangered" on the IUCN Red List of Threatened Species, an assessment constrained by a lack of data, including limited understanding of its relationship to other populations. We analysed 11 microsatellite markers and mitochondrial DNA sequences extracted from 67 Arabian Sea humpback whale tissue samples and compared them to equivalent datasets from the Southern Hemisphere and North Pacific. Results show that the Arabian Sea population is highly distinct; estimates of gene flow and divergence times suggest a Southern Indian Ocean origin but indicate that it has been isolated for approximately 70,000 years, remarkable for a species that is typically highly migratory. Genetic diversity values are significantly lower than those obtained for Southern Hemisphere populations and signatures of ancient and recent genetic bottlenecks were identified. Our findings suggest this is the world's most isolated humpback whale population, which, when combined with low population abundance estimates and anthropogenic threats, raises concern for its survival. We recommend an amendment of the status of the population to "Critically Endangered" on the IUCN Red List.PLoSRepositório da Universidade de LisboaPomilla, CristinaAmaral, Ana RitaCollins, TimMinton, GiannaFindlay, KenLeslie, Matthew S.Ponnampalam, LouisaBaldwin, RobertRosenbaum, Howard2020-12-28T15:23:17Z20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/45570eng10.1371/journal.pone.0114162info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:47:28Zoai:repositorio.ul.pt:10451/45570Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:57:57.851856Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
title |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
spellingShingle |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea Pomilla, Cristina Animals Bayes Theorem DNA, Mitochondrial Genetic Variation Haplotypes Humpback Whale Indian Ocean Microsatellite Repeats Phylogeny Polymerase Chain Reaction Conservation of Natural Resources Endangered Species |
title_short |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
title_full |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
title_fullStr |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
title_full_unstemmed |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
title_sort |
The World's Most Isolated and Distinct Whale Population? Humpback Whales of the Arabian Sea |
author |
Pomilla, Cristina |
author_facet |
Pomilla, Cristina Amaral, Ana Rita Collins, Tim Minton, Gianna Findlay, Ken Leslie, Matthew S. Ponnampalam, Louisa Baldwin, Robert Rosenbaum, Howard |
author_role |
author |
author2 |
Amaral, Ana Rita Collins, Tim Minton, Gianna Findlay, Ken Leslie, Matthew S. Ponnampalam, Louisa Baldwin, Robert Rosenbaum, Howard |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Pomilla, Cristina Amaral, Ana Rita Collins, Tim Minton, Gianna Findlay, Ken Leslie, Matthew S. Ponnampalam, Louisa Baldwin, Robert Rosenbaum, Howard |
dc.subject.por.fl_str_mv |
Animals Bayes Theorem DNA, Mitochondrial Genetic Variation Haplotypes Humpback Whale Indian Ocean Microsatellite Repeats Phylogeny Polymerase Chain Reaction Conservation of Natural Resources Endangered Species |
topic |
Animals Bayes Theorem DNA, Mitochondrial Genetic Variation Haplotypes Humpback Whale Indian Ocean Microsatellite Repeats Phylogeny Polymerase Chain Reaction Conservation of Natural Resources Endangered Species |
description |
A clear understanding of population structure is essential for assessing conservation status and implementing management strategies. A small, non-migratory population of humpback whales in the Arabian Sea is classified as "Endangered" on the IUCN Red List of Threatened Species, an assessment constrained by a lack of data, including limited understanding of its relationship to other populations. We analysed 11 microsatellite markers and mitochondrial DNA sequences extracted from 67 Arabian Sea humpback whale tissue samples and compared them to equivalent datasets from the Southern Hemisphere and North Pacific. Results show that the Arabian Sea population is highly distinct; estimates of gene flow and divergence times suggest a Southern Indian Ocean origin but indicate that it has been isolated for approximately 70,000 years, remarkable for a species that is typically highly migratory. Genetic diversity values are significantly lower than those obtained for Southern Hemisphere populations and signatures of ancient and recent genetic bottlenecks were identified. Our findings suggest this is the world's most isolated humpback whale population, which, when combined with low population abundance estimates and anthropogenic threats, raises concern for its survival. We recommend an amendment of the status of the population to "Critically Endangered" on the IUCN Red List. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2014-01-01T00:00:00Z 2020-12-28T15:23:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/45570 |
url |
http://hdl.handle.net/10451/45570 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1371/journal.pone.0114162 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
PLoS |
publisher.none.fl_str_mv |
PLoS |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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