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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Population Structure of Humpback Whales from Their Breeding Grounds in the South Atlantic and Indian Oceans
PLoS ONE, Volume 4, No. 10, Article e0007318, Year 2009
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Description
Although humpback whales are among the best-studied of the large whales, population boundaries in the Southern Hemisphere (SH) have remained largely untested. We assess population structure of SH humpback whales using 1,527 samples collected from whales at fourteen sampling sites within the Southwestern and Southeastern Atlantic, the Southwestern Indian Ocean, and Northern Indian Ocean (Breeding Stocks A, B, C and X, respectively). Evaluation of mtDNA population structure and migration rates was carried out under different statistical frameworks. Using all genetic evidence, the results suggest significant degrees of population structure between all ocean basins, with the Southwestern and Northern Indian Ocean most differentiated from each other. Effective migration rates were highest between the Southeastern Atlantic and the Southwestern Indian Ocean, followed by rates within the Southeastern Atlantic, and the lowest between the Southwestern and Northern Indian Ocean. At finer scales, very low gene flow was detected between the two neighbouring sub-regions in the Southeastern Atlantic, compared to high gene flow for whales within the Southwestern Indian Ocean. Our genetic results support the current management designations proposed by the International Whaling Commission of Breeding Stocks A, B, C, and X as four strongly structured populations. The population structure patterns found in this study are likely to have been influenced by a combination of long-term maternally directed fidelity of migratory destinations, along with other ecological and oceanographic features in the region. © 2009 Rosenbaum et al.
Authors & Co-Authors
Rosenbaum, Howard C.
United States, New York
Wildlife Conservation Society
United States, New York
American Museum of Natural History
United States, New York
Columbia University
Pomilla, Cristina
United States, New York
Wildlife Conservation Society
United States, New York
American Museum of Natural History
Méndez, Martín
United States, New York
Wildlife Conservation Society
United States, New York
American Museum of Natural History
United States, New York
Columbia University
Leslie, Matthew S.
United States, New York
Wildlife Conservation Society
United States, New York
American Museum of Natural History
Best, P. B.
South Africa, Pretoria
University of Pretoria
Findlay, K. P.
South Africa, Cape Town
University of Cape Town
Minton, Gianna
Oman, Muscat
Environment Society of Oman
Ersts, Peter J.
United States, New York
Wildlife Conservation Society
United States, New York
American Museum of Natural History
Collins, Tim J.Q.
United States, New York
Wildlife Conservation Society
Oman, Muscat
Environment Society of Oman
Engel, Marcia H.
Brazil, Salvador
Instituto Baleia Jubarte
Brazil, Porto Alegre
Pontifícia Universidade Católica do Rio Grande do Sul
Bonatto, Sandro L.
Brazil, Porto Alegre
Pontifícia Universidade Católica do Rio Grande do Sul
Kotze, Deon
South Africa, Cape Town
Marine and Coastal Management
Meyër, Michael A.
South Africa, Cape Town
Marine and Coastal Management
Barendse, Jaco
South Africa, Pretoria
University of Pretoria
Thornton, Meredith
South Africa, Pretoria
University of Pretoria
Razafindrakoto, Yvette
Madagascar, Antananarivo
Wildlife Conservation Society Madagascar Program
Ngouessono, Solange
Gabon
Ministère du Tourisme et Des Parcs Nationaux
Vély, Michel
France, Paris
Association Megaptera
Kiszka, Jeremy J.
France, La Rochelle
La Rochelle Université
Statistics
Citations: 119
Authors: 19
Affiliations: 13
Identifiers
Doi:
10.1371/journal.pone.0007318
e-ISSN:
19326203
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study