Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)

Autores
Alcalde, Leandro; Derocco, Natacha Nara; Rosset, Sergio Daniel
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Stomach contents were obtained from 25 Hydromedusa tectifera and 47 Phrynops hilarii that live in syntopy in a pampasic stream in Buenos Aires province, Argentina. Both species are arthropod consumers. Copepods, ostracods, and hemipterans are the preferred items for P. hilarii, and H. tectifera prefers copepods, ostracods, immature dipterans (mainly chironomids), and ephemeropteran larvae. Items that most contribute to the diet of both species are immature chironomids, corixids, and belostomatids. Available food varies little among seasons, being slightly lower in winter months and part of the summer. Diet diversity changes by seasonal variation of prey item abundance in the diet of both species. Diet diversity is higher for P. hilarii (more generalist and broader trophic niche) than in H. tectifera, but there is no niche overlap between them. No significant correlation between the size of turtles and length of prey items was found. There is no evidence that the long neck of H. tectifera relates to piscivorous habits, because fish are a small fraction of its diet and arthropods constitute the bulk of the ingested items.
Fil: Alcalde, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Derocco, Natacha Nara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Rosset, Sergio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Materia
Reptilia
Testudines
Pleurodira
Chelidae
Hydromedusa Tectifera
Phrynops Hilarii
Diet
Feeding
Piscivory
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:11336/24399
Acceder
id CONICETDig_e5d8689fe61392ebd08fa4691d7389bf
oai_identifier_str oai:ri.conicet.gov.ar:11336/24399
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)Alcalde, LeandroDerocco, Natacha NaraRosset, Sergio DanielReptiliaTestudinesPleurodiraChelidaeHydromedusa TectiferaPhrynops HilariiDietFeedingPiscivoryArgentinahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Stomach contents were obtained from 25 Hydromedusa tectifera and 47 Phrynops hilarii that live in syntopy in a pampasic stream in Buenos Aires province, Argentina. Both species are arthropod consumers. Copepods, ostracods, and hemipterans are the preferred items for P. hilarii, and H. tectifera prefers copepods, ostracods, immature dipterans (mainly chironomids), and ephemeropteran larvae. Items that most contribute to the diet of both species are immature chironomids, corixids, and belostomatids. Available food varies little among seasons, being slightly lower in winter months and part of the summer. Diet diversity changes by seasonal variation of prey item abundance in the diet of both species. Diet diversity is higher for P. hilarii (more generalist and broader trophic niche) than in H. tectifera, but there is no niche overlap between them. No significant correlation between the size of turtles and length of prey items was found. There is no evidence that the long neck of H. tectifera relates to piscivorous habits, because fish are a small fraction of its diet and arthropods constitute the bulk of the ingested items.Fil: Alcalde, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Derocco, Natacha Nara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Rosset, Sergio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaChelonian Research Foundation2010-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24399Alcalde, Leandro; Derocco, Natacha Nara; Rosset, Sergio Daniel; Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae); Chelonian Research Foundation; Chelonian Conservation And Biology; 9; 1; 7-2010; 33-441071-84431943-3956CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.2744/CCB-0794.1info:eu-repo/semantics/altIdentifier/doi/10.2744/CCB-0794.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:42:21Zoai:ri.conicet.gov.ar:11336/24399instacron: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 10:42:21.734CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
title Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
spellingShingle Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
Alcalde, Leandro
Reptilia
Testudines
Pleurodira
Chelidae
Hydromedusa Tectifera
Phrynops Hilarii
Diet
Feeding
Piscivory
Argentina
title_short Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
title_full Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
title_fullStr Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
title_full_unstemmed Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
title_sort Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)
dc.creator.none.fl_str_mv Alcalde, Leandro
Derocco, Natacha Nara
Rosset, Sergio Daniel
author Alcalde, Leandro
author_facet Alcalde, Leandro
Derocco, Natacha Nara
Rosset, Sergio Daniel
author_role author
author2 Derocco, Natacha Nara
Rosset, Sergio Daniel
author2_role author
author
dc.subject.none.fl_str_mv Reptilia
Testudines
Pleurodira
Chelidae
Hydromedusa Tectifera
Phrynops Hilarii
Diet
Feeding
Piscivory
Argentina
topic Reptilia
Testudines
Pleurodira
Chelidae
Hydromedusa Tectifera
Phrynops Hilarii
Diet
Feeding
Piscivory
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 Stomach contents were obtained from 25 Hydromedusa tectifera and 47 Phrynops hilarii that live in syntopy in a pampasic stream in Buenos Aires province, Argentina. Both species are arthropod consumers. Copepods, ostracods, and hemipterans are the preferred items for P. hilarii, and H. tectifera prefers copepods, ostracods, immature dipterans (mainly chironomids), and ephemeropteran larvae. Items that most contribute to the diet of both species are immature chironomids, corixids, and belostomatids. Available food varies little among seasons, being slightly lower in winter months and part of the summer. Diet diversity changes by seasonal variation of prey item abundance in the diet of both species. Diet diversity is higher for P. hilarii (more generalist and broader trophic niche) than in H. tectifera, but there is no niche overlap between them. No significant correlation between the size of turtles and length of prey items was found. There is no evidence that the long neck of H. tectifera relates to piscivorous habits, because fish are a small fraction of its diet and arthropods constitute the bulk of the ingested items.
Fil: Alcalde, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Derocco, Natacha Nara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Rosset, Sergio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
description Stomach contents were obtained from 25 Hydromedusa tectifera and 47 Phrynops hilarii that live in syntopy in a pampasic stream in Buenos Aires province, Argentina. Both species are arthropod consumers. Copepods, ostracods, and hemipterans are the preferred items for P. hilarii, and H. tectifera prefers copepods, ostracods, immature dipterans (mainly chironomids), and ephemeropteran larvae. Items that most contribute to the diet of both species are immature chironomids, corixids, and belostomatids. Available food varies little among seasons, being slightly lower in winter months and part of the summer. Diet diversity changes by seasonal variation of prey item abundance in the diet of both species. Diet diversity is higher for P. hilarii (more generalist and broader trophic niche) than in H. tectifera, but there is no niche overlap between them. No significant correlation between the size of turtles and length of prey items was found. There is no evidence that the long neck of H. tectifera relates to piscivorous habits, because fish are a small fraction of its diet and arthropods constitute the bulk of the ingested items.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
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/11336/24399
Alcalde, Leandro; Derocco, Natacha Nara; Rosset, Sergio Daniel; Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae); Chelonian Research Foundation; Chelonian Conservation And Biology; 9; 1; 7-2010; 33-44
1071-8443
1943-3956
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24399
identifier_str_mv Alcalde, Leandro; Derocco, Natacha Nara; Rosset, Sergio Daniel; Feeding in syntopy: diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae); Chelonian Research Foundation; Chelonian Conservation And Biology; 9; 1; 7-2010; 33-44
1071-8443
1943-3956
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.2744/CCB-0794.1
info:eu-repo/semantics/altIdentifier/doi/10.2744/CCB-0794.1
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Chelonian Research Foundation
publisher.none.fl_str_mv Chelonian Research Foundation
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_ 1844614456326225920
score 13.070432

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