Use of tips by nesting Kelp Gulls at a growing colony in Patagonia

[EN] We evaluated the magnitude of use of waste tips by Kelp Gulls (Larus dominicanus) nesting at Isla de los Pájaros, a large and growing colony in Patagonia, Argentina, and we assessed the difference in use between tips with urban and fishery waste. We marked with color dye 1347 adult breeding Kel...

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Autores: Bertellotti, Marcelo, Yorio, Pablo, Blanco, Guillermo, Giaccardi,Maricel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2001
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/284240
Acceso en línea:http://hdl.handle.net/10261/284240
Access Level:acceso abierto
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oai_identifier_str oai:digital.csic.es:10261/284240
network_acronym_str ES
network_name_str España
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dc.title.none.fl_str_mv Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
Uso de vertederos por Larus dominicanus anidando en una colonia creciente en la patagonia
title Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
spellingShingle Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
Bertellotti, Marcelo
title_short Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
title_full Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
title_fullStr Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
title_full_unstemmed Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
title_sort Use of tips by nesting Kelp Gulls at a growing colony in Patagonia
dc.creator.none.fl_str_mv Bertellotti, Marcelo
Yorio, Pablo
Blanco, Guillermo
Giaccardi,Maricel
author Bertellotti, Marcelo
author_facet Bertellotti, Marcelo
Yorio, Pablo
Blanco, Guillermo
Giaccardi,Maricel
author_role author
author2 Yorio, Pablo
Blanco, Guillermo
Giaccardi,Maricel
author2_role author
author
author
dc.contributor.none.fl_str_mv Wildlife Conservation Society
Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)
Ministerio de Educación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description [EN] We evaluated the magnitude of use of waste tips by Kelp Gulls (Larus dominicanus) nesting at Isla de los Pájaros, a large and growing colony in Patagonia, Argentina, and we assessed the difference in use between tips with urban and fishery waste. We marked with color dye 1347 adult breeding Kelp Gulls to determine if they fed in urban and fishery tips and to estimate the number of birds which used those tips during incubation. Kelp Gulls were present during 100% and 64% of counts at the fishery waste tip and the urban waste tip, respectively. The number of adult gulls was always larger at the fishery waste tip (mean ± SD = 1694 ± 664) than in the urban waste tip (mean ± SD = 59 ± 68). Considering the total number of gulls flying from the colony to the tips and the proportion of marked gulls in the tips, we estimated that at least 54–69% of the birds of the colony were present at the tips. The use of fishery waste may have contributed to the increase in the number of Kelp Gulls breeding at Isla de los Pájaros, and the quality, abundance, and predictability of food disposed at the fishery waste tip could foster the use of this site relative to natural food sources located closer to their breeding colony. Removal of artificial food sources may be assessed at the Puerto Madryn and other Patagonian waste tips to reduce conflicts between human and gull populations.
publishDate 2001
dc.date.none.fl_str_mv 2001
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/284240
url http://hdl.handle.net/10261/284240
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1648/0273-8570-72.3.338
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv BioOne
publisher.none.fl_str_mv BioOne
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Use of tips by nesting Kelp Gulls at a growing colony in PatagoniaUso de vertederos por Larus dominicanus anidando en una colonia creciente en la patagoniaBertellotti, MarceloYorio, PabloBlanco, GuillermoGiaccardi,Maricel[EN] We evaluated the magnitude of use of waste tips by Kelp Gulls (Larus dominicanus) nesting at Isla de los Pájaros, a large and growing colony in Patagonia, Argentina, and we assessed the difference in use between tips with urban and fishery waste. We marked with color dye 1347 adult breeding Kelp Gulls to determine if they fed in urban and fishery tips and to estimate the number of birds which used those tips during incubation. Kelp Gulls were present during 100% and 64% of counts at the fishery waste tip and the urban waste tip, respectively. The number of adult gulls was always larger at the fishery waste tip (mean ± SD = 1694 ± 664) than in the urban waste tip (mean ± SD = 59 ± 68). Considering the total number of gulls flying from the colony to the tips and the proportion of marked gulls in the tips, we estimated that at least 54–69% of the birds of the colony were present at the tips. The use of fishery waste may have contributed to the increase in the number of Kelp Gulls breeding at Isla de los Pájaros, and the quality, abundance, and predictability of food disposed at the fishery waste tip could foster the use of this site relative to natural food sources located closer to their breeding colony. Removal of artificial food sources may be assessed at the Puerto Madryn and other Patagonian waste tips to reduce conflicts between human and gull populations.[ES] Evaluamos la magnitud del uso de vertederos de desechos de una colonia grande y en crecimiento de Larus dominicanus anidando en la Isla de los Pájaros, en la costa de Patagonia, Argentina, y exploramos las diferencias entre el uso de vertederos de desechos urbanos o de desechos de pescadería. Marcamos con tintes de color 1347 aves adultas para determinar si se alimentaban en vertederos urbanos y de pescaderías y para estimar el número de aves que usaron estos vertederos durante la incubación. Estas aves estuvieron presente durante el 100% y el 64% de los conteos en los vertederos de pescaderías y de los urbanos, respectivamente. El número de aves adultas siempre fué mayor en el vertedero de pescadería (promedio 5 1694, SD 5 664) que en el vertedero urbano (promedio 5 59, SD 5 68). Considerando el número total de aves volando de la colonia a los vertederos y la proporción de aves marcadas en los vertederos, estimamos que al menos el 54–69% de las aves de la colonia estaba presente en los vertederos. El uso de los desechos de pescadería puede haber contribuído al aumento en el número de aves anidando en la Isla de los Pájaros. La calidad, abundancia, y predictabilidad de alimentos disponibles en el vertedero de pescadería podría estimular el uso de esta localidad relativo a las fuentes de recursos alimenticios localizados cercanos a su colonia reproductiva. La remoción de fuentes artificiales de alimentos pudiera llevarse a cabo en el Puerto Madryn y en otros vertederos de Patagonia para reducir conflictos entre poblaciones humanas y de las gaviotas.Our research was funded by the Wildlife Conservation Society. M. B. was supported by a grant of the Consejo Nacional de Investigaciones Cientificas y Tecnicas of Argentina, and G. B. was supported by a postdoctoral grant of the Spanish Ministry of Education. We also thank Centro Nacional Patagonico (CONICET) for institutional supportPeer reviewedBioOneWildlife Conservation SocietyConsejo Nacional de Investigaciones Científicas y Técnicas (Argentina)Ministerio de Educación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222001info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/284240reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1648/0273-8570-72.3.338Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2842402026-05-22T06:33:51Z
score 15,812429

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