10.5061/DRYAD.8CS4F
Rosenbaum, Howard C.
Kershaw, Francine
Columbia University
Mendez, Martin
Pomilla, Cristina
Wellcome Trust
Leslie, Matthew S.
Smithsonian Institution
Findlay, Ken P.
Cape Peninsula University of Technology
Best, Peter B.
University of Pretoria
Collins, Timothy
Vely, Michel
Engel, Marcia H.
Baldwin, Robert
Minton, Gianna
Meyer, Michael
Department of Environmental Affairs
Florez-Gonzalez, Lillian
Poole, M. Michael
Hauser, Nan
Garrigue, Claire
Brasseur, Muriel
Edith Cowan University
Bannister, John
Western Australian Museum
Anderson, Megan
Southern Cross University
Olavarria, Carlos
University of Auckland
Baker, C. Scott
Oregon State University
Data from: First circumglobal assessment of Southern Hemisphere humpback
whale mitochondrial genetic variation and implications for management
Dryad
dataset
2018
International Whaling Commission
Southern Hemisphere
management unit
Megaptera novaeangliae
Arabian Sea
2018-05-15T00:00:00Z
2018-05-15T00:00:00Z
en
https://doi.org/10.3354/esr00822
77303 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The description of genetic population structure over a species’ geographic
range can provide insights into its evolutionary history and also support
effective management efforts. Assessments for globally distributed species
are rare, however, requiring significant international coordination and
collaboration. The global distribution of demographically discrete
populations for the humpback whale Megaptera novaeangliae is not fully
known, hampering the definition of appropriate management units. Here, we
present the first circumglobal assessment of mitochondrial genetic
population structure across the species’ range in the Southern Hemisphere
and Arabian Sea. We combine new and existing data from the mitochondrial
(mt)DNA control region that resulted in a 311 bp consensus sequence of the
mtDNA control region for 3009 individuals sampled across 14 breeding
stocks and subpopulations currently recognized by the International
Whaling Commission. We assess genetic diversity and test for genetic
differentiation and also estimate the magnitude and directionality of
historic matrilineal gene flow between putative populations. Our results
indicate that maternally directed site fidelity drives significant genetic
population structure between breeding stocks within ocean basins. However,
patterns of connectivity differ across the circumpolar range, possibly as
a result of differences in the extent of longitudinal movements on feeding
areas. The number of population comparisons observed to be significantly
differentiated were found to diminish at the subpopulation scale when
nucleotide differences were examined, indicating that more complex
processes underlie genetic structure at this scale. It is crucial that
these complexities and uncertainties are afforded greater consideration in
management and regulatory efforts.
Rosenbaum_et_al_HaplotypeFrequencyTableHaplotype Frequency Table
Southern Hemisphere (circumglobal)
Arabian Sea