Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?

Autores
Fasola, Laura; Chehébar, C.; MacDonald, D.W.; Porro, G.; Cassini, Marcelo Hernan
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
American mink Mustela vison, originally bred in fur farms, have become established in areas occupied by native endangered Southern river otter Lontra provocax, in Patagonia. In accordance with European experience, this biological invasion in South America raises questions about the interaction between invasive mink and native otter, from the viewpoints of both community assembly and conservation. We set out (1) to find which aspects of habitat structure were related to the distribution of signs of both this invasive species and Southern river otter Lontra provocax, in Argentinean Patagonia and their most common prey and (2) to test general predictions of niche partitioning between these two species. Based on surveys of 447 of 600 m transects for otter and mink scats/footprints along the waterside of lakes and rivers in the Andean Patagonian region, we compared diet composition (from scat analysis) and micro-habitat preferences (from field signs) of the two species. Otters were more specialist than mink in habitat use and diet. Mink used different habitats in other river basins where otters were absent. Where they occurred together in the basin of the Limay River, the distributions of their signs were similar, and mink diet was more similar to that of otters. There was no detectable difference in otter diet before and after mink arrival in the Limay basin. Contrary to the prediction of niche partitioning, and to the findings of European studies, resource use by mink was more similar to that of otters where the species occurred sympatrically than where they were allopatric.
Fil: Fasola, Laura. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Chehébar, C.. Administración de Parques Nacionales; Argentina
Fil: MacDonald, D.W.. University of Oxford; Reino Unido
Fil: Porro, G.. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; Argentina
Fil: Cassini, Marcelo Hernan. Universidad Nacional de Luján; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
AMERICAN MINK
COMPETITION
INVASIVE SPECIES
PATAGONIA
SOUTH AMERICAN RIVER OTTER
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:11336/125843

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spelling Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?Fasola, LauraChehébar, C.MacDonald, D.W.Porro, G.Cassini, Marcelo HernanAMERICAN MINKCOMPETITIONINVASIVE SPECIESPATAGONIASOUTH AMERICAN RIVER OTTERhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1American mink Mustela vison, originally bred in fur farms, have become established in areas occupied by native endangered Southern river otter Lontra provocax, in Patagonia. In accordance with European experience, this biological invasion in South America raises questions about the interaction between invasive mink and native otter, from the viewpoints of both community assembly and conservation. We set out (1) to find which aspects of habitat structure were related to the distribution of signs of both this invasive species and Southern river otter Lontra provocax, in Argentinean Patagonia and their most common prey and (2) to test general predictions of niche partitioning between these two species. Based on surveys of 447 of 600 m transects for otter and mink scats/footprints along the waterside of lakes and rivers in the Andean Patagonian region, we compared diet composition (from scat analysis) and micro-habitat preferences (from field signs) of the two species. Otters were more specialist than mink in habitat use and diet. Mink used different habitats in other river basins where otters were absent. Where they occurred together in the basin of the Limay River, the distributions of their signs were similar, and mink diet was more similar to that of otters. There was no detectable difference in otter diet before and after mink arrival in the Limay basin. Contrary to the prediction of niche partitioning, and to the findings of European studies, resource use by mink was more similar to that of otters where the species occurred sympatrically than where they were allopatric.Fil: Fasola, Laura. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Chehébar, C.. Administración de Parques Nacionales; ArgentinaFil: MacDonald, D.W.. University of Oxford; Reino UnidoFil: Porro, G.. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; ArgentinaFil: Cassini, Marcelo Hernan. Universidad Nacional de Luján; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley Blackwell Publishing, Inc2009-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125843Fasola, Laura; Chehébar, C.; MacDonald, D.W.; Porro, G.; Cassini, Marcelo Hernan; Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?; Wiley Blackwell Publishing, Inc; Journal Of Zoology; 277; 3; 3-2009; 187-1950952-8369CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/j.1469-7998.2008.00507.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1469-7998.2008.00507.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:23Zoai:ri.conicet.gov.ar:11336/125843instacron: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 10:31:23.309CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
title Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
spellingShingle Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
Fasola, Laura
AMERICAN MINK
COMPETITION
INVASIVE SPECIES
PATAGONIA
SOUTH AMERICAN RIVER OTTER
title_short Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
title_full Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
title_fullStr Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
title_full_unstemmed Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
title_sort Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?
dc.creator.none.fl_str_mv Fasola, Laura
Chehébar, C.
