Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?

Autores
Ibarra, Jose Tomas; Fasola, Laura; Macdonald, David W.; Ricardo, Rozzi; Cristián, Bonacic
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The 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 JanuaryNovember 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.
Fil: Ibarra, Jose Tomas. Pontificia Universidad Católica de Chile; Chile
Fil: Fasola, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. University of Oxford; Reino Unido
Fil: Macdonald, David W.. University of Oxford; Reino Unido
Fil: Ricardo, Rozzi. Universidad de Magallanes; Chile
Fil: Cristián, Bonacic. Pontificia Universidad Católica de Chile; Chile
Materia
AMERICAN MINK
CAPE HORN
DIET
INVASIVE SPECIES
MUSTELA VISON
SEASONAL VARIATIONS
WETLANDS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/131628
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?Ibarra, Jose TomasFasola, LauraMacdonald, David W.Ricardo, RozziCristián, BonacicAMERICAN MINKCAPE HORNDIETINVASIVE SPECIESMUSTELA VISONSEASONAL VARIATIONSWETLANDShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The 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 JanuaryNovember 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.Fil: Ibarra, Jose Tomas. Pontificia Universidad Católica de Chile; ChileFil: Fasola, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. University of Oxford; Reino UnidoFil: Macdonald, David W.. University of Oxford; Reino UnidoFil: Ricardo, Rozzi. Universidad de Magallanes; ChileFil: Cristián, Bonacic. Pontificia Universidad Católica de Chile; ChileCambridge University Press2009-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/131628Ibarra, Jose Tomas; Fasola, Laura; Macdonald, David W.; Ricardo, Rozzi; Cristián, Bonacic; Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?; Cambridge University Press; Oryx; 43; 1; 1-2009; 87-900030-6053CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/oryx/article/invasive-american-mink-mustela-vison-in-wetlands-of-the-cape-horn-biosphere-reserve-southern-chile-what-are-they-eating/5C42689D418D4FE1588CDE99EAB04D95info:eu-repo/semantics/altIdentifier/doi/10.1017/S0030605308099997info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:37:59Zoai:ri.conicet.gov.ar:11336/131628instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:38:00.211CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
title Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
spellingShingle Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
Ibarra, Jose Tomas
AMERICAN MINK
CAPE HORN
DIET
INVASIVE SPECIES
MUSTELA VISON
SEASONAL VARIATIONS
WETLANDS
title_short Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
title_full Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
title_fullStr Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
title_full_unstemmed Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
title_sort Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?
dc.creator.none.fl_str_mv Ibarra, Jose Tomas
Fasola, Laura
Macdonald, David W.
Ricardo, Rozzi
Cristián, Bonacic
author Ibarra, Jose Tomas
author_facet Ibarra, Jose Tomas
Fasola, Laura
Macdonald, David W.
Ricardo, Rozzi
Cristián, Bonacic
author_role author
author2 Fasola, Laura
Macdonald, David W.
Ricardo, Rozzi
Cristián, Bonacic
author2_role author
author
author
author
dc.subject.none.fl_str_mv AMERICAN MINK
CAPE HORN
DIET
INVASIVE SPECIES
MUSTELA VISON
SEASONAL VARIATIONS
WETLANDS
topic AMERICAN MINK
CAPE HORN
DIET
INVASIVE SPECIES
MUSTELA VISON
SEASONAL VARIATIONS
WETLANDS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The 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 JanuaryNovember 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.
Fil: Ibarra, Jose Tomas. Pontificia Universidad Católica de Chile; Chile
Fil: Fasola, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. University of Oxford; Reino Unido
Fil: Macdonald, David W.. University of Oxford; Reino Unido
Fil: Ricardo, Rozzi. Universidad de Magallanes; Chile
Fil: Cristián, Bonacic. Pontificia Universidad Católica de Chile; Chile
description The 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 JanuaryNovember 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.
publishDate 2009
dc.date.none.fl_str_mv 2009-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/131628
Ibarra, Jose Tomas; Fasola, Laura; Macdonald, David W.; Ricardo, Rozzi; Cristián, Bonacic; Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?; Cambridge University Press; Oryx; 43; 1; 1-2009; 87-90
0030-6053
CONICET Digital
CONICET
url http://hdl.handle.net/11336/131628
identifier_str_mv Ibarra, Jose Tomas; Fasola, Laura; Macdonald, David W.; Ricardo, Rozzi; Cristián, Bonacic; Invasive american mink mustela vison in wetlands of the cape horn biosphere reserve, southern Chile: What are they eating?; Cambridge University Press; Oryx; 43; 1; 1-2009; 87-90
0030-6053
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/oryx/article/invasive-american-mink-mustela-vison-in-wetlands-of-the-cape-horn-biosphere-reserve-southern-chile-what-are-they-eating/5C42689D418D4FE1588CDE99EAB04D95
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0030605308099997
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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