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dc.contributor.author
Cassens, Insa
dc.contributor.author
Van Waerebeek, Koen
dc.contributor.author
Best, Peter B.
dc.contributor.author
Tzika, Athanasia
dc.contributor.author
Van Helden, Anton L.
dc.contributor.author
Crespo, Enrique Alberto
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dc.contributor.author
Milinkovitch, Michel C.
dc.date.available
2020-05-26T19:27:14Z
dc.date.issued
2004-12
dc.identifier.citation
Cassens, Insa; Van Waerebeek, Koen; Best, Peter B.; Tzika, Athanasia; Van Helden, Anton L.; et al.; Evidence for male dispersal along the coasts but no migration in pelagic waters in dusky dolphins (Lagenorhynchus obscurus); Wiley Blackwell Publishing, Inc; Molecular Ecology; 14; 1; 12-2004; 107-121
dc.identifier.issn
0962-1083
dc.identifier.uri
http://hdl.handle.net/11336/105921
dc.description.abstract
Using nine nuclear species-specific microsatellite loci and two mitochondrial genefragments (cytochrome b and control region), we investigated the processes that have shapedthe geographical distribution of genetic diversity exhibited by contemporary dusky dolphin(Lagenorhynchus obscurus) populations. A total of 221 individuals from four locations (Peru,Argentina, Southwest Africa, and New Zealand) were assayed, covering most of the species’distribution range. Although our analyses identify a general demographic decline in thePeruvian dusky dolphin stock (recently affected by high natural and human-induced mortalitylevels), comparison between the different molecular markers hint at an ancient bottleneck thatpredates recent El Niño oscillations and human exploitation. Moreover, we find evidence of adifference in dispersal behavior of dusky dolphins along the South American coast and acrossthe Atlantic: while data in Peruvian and Argentinean waters are best explained by malespecificgene flow between these two populations, our analyses suggest that dusky dolphinsfrom Argentina and Southwest Africa recently separated from an ancestral Atlantic populationand, since then, diverged without considerable gene flow. The inclusion of a few NewZealand samples further confirms the low levels of genetic differentiation among most duskydolphin populations. Only the Peruvian dusky dolphin stock is highly differentiated,especially at mitochondrial loci, suggesting that major fluctuations in its population size haveled to an increased rate of genetic drift.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CETACEA
dc.subject
MTDNA
dc.subject
MICROSATELLITES
dc.subject
PHYLOGEOGRAPHY
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MALE-BIASED GENE FLOW
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Evidence for male dispersal along the coasts but no migration in pelagic waters in dusky dolphins (Lagenorhynchus obscurus)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-05-05T14:11:54Z
dc.journal.volume
14
dc.journal.number
1
dc.journal.pagination
107-121
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Cassens, Insa. Université Libre de Bruxelles; Bélgica
dc.description.fil
Fil: Van Waerebeek, Koen. Peruvian Centre for Cetacean Research; Perú
dc.description.fil
Fil: Best, Peter B.. University of Pretoria; Sudáfrica
dc.description.fil
Fil: Tzika, Athanasia. Université Libre de Bruxelles; Bélgica
dc.description.fil
Fil: Van Helden, Anton L.. Museum of New Zealand Te Papa Tongarewa; Nueva Zelanda
dc.description.fil
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Milinkovitch, Michel C.. Université Libre de Bruxelles; Bélgica
dc.journal.title
Molecular Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1365-294X.2004.02407.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-294X.2004.02407.x
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