Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley

Autores
Quiroga, Martin Anibal; Leon, Evelina Jesica; Olguin, Pamela Fernanda; Beltzer, Adolfo Hector
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analysed the feeding ecology of Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (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, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 16 taxonomic entities, mainly fishes (IRI = 9,100), followed by insects (IRI = 1,650) and crustaceans (IRI = 600). The highest percentage of prey size was found in the interval 61 - >80 mm. The amplitude of the trophic niche ranged between 2.55 and 5.22, and the feeding efficiency between 92.3% and 99%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded significant results (r = 0.41, P > 0.001). The rhythm of feeding activity showed high activity very early in the morning, decreasing towards noon and raising again at dusk. Grasslands and Aquatic vegetation were units of vegetation and environment selected more frequently
Nycticorax necticorax'ın beslenme ekolojisi Carabajal Adası'ndan (Santa Fe, 31o32' S, 60o42' W) yakalanan 40 bireye dayalı olarak incelenmiştir. Minimum örnek, bağıl önem indeksi(IRI), yem boyutu, beslenme randımanı, diyet seçiciliği, trofik niş amplitüdü, beslenme aktivitesinin sirkadyen ritmi ve habitat tercihi tespit edilmiştir. Trofik spektrum 16 taksonomik entiteden oluşmaktadır. Önce balıklar(IRI=9.100), sonra böcekler(IR I=1.650) ve kabuklular(IRI=600) gelmektedir. Yem boyutu en fazla 61-80 mm aralığındadır. Trofik niş amplitüdü 2.55-5.22 aralığında, beslenme randımanı %92,3-%99 aralığındadır. Diyet seçiciliğiyle ilgili olarak yemin midedeki ve araştırma alanındaki bulunma bolluğu arasındaki korelasyon önemli bulunmuştur(r=0,41, P>0,001). Beslenme aktivitesinin ritmi sabahın erken saatlerinde yüksek olup, öğleye doğru azalamakta ve akşam vakti tekrar yükselmektedir. Vejetasyon ve çevre olarak en fazla çayırlar ve sucul vejetasyon tercih edilmiştir.
Fil: Quiroga, Martin Anibal. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecologia de Enfermedades; Argentina. Universidad Autonoma de Entre Rios. Fac de Ciencia y Tecnologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Leon, Evelina Jesica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
Fil: Olguin, Pamela Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
Fil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
Materia
Nycticorax nycticorax
Feeding ecology
Wetlands
Paraná river
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:11336/1626
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/1626
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valleyQuiroga, Martin AnibalLeon, Evelina JesicaOlguin, Pamela FernandaBeltzer, Adolfo HectorNycticorax nycticoraxFeeding ecologyWetlandsParaná riverhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analysed the feeding ecology of Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (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, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 16 taxonomic entities, mainly fishes (IRI = 9,100), followed by insects (IRI = 1,650) and crustaceans (IRI = 600). The highest percentage of prey size was found in the interval 61 - >80 mm. The amplitude of the trophic niche ranged between 2.55 and 5.22, and the feeding efficiency between 92.3% and 99%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded significant results (r = 0.41, P > 0.001). The rhythm of feeding activity showed high activity very early in the morning, decreasing towards noon and raising again at dusk. Grasslands and Aquatic vegetation were units of vegetation and environment selected more frequentlyNycticorax necticorax'ın beslenme ekolojisi Carabajal Adası'ndan (Santa Fe, 31o32' S, 60o42' W) yakalanan 40 bireye dayalı olarak incelenmiştir. Minimum örnek, bağıl önem indeksi(IRI), yem boyutu, beslenme randımanı, diyet seçiciliği, trofik niş amplitüdü, beslenme aktivitesinin sirkadyen ritmi ve habitat tercihi tespit edilmiştir. Trofik spektrum 16 taksonomik entiteden oluşmaktadır. Önce balıklar(IRI=9.100), sonra böcekler(IR I=1.650) ve kabuklular(IRI=600) gelmektedir. Yem boyutu en fazla 61-80 mm aralığındadır. Trofik niş amplitüdü 2.55-5.22 aralığında, beslenme randımanı %92,3-%99 aralığındadır. Diyet seçiciliğiyle ilgili olarak yemin midedeki ve araştırma alanındaki bulunma bolluğu arasındaki korelasyon önemli bulunmuştur(r=0,41, P>0,001). Beslenme aktivitesinin ritmi sabahın erken saatlerinde yüksek olup, öğleye doğru azalamakta ve akşam vakti tekrar yükselmektedir. Vejetasyon ve çevre olarak en fazla çayırlar ve sucul vejetasyon tercih edilmiştir.Fil: Quiroga, Martin Anibal. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecologia de Enfermedades; Argentina. Universidad Autonoma de Entre Rios. Fac de Ciencia y Tecnologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Leon, Evelina Jesica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); ArgentinaFil: Olguin, Pamela Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); ArgentinaFil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); ArgentinaDokuz Eylul Univ2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1626Quiroga, Martin Anibal; Leon, Evelina Jesica; Olguin, Pamela Fernanda; Beltzer, Adolfo Hector; Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley; Dokuz Eylul Univ; Ekoloji; 10-2013; 43-501300-1361https://www.ekoloji.com.tr/resimler/88-6.pdfenginfo:eu-repo/semantics/altIdentifier/doi/10.5053/ekoloji.2013.886info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:41Zoai:ri.conicet.gov.ar:11336/1626instacron: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 10:20:41.579CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
title Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
spellingShingle Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
Quiroga, Martin Anibal
Nycticorax nycticorax
Feeding ecology
Wetlands
Paraná river
title_short Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
title_full Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
title_fullStr Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
title_full_unstemmed Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
title_sort Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley
dc.creator.none.fl_str_mv Quiroga, Martin Anibal
Leon, Evelina Jesica
Olguin, Pamela Fernanda
Beltzer, Adolfo Hector
author Quiroga, Martin Anibal
author_facet Quiroga, Martin Anibal
Leon, Evelina Jesica
Olguin, Pamela Fernanda
Beltzer, Adolfo Hector
author_role author
author2 Leon, Evelina Jesica
Olguin, Pamela Fernanda
Beltzer, Adolfo Hector
author2_role author
author
author
dc.subject.none.fl_str_mv Nycticorax nycticorax
Feeding ecology
Wetlands
Paraná river
topic Nycticorax nycticorax
Feeding ecology
Wetlands
Paraná river
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 Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (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, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 16 taxonomic entities, mainly fishes (IRI = 9,100), followed by insects (IRI = 1,650) and crustaceans (IRI = 600). The highest percentage of prey size was found in the interval 61 - >80 mm. The amplitude of the trophic niche ranged between 2.55 and 5.22, and the feeding efficiency between 92.3% and 99%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded significant results (r = 0.41, P > 0.001). The rhythm of feeding activity showed high activity very early in the morning, decreasing towards noon and raising again at dusk. Grasslands and Aquatic vegetation were units of vegetation and environment selected more frequently
Nycticorax necticorax'ın beslenme ekolojisi Carabajal Adası'ndan (Santa Fe, 31o32' S, 60o42' W) yakalanan 40 bireye dayalı olarak incelenmiştir. Minimum örnek, bağıl önem indeksi(IRI), yem boyutu, beslenme randımanı, diyet seçiciliği, trofik niş amplitüdü, beslenme aktivitesinin sirkadyen ritmi ve habitat tercihi tespit edilmiştir. Trofik spektrum 16 taksonomik entiteden oluşmaktadır. Önce balıklar(IRI=9.100), sonra böcekler(IR I=1.650) ve kabuklular(IRI=600) gelmektedir. Yem boyutu en fazla 61-80 mm aralığındadır. Trofik niş amplitüdü 2.55-5.22 aralığında, beslenme randımanı %92,3-%99 aralığındadır. Diyet seçiciliğiyle ilgili olarak yemin midedeki ve araştırma alanındaki bulunma bolluğu arasındaki korelasyon önemli bulunmuştur(r=0,41, P>0,001). Beslenme aktivitesinin ritmi sabahın erken saatlerinde yüksek olup, öğleye doğru azalamakta ve akşam vakti tekrar yükselmektedir. Vejetasyon ve çevre olarak en fazla çayırlar ve sucul vejetasyon tercih edilmiştir.
Fil: Quiroga, Martin Anibal. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecologia de Enfermedades; Argentina. Universidad Autonoma de Entre Rios. Fac de Ciencia y Tecnologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Leon, Evelina Jesica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
Fil: Olguin, Pamela Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
Fil: Beltzer, Adolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto Nacional de Limnologia (i); Argentina
description We analysed the feeding ecology of Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (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, circadian rhythm of feeding activity and habitat preference. The trophic spectrum was made up of 16 taxonomic entities, mainly fishes (IRI = 9,100), followed by insects (IRI = 1,650) and crustaceans (IRI = 600). The highest percentage of prey size was found in the interval 61 - >80 mm. The amplitude of the trophic niche ranged between 2.55 and 5.22, and the feeding efficiency between 92.3% and 99%. In relation to dietary selectivity, the correlation between abundance of prey in stomachs and abundance of prey in the study area yielded significant results (r = 0.41, P > 0.001). The rhythm of feeding activity showed high activity very early in the morning, decreasing towards noon and raising again at dusk. Grasslands and Aquatic vegetation were units of vegetation and environment selected more frequently
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/1626
Quiroga, Martin Anibal; Leon, Evelina Jesica; Olguin, Pamela Fernanda; Beltzer, Adolfo Hector; Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley; Dokuz Eylul Univ; Ekoloji; 10-2013; 43-50
1300-1361
https://www.ekoloji.com.tr/resimler/88-6.pdf
url http://hdl.handle.net/11336/1626
https://www.ekoloji.com.tr/resimler/88-6.pdf
identifier_str_mv Quiroga, Martin Anibal; Leon, Evelina Jesica; Olguin, Pamela Fernanda; Beltzer, Adolfo Hector; Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley; Dokuz Eylul Univ; Ekoloji; 10-2013; 43-50
1300-1361
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5053/ekoloji.2013.886
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 Dokuz Eylul Univ
publisher.none.fl_str_mv Dokuz Eylul Univ
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 13.069144

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