Invasive American mink Mustela vison in wetlands of the Cape Horn Biosphere Reserve, southern Chile: what are they eating?

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dc.contributor.authorIbarra Eliessetch, José Tomás
dc.contributor.authorFasola, Laura
dc.contributor.authorMacdonald, David W.
dc.contributor.authorRozzi, Ricardo
dc.contributor.authorBonacic, Cristian
dc.date.accessioned2024-01-10T13:43:34Z
dc.date.available2024-01-10T13:43:34Z
dc.date.issued2009
dc.description.abstractThe impact of alien American mink on the native fauna of oceanic islands has been demonstrated in a number of locations. In the sub-Antarctic Cape Horn Biosphere Reserve of southern Chile the species is currently expanding in an area where the native fauna evolved in the absence of terrestrial predators. To evaluate any emerging problems we therefore investigated seasonal variation in prey use by mink on Navarino Island within the Reserve. We identified undigested remains in 414 scats collected from the shores of 27 ponds over January-November 2006. Diet consisted mainly of mammals and birds. Mammals, including both native and exotic rodents, were the predominant prey in all seasons but birds were of equal importance during the summer (when birds breed and their abundance and diversity increases on the island). Exotic rodents were the only identifiable mammalian prey item during winter. Native wetland birds constituted a substantial proportion of mink diet, and greater than that reported in other areas. Many birds breeding on Navarino Island are ground-nesting, a strategy that evolved in the absence of native mammalian predators. Considering the international importance of this region, our results emphasize the need for an assessment of the impact of mink predation on the populations of native prey.
dc.description.funderChilean Environmental National Commission
dc.description.funderInstitute of Ecology and Biodiversity
dc.description.funderUniversity of Magallanes and Wildlife Trust Alliance
dc.description.funderUK Darwin Initiative
dc.fechaingreso.objetodigital2024-04-25
dc.format.extent4 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1017/S0030605308099997
dc.identifier.eissn1365-3008
dc.identifier.issn0030-6053
dc.identifier.scopusidSCOPUS_ID:67349234507
dc.identifier.urihttps://doi.org/10.1017/S0030605308099997
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78676
dc.identifier.wosidWOS:000263400700016
dc.information.autorucAgronomía e Ing. Forestal;Bonacic C;S/I;100304
dc.information.autorucVillarrica ; Ibarra Eliessetch, José Tomás ; 0000-0002-7705-3974 ; 120091
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final90
dc.pagina.inicio87
dc.publisherCAMBRIDGE UNIV PRESS
dc.revistaOryx
dc.rightsacceso restringido
dc.subjectAmerican mink
dc.subjectCape Horn
dc.subjectDiet
dc.subjectInvasive species
dc.subjectMustela vison
dc.subjectSeasonal variations
dc.subjectWetlands
dc.subjectOTTER LUTRA-PROVOCAX
dc.subjectBIRDS
dc.subjectIMPACT
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleInvasive American mink Mustela vison in wetlands of the Cape Horn Biosphere Reserve, southern Chile: what are they eating?
dc.typeartículo
dc.volumen43
sipa.codpersvinculados100304
sipa.codpersvinculados120091
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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