Chinstrap penguin population genetic structure: one or more populations along the southern ocean?

[Background] Historical factors, demography, reproduction and dispersal are crucial in determining the genetic structure of seabirds. In the Antarctic marine environment, penguins are a major component of the avian biomass, dominant predators and important bioindicators of ecological change. Populat...

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Detalles Bibliográficos
Autores: Mura-Jornet, Isidora, Pimentel, Carolina, Dantas, Gisele P.M., Petry, Maria V., González-Acuña, Daniel, Barbosa, Andrés, Lowther, Andrew D., Kovacs, Kit M., Poulin, Elie, Vianna, Juliana A.
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/166453
Acceso en línea:http://hdl.handle.net/10261/166453
Access Level:acceso abierto
Palabra clave:Seabirds
Pygoscelis antarcticus
Dispersal
Gene flow
Microsatellites
D-loop
Sex-biased
Antarctica
Descripción
Sumario:[Background] Historical factors, demography, reproduction and dispersal are crucial in determining the genetic structure of seabirds. In the Antarctic marine environment, penguins are a major component of the avian biomass, dominant predators and important bioindicators of ecological change. Populations of chinstrap penguins have decreased in nearly all their breeding sites, and their range is expanding throughout the Antarctic Peninsula. Population genetic structure of this species has been studied in some colonies, but not between breeding colonies in the Antarctic Peninsula or at the species’ easternmost breeding colony (Bouvetøya).