A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia

Autores
Frixione, Martín G.; Casaux, Ricardo Jorge; Villanueva, María Cecilia; Alarcón, Pablo Angel Eduardo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Populations of several species of gull are increasing worldwide as a result of a plentiful supply of anthropogenic food in urbanised environments. In light of this, we decided to examine the importance of anthropogenic food in the diet of a recently established colony of Kelp Gulls (Larus dominicanus). We collected 241 regurgitated pellets of the Kelp Gull during the 2008-09 breeding season at the colony in the De La Guardia Islands, Nahuel Huapi Lake, Argentina. In terms of percentage frequency of occurrence in pellets, human refuse (65.6%) was the most frequently recorded item, followed by insects (42.3%; mostly coleopterans) and fish (21.2%). In terms of the percentage number of total prey items, insects (62.1%) and human refuse (21.3%) were the most abundant items. The consumption of insects decreased and that of human refuse increased during chick-rearing. Human refuse was recorded in samples from most nests (97.3%). We compare our results with those obtained for other localities and discuss the consequences of the management of urban refuse. Our results suggest that the Kelp Gull breeding colony in the De La Guardia Islands is sustained by the availability of food from the rubbish tip of Villa la Angostura. This is the first dietary study of the Kelp Gull in a continental freshwater ecosystem and one more example of a gull colony supported by anthropogenic sources of food.
Fil: Frixione, Martín G.. Universidad Nacional de la Patagonia; Argentina
Fil: Casaux, Ricardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Villanueva, María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Alarcón, Pablo Angel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Materia
Diet
Human Refuse
Larus Dominicanus
Rubbish Tip
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:11336/73514
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/73514
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network_name_str CONICET Digital (CONICET)
spelling A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in PatagoniaFrixione, Martín G.Casaux, Ricardo JorgeVillanueva, María CeciliaAlarcón, Pablo Angel EduardoDietHuman RefuseLarus DominicanusRubbish Tiphttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Populations of several species of gull are increasing worldwide as a result of a plentiful supply of anthropogenic food in urbanised environments. In light of this, we decided to examine the importance of anthropogenic food in the diet of a recently established colony of Kelp Gulls (Larus dominicanus). We collected 241 regurgitated pellets of the Kelp Gull during the 2008-09 breeding season at the colony in the De La Guardia Islands, Nahuel Huapi Lake, Argentina. In terms of percentage frequency of occurrence in pellets, human refuse (65.6%) was the most frequently recorded item, followed by insects (42.3%; mostly coleopterans) and fish (21.2%). In terms of the percentage number of total prey items, insects (62.1%) and human refuse (21.3%) were the most abundant items. The consumption of insects decreased and that of human refuse increased during chick-rearing. Human refuse was recorded in samples from most nests (97.3%). We compare our results with those obtained for other localities and discuss the consequences of the management of urban refuse. Our results suggest that the Kelp Gull breeding colony in the De La Guardia Islands is sustained by the availability of food from the rubbish tip of Villa la Angostura. This is the first dietary study of the Kelp Gull in a continental freshwater ecosystem and one more example of a gull colony supported by anthropogenic sources of food.Fil: Frixione, Martín G.. Universidad Nacional de la Patagonia; ArgentinaFil: Casaux, Ricardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Villanueva, María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Alarcón, Pablo Angel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaCsiro Publishing2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73514Frixione, Martín G.; Casaux, Ricardo Jorge; Villanueva, María Cecilia; Alarcón, Pablo Angel Eduardo; A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia; Csiro Publishing; Emu; 112; 2; 5-2012; 174-1780158-4197CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1071/MU11031info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1071/MU11031info:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/MU/MU11031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:01Zoai:ri.conicet.gov.ar:11336/73514instacron: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 09:36:01.713CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
title A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
spellingShingle A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
Frixione, Martín G.
Diet
Human Refuse
Larus Dominicanus
Rubbish Tip
title_short A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
title_full A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
title_fullStr A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
title_full_unstemmed A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
title_sort A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia
dc.creator.none.fl_str_mv Frixione, Martín G.