MacDonald, D.W.
Porro, G.
Cassini, Marcelo Hernan
author Fasola, Laura
author_facet Fasola, Laura
Chehébar, C.
MacDonald, D.W.
Porro, G.
Cassini, Marcelo Hernan
author_role author
author2 Chehébar, C.
MacDonald, D.W.
Porro, G.
Cassini, Marcelo Hernan
author2_role author
author
author
author
dc.subject.none.fl_str_mv AMERICAN MINK
COMPETITION
INVASIVE SPECIES
PATAGONIA
SOUTH AMERICAN RIVER OTTER
topic AMERICAN MINK
COMPETITION
INVASIVE SPECIES
PATAGONIA
SOUTH AMERICAN RIVER OTTER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv American mink Mustela vison, originally bred in fur farms, have become established in areas occupied by native endangered Southern river otter Lontra provocax, in Patagonia. In accordance with European experience, this biological invasion in South America raises questions about the interaction between invasive mink and native otter, from the viewpoints of both community assembly and conservation. We set out (1) to find which aspects of habitat structure were related to the distribution of signs of both this invasive species and Southern river otter Lontra provocax, in Argentinean Patagonia and their most common prey and (2) to test general predictions of niche partitioning between these two species. Based on surveys of 447 of 600 m transects for otter and mink scats/footprints along the waterside of lakes and rivers in the Andean Patagonian region, we compared diet composition (from scat analysis) and micro-habitat preferences (from field signs) of the two species. Otters were more specialist than mink in habitat use and diet. Mink used different habitats in other river basins where otters were absent. Where they occurred together in the basin of the Limay River, the distributions of their signs were similar, and mink diet was more similar to that of otters. There was no detectable difference in otter diet before and after mink arrival in the Limay basin. Contrary to the prediction of niche partitioning, and to the findings of European studies, resource use by mink was more similar to that of otters where the species occurred sympatrically than where they were allopatric.
Fil: Fasola, Laura. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Chehébar, C.. Administración de Parques Nacionales; Argentina
Fil: MacDonald, D.W.. University of Oxford; Reino Unido
Fil: Porro, G.. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; Argentina
Fil: Cassini, Marcelo Hernan. Universidad Nacional de Luján; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description American mink Mustela vison, originally bred in fur farms, have become established in areas occupied by native endangered Southern river otter Lontra provocax, in Patagonia. In accordance with European experience, this biological invasion in South America raises questions about the interaction between invasive mink and native otter, from the viewpoints of both community assembly and conservation. We set out (1) to find which aspects of habitat structure were related to the distribution of signs of both this invasive species and Southern river otter Lontra provocax, in Argentinean Patagonia and their most common prey and (2) to test general predictions of niche partitioning between these two species. Based on surveys of 447 of 600 m transects for otter and mink scats/footprints along the waterside of lakes and rivers in the Andean Patagonian region, we compared diet composition (from scat analysis) and micro-habitat preferences (from field signs) of the two species. Otters were more specialist than mink in habitat use and diet. Mink used different habitats in other river basins where otters were absent. Where they occurred together in the basin of the Limay River, the distributions of their signs were similar, and mink diet was more similar to that of otters. There was no detectable difference in otter diet before and after mink arrival in the Limay basin. Contrary to the prediction of niche partitioning, and to the findings of European studies, resource use by mink was more similar to that of otters where the species occurred sympatrically than where they were allopatric.
publishDate 2009
dc.date.none.fl_str_mv 2009-03
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/11336/125843
Fasola, Laura; Chehébar, C.; MacDonald, D.W.; Porro, G.; Cassini, Marcelo Hernan; Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?; Wiley Blackwell Publishing, Inc; Journal Of Zoology; 277; 3; 3-2009; 187-195
0952-8369
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125843
identifier_str_mv Fasola, Laura; Chehébar, C.; MacDonald, D.W.; Porro, G.; Cassini, Marcelo Hernan; Do alien North American mink compete for resources with native South American river otter in Argentinean Patagonia?; Wiley Blackwell Publishing, Inc; Journal Of Zoology; 277; 3; 3-2009; 187-195
0952-8369
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://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/j.1469-7998.2008.00507.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1469-7998.2008.00507.x
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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