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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/1626
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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 Técnicas2025-09-03T10:03:29Zoai: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:34982025-09-03 10:03:29.743CONICET 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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1842269803097620480 |
score |
13.13397 |