Casaux, Ricardo Jorge
Villanueva, María Cecilia
Alarcón, Pablo Angel Eduardo
author Frixione, Martín G.
author_facet Frixione, Martín G.
Casaux, Ricardo Jorge
Villanueva, María Cecilia
Alarcón, Pablo Angel Eduardo
author_role author
author2 Casaux, Ricardo Jorge
Villanueva, María Cecilia
Alarcón, Pablo Angel Eduardo
author2_role author
author
author
dc.subject.none.fl_str_mv Diet
Human Refuse
Larus Dominicanus
Rubbish Tip
topic Diet
Human Refuse
Larus Dominicanus
Rubbish Tip
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Populations of several species of gull are increasing worldwide as a result of a plentiful supply of anthropogenic food in urbanised environments. In light of this, we decided to examine the importance of anthropogenic food in the diet of a recently established colony of Kelp Gulls (Larus dominicanus). We collected 241 regurgitated pellets of the Kelp Gull during the 2008-09 breeding season at the colony in the De La Guardia Islands, Nahuel Huapi Lake, Argentina. In terms of percentage frequency of occurrence in pellets, human refuse (65.6%) was the most frequently recorded item, followed by insects (42.3%; mostly coleopterans) and fish (21.2%). In terms of the percentage number of total prey items, insects (62.1%) and human refuse (21.3%) were the most abundant items. The consumption of insects decreased and that of human refuse increased during chick-rearing. Human refuse was recorded in samples from most nests (97.3%). We compare our results with those obtained for other localities and discuss the consequences of the management of urban refuse. Our results suggest that the Kelp Gull breeding colony in the De La Guardia Islands is sustained by the availability of food from the rubbish tip of Villa la Angostura. This is the first dietary study of the Kelp Gull in a continental freshwater ecosystem and one more example of a gull colony supported by anthropogenic sources of food.
Fil: Frixione, Martín G.. Universidad Nacional de la Patagonia; Argentina
Fil: Casaux, Ricardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Villanueva, María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Alarcón, Pablo Angel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
description Populations of several species of gull are increasing worldwide as a result of a plentiful supply of anthropogenic food in urbanised environments. In light of this, we decided to examine the importance of anthropogenic food in the diet of a recently established colony of Kelp Gulls (Larus dominicanus). We collected 241 regurgitated pellets of the Kelp Gull during the 2008-09 breeding season at the colony in the De La Guardia Islands, Nahuel Huapi Lake, Argentina. In terms of percentage frequency of occurrence in pellets, human refuse (65.6%) was the most frequently recorded item, followed by insects (42.3%; mostly coleopterans) and fish (21.2%). In terms of the percentage number of total prey items, insects (62.1%) and human refuse (21.3%) were the most abundant items. The consumption of insects decreased and that of human refuse increased during chick-rearing. Human refuse was recorded in samples from most nests (97.3%). We compare our results with those obtained for other localities and discuss the consequences of the management of urban refuse. Our results suggest that the Kelp Gull breeding colony in the De La Guardia Islands is sustained by the availability of food from the rubbish tip of Villa la Angostura. This is the first dietary study of the Kelp Gull in a continental freshwater ecosystem and one more example of a gull colony supported by anthropogenic sources of food.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/73514
Frixione, Martín G.; Casaux, Ricardo Jorge; Villanueva, María Cecilia; Alarcón, Pablo Angel Eduardo; A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia; Csiro Publishing; Emu; 112; 2; 5-2012; 174-178
0158-4197
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73514
identifier_str_mv Frixione, Martín G.; Casaux, Ricardo Jorge; Villanueva, María Cecilia; Alarcón, Pablo Angel Eduardo; A recently established Kelp Gull colony in a freshwater environment supported by an inland refuse dump in Patagonia; Csiro Publishing; Emu; 112; 2; 5-2012; 174-178
0158-4197
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1071/MU11031
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1071/MU11031
info:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/MU/MU11031
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
application/pdf
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
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 13.070432

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