Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands

Autores
Sánchez, Rocío; Blendinger, Pedro Gerardo
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Seed-eating birds in temperate deserts must cope with great variation in the availability of their food resources. We studied the trophic ecology of Ringed Warbling-Finches (Poospiza torquata) in semi-arid scrublands of the Monte Desert, Argentina. We assessed seasonality in the availability of seed and in the consumption of arthropods and seeds at a regional scale, and evaluated the composition of the granivorous component of the diet and the seed dietary breadth. Ringed Warbling-Finches had a granivorous–insectivorous diet consistinglargely of arthropods in summer and seeds and arthropods in winter. The granivorous component of the diet consisted mainly of grass seeds, but with low breadth of the winter seed diet. To deal with seasonal variation in the availability of food resources, Ringed Warbling-Finches switched opportunistically between different resources, exploiting alternating seasonal patterns of food abundance. This seasonal switching is a wellestablished strategy in the behaviour of the species and was observed in all Ringed Warbling-Finch populations studied across the Monte Desert. Our results show the flexibility of foraging strategies of Ringed Warbling-Finches, an opportunist species that adjusts their relative consumption of seeds and arthropods in response to the spatial and temporal variations in these food resources.
Fil: Sánchez, Rocío. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Blendinger, Pedro Gerardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Dietary Switch
Granivory
Monte Desert
Resource Channels
Seed-Eating Birds
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:11336/12504
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublandsSánchez, RocíoBlendinger, Pedro GerardoDietary SwitchGranivoryMonte DesertResource ChannelsSeed-Eating Birdshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Seed-eating birds in temperate deserts must cope with great variation in the availability of their food resources. We studied the trophic ecology of Ringed Warbling-Finches (Poospiza torquata) in semi-arid scrublands of the Monte Desert, Argentina. We assessed seasonality in the availability of seed and in the consumption of arthropods and seeds at a regional scale, and evaluated the composition of the granivorous component of the diet and the seed dietary breadth. Ringed Warbling-Finches had a granivorous–insectivorous diet consistinglargely of arthropods in summer and seeds and arthropods in winter. The granivorous component of the diet consisted mainly of grass seeds, but with low breadth of the winter seed diet. To deal with seasonal variation in the availability of food resources, Ringed Warbling-Finches switched opportunistically between different resources, exploiting alternating seasonal patterns of food abundance. This seasonal switching is a wellestablished strategy in the behaviour of the species and was observed in all Ringed Warbling-Finch populations studied across the Monte Desert. Our results show the flexibility of foraging strategies of Ringed Warbling-Finches, an opportunist species that adjusts their relative consumption of seeds and arthropods in response to the spatial and temporal variations in these food resources.Fil: Sánchez, Rocío. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Blendinger, Pedro Gerardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaCsiro Publishing2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12504Sánchez, Rocío; Blendinger, Pedro Gerardo; Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands; Csiro Publishing; Emu; 114; 3; 3-2014; 229-2330158-4197enginfo:eu-repo/semantics/altIdentifier/doi/10.1071/MU13082info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mu/MU13082info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1071/MU13082info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:46Zoai:ri.conicet.gov.ar:11336/12504instacron: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:34982025-10-22 11:21:47.14CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
title Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
spellingShingle Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
Sánchez, Rocío
Dietary Switch
Granivory
Monte Desert
Resource Channels
Seed-Eating Birds
title_short Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
title_full Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
title_fullStr Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
title_full_unstemmed Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
title_sort Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands
dc.creator.none.fl_str_mv Sánchez, Rocío
Blendinger, Pedro Gerardo
author Sánchez, Rocío
author_facet Sánchez, Rocío
Blendinger, Pedro Gerardo
author_role author
author2 Blendinger, Pedro Gerardo
author2_role author
dc.subject.none.fl_str_mv Dietary Switch
Granivory
Monte Desert
Resource Channels
Seed-Eating Birds
topic Dietary Switch
Granivory
Monte Desert
Resource Channels
Seed-Eating Birds
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Seed-eating birds in temperate deserts must cope with great variation in the availability of their food resources. We studied the trophic ecology of Ringed Warbling-Finches (Poospiza torquata) in semi-arid scrublands of the Monte Desert, Argentina. We assessed seasonality in the availability of seed and in the consumption of arthropods and seeds at a regional scale, and evaluated the composition of the granivorous component of the diet and the seed dietary breadth. Ringed Warbling-Finches had a granivorous–insectivorous diet consistinglargely of arthropods in summer and seeds and arthropods in winter. The granivorous component of the diet consisted mainly of grass seeds, but with low breadth of the winter seed diet. To deal with seasonal variation in the availability of food resources, Ringed Warbling-Finches switched opportunistically between different resources, exploiting alternating seasonal patterns of food abundance. This seasonal switching is a wellestablished strategy in the behaviour of the species and was observed in all Ringed Warbling-Finch populations studied across the Monte Desert. Our results show the flexibility of foraging strategies of Ringed Warbling-Finches, an opportunist species that adjusts their relative consumption of seeds and arthropods in response to the spatial and temporal variations in these food resources.
Fil: Sánchez, Rocío. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Blendinger, Pedro Gerardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Seed-eating birds in temperate deserts must cope with great variation in the availability of their food resources. We studied the trophic ecology of Ringed Warbling-Finches (Poospiza torquata) in semi-arid scrublands of the Monte Desert, Argentina. We assessed seasonality in the availability of seed and in the consumption of arthropods and seeds at a regional scale, and evaluated the composition of the granivorous component of the diet and the seed dietary breadth. Ringed Warbling-Finches had a granivorous–insectivorous diet consistinglargely of arthropods in summer and seeds and arthropods in winter. The granivorous component of the diet consisted mainly of grass seeds, but with low breadth of the winter seed diet. To deal with seasonal variation in the availability of food resources, Ringed Warbling-Finches switched opportunistically between different resources, exploiting alternating seasonal patterns of food abundance. This seasonal switching is a wellestablished strategy in the behaviour of the species and was observed in all Ringed Warbling-Finch populations studied across the Monte Desert. Our results show the flexibility of foraging strategies of Ringed Warbling-Finches, an opportunist species that adjusts their relative consumption of seeds and arthropods in response to the spatial and temporal variations in these food resources.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
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/11336/12504
Sánchez, Rocío; Blendinger, Pedro Gerardo; Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands; Csiro Publishing; Emu; 114; 3; 3-2014; 229-233
0158-4197
url http://hdl.handle.net/11336/12504
identifier_str_mv Sánchez, Rocío; Blendinger, Pedro Gerardo; Trophic ecology of the Ringed Warbling-Finch (Poospiza torquata) in Neotropical semi-arid scrublands; Csiro Publishing; Emu; 114; 3; 3-2014; 229-233
0158-4197
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1071/MU13082
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mu/MU13082
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1071/MU13082
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 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 12.982451

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