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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/125843
Ver los metadatos del registro completo
id |
CONICETDig_767fac53efa6d5bc22b17acf150c48d8 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/125843 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
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 |
_version_ |
1844614324009566208 |
score |
13.070432 |