Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River

Autores
Ducommun, Maria de la Paz; Beltzer, Adolfo Hector; Ronchi Virgolini, Ana Laura; Quiroga, Martin Anibal
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analysed the feeding ecology of Ardea cocoi based on twenty nine individuals captured on the Carabajal island (Santa Fe, 31º39’S, 60º42’W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency, dietary selectivity, amplitude of the trophic niche, standardization, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 17 taxonomic entities, mainly fishes (IRI = 16,000), followed by mammals and amphibians (IRI = 8,000). The highest percentage of prey size was found in the interval 151 -> 200 mm. The amplitude of the trophic niche ranged between 1.98 and 4.21, and the feeding efficiency between 89.9% and 99.9%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded no significant results (rs = 0.078, P > 0.001). The rhythm of feeding activity responded to the bell-shaped model. Aquatic vegetation was the unit of vegetation and environment selected more frequently.
Fil: Ducommun, Maria de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Ronchi Virgolini, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Quiroga, Martin Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Materia
COCOI HERON
ARDEA COCOI
ARDEIDAE
STOMACH CONTENT
DIET
PARANÁ RIVER
SANTA FE
ARGENTINA
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:11336/101213
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/101213
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná RiverDucommun, Maria de la PazBeltzer, Adolfo HectorRonchi Virgolini, Ana LauraQuiroga, Martin AnibalCOCOI HERONARDEA COCOIARDEIDAESTOMACH CONTENTDIETPARANÁ RIVERSANTA FEARGENTINAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analysed the feeding ecology of Ardea cocoi based on twenty nine individuals captured on the Carabajal island (Santa Fe, 31º39’S, 60º42’W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency, dietary selectivity, amplitude of the trophic niche, standardization, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 17 taxonomic entities, mainly fishes (IRI = 16,000), followed by mammals and amphibians (IRI = 8,000). The highest percentage of prey size was found in the interval 151 -> 200 mm. The amplitude of the trophic niche ranged between 1.98 and 4.21, and the feeding efficiency between 89.9% and 99.9%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded no significant results (rs = 0.078, P > 0.001). The rhythm of feeding activity responded to the bell-shaped model. Aquatic vegetation was the unit of vegetation and environment selected more frequently.Fil: Ducommun, Maria de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Ronchi Virgolini, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Quiroga, Martin Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaScience Reviews 2000 Ltd2010-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/101213Ducommun, Maria de la Paz; Beltzer, Adolfo Hector; Ronchi Virgolini, Ana Laura; Quiroga, Martin Anibal; Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River; Science Reviews 2000 Ltd; Avian Biology Research; 3; 3; 9-2010; 115-1211758-1559CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3184/175815510X12823123204658info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:51:01Zoai:ri.conicet.gov.ar:11336/101213instacron: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:34982025-09-03 09:51:01.488CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
title Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
spellingShingle Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
Ducommun, Maria de la Paz
COCOI HERON
ARDEA COCOI
ARDEIDAE
STOMACH CONTENT
DIET
PARANÁ RIVER
SANTA FE
ARGENTINA
title_short Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
title_full Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
title_fullStr Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
title_full_unstemmed Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
title_sort Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River
dc.creator.none.fl_str_mv Ducommun, Maria de la Paz
Beltzer, Adolfo Hector
Ronchi Virgolini, Ana Laura
Quiroga, Martin Anibal
author Ducommun, Maria de la Paz
author_facet Ducommun, Maria de la Paz
Beltzer, Adolfo Hector
Ronchi Virgolini, Ana Laura
Quiroga, Martin Anibal
author_role author
author2 Beltzer, Adolfo Hector
Ronchi Virgolini, Ana Laura
Quiroga, Martin Anibal
author2_role author
author
author
dc.subject.none.fl_str_mv COCOI HERON
ARDEA COCOI
ARDEIDAE
STOMACH CONTENT
DIET
PARANÁ RIVER
SANTA FE
ARGENTINA
topic COCOI HERON
ARDEA COCOI
ARDEIDAE
STOMACH CONTENT
DIET
PARANÁ RIVER
SANTA FE
ARGENTINA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analysed the feeding ecology of Ardea cocoi based on twenty nine individuals captured on the Carabajal island (Santa Fe, 31º39’S, 60º42’W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency, dietary selectivity, amplitude of the trophic niche, standardization, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 17 taxonomic entities, mainly fishes (IRI = 16,000), followed by mammals and amphibians (IRI = 8,000). The highest percentage of prey size was found in the interval 151 -> 200 mm. The amplitude of the trophic niche ranged between 1.98 and 4.21, and the feeding efficiency between 89.9% and 99.9%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded no significant results (rs = 0.078, P > 0.001). The rhythm of feeding activity responded to the bell-shaped model. Aquatic vegetation was the unit of vegetation and environment selected more frequently.
Fil: Ducommun, Maria de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Ronchi Virgolini, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Quiroga, Martin Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
description We analysed the feeding ecology of Ardea cocoi based on twenty nine individuals captured on the Carabajal island (Santa Fe, 31º39’S, 60º42’W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency, dietary selectivity, amplitude of the trophic niche, standardization, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 17 taxonomic entities, mainly fishes (IRI = 16,000), followed by mammals and amphibians (IRI = 8,000). The highest percentage of prey size was found in the interval 151 -> 200 mm. The amplitude of the trophic niche ranged between 1.98 and 4.21, and the feeding efficiency between 89.9% and 99.9%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded no significant results (rs = 0.078, P > 0.001). The rhythm of feeding activity responded to the bell-shaped model. Aquatic vegetation was the unit of vegetation and environment selected more frequently.
publishDate 2010
dc.date.none.fl_str_mv 2010-09
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/11336/101213
Ducommun, Maria de la Paz; Beltzer, Adolfo Hector; Ronchi Virgolini, Ana Laura; Quiroga, Martin Anibal; Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River; Science Reviews 2000 Ltd; Avian Biology Research; 3; 3; 9-2010; 115-121
1758-1559
CONICET Digital
CONICET
url http://hdl.handle.net/11336/101213
identifier_str_mv Ducommun, Maria de la Paz; Beltzer, Adolfo Hector; Ronchi Virgolini, Ana Laura; Quiroga, Martin Anibal; Diet of Cocoi Heron (Ardea cocoi) in the Flood Valley of the Paraná River; Science Reviews 2000 Ltd; Avian Biology Research; 3; 3; 9-2010; 115-121
1758-1559
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3184/175815510X12823123204658
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 Science Reviews 2000 Ltd
publisher.none.fl_str_mv Science Reviews 2000 Ltd
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_ 1842269068080447488
score 13.13397

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