Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams

Autores
Sanchez, Rocio Maria; Semeñiuk, María Belén; Cassano, María Julia; Alcalde, Leandro
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Dietary studies provide data about the biology of species such as food specialization, spatial and temporal feeding variation, and adaptations to different habitat characteristics. We analyzed the diet of the South American snake-necked turtle Hydromedusa tectifera using complementary techniques (stomach flushing and feces collection) from two urban watercourses in La Plata city (Buenos Aires, Argentina), one more natural and other more polluted. The Index of Relative Importance (IRI) was calculated to assess the contribution of each prey to the diet, and the Index of Electivity (E) to evaluate food selection. In general, H. tectifera displayed a generalist carnivorous habit with clear adaptations to variations in the environments in which this species lives. The diet composition showed marked differences between the two streams: in the more impacted watercourse, amphipods, aquatic coleopterans, and water bugs of the family Belostomatidae were the main items, while in the less anthropogenically disturbed one, aquatic snails dominated the turtles? diet. Our results highlight the importance of combining stomach flushing and fecal collection techniques to achieve a better trophic characterization and to avoid biased conclusions.
Fil: Sanchez, Rocio Maria. 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: Semeñiuk, María Belén. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cassano, María Julia. 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: 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
Materia
Argentine snake-necked turtle
diet composition
prey selection
urban environment
feces
stomach flushing
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:11336/158729
Acceder
id CONICETDig_90f148971fe25c25f81b60472d90efbb
oai_identifier_str oai:ri.conicet.gov.ar:11336/158729
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streamsSanchez, Rocio MariaSemeñiuk, María BelénCassano, María JuliaAlcalde, LeandroArgentine snake-necked turtlediet compositionprey selectionurban environmentfecesstomach flushinghttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Dietary studies provide data about the biology of species such as food specialization, spatial and temporal feeding variation, and adaptations to different habitat characteristics. We analyzed the diet of the South American snake-necked turtle Hydromedusa tectifera using complementary techniques (stomach flushing and feces collection) from two urban watercourses in La Plata city (Buenos Aires, Argentina), one more natural and other more polluted. The Index of Relative Importance (IRI) was calculated to assess the contribution of each prey to the diet, and the Index of Electivity (E) to evaluate food selection. In general, H. tectifera displayed a generalist carnivorous habit with clear adaptations to variations in the environments in which this species lives. The diet composition showed marked differences between the two streams: in the more impacted watercourse, amphipods, aquatic coleopterans, and water bugs of the family Belostomatidae were the main items, while in the less anthropogenically disturbed one, aquatic snails dominated the turtles? diet. Our results highlight the importance of combining stomach flushing and fecal collection techniques to achieve a better trophic characterization and to avoid biased conclusions.Fil: Sanchez, Rocio Maria. 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: Semeñiuk, María Belén. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cassano, María Julia. 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: 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; ArgentinaUniversity of Oradea Publishing House2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/158729Sanchez, Rocio Maria; Semeñiuk, María Belén; Cassano, María Julia; Alcalde, Leandro; Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams; University of Oradea Publishing House; North Western Journal of Zoology; 17; 2; 12-2021; 212-2191584-9074CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://biozoojournals.ro/nwjz/content/v17n2/nwjz_e211509_Sanchez.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:45Zoai:ri.conicet.gov.ar:11336/158729instacron: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 10:11:45.774CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
title Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
spellingShingle Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
Sanchez, Rocio Maria
Argentine snake-necked turtle
diet composition
prey selection
urban environment
feces
stomach flushing
title_short Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
title_full Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
title_fullStr Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
title_full_unstemmed Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
title_sort Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams
dc.creator.none.fl_str_mv Sanchez, Rocio Maria
Semeñiuk, María Belén
Cassano, María Julia
Alcalde, Leandro
author Sanchez, Rocio Maria
author_facet Sanchez, Rocio Maria
Semeñiuk, María Belén
Cassano, María Julia
Alcalde, Leandro
author_role author
author2 Semeñiuk, María Belén
Cassano, María Julia
Alcalde, Leandro
author2_role author
author
author
dc.subject.none.fl_str_mv Argentine snake-necked turtle
diet composition
prey selection
urban environment
feces
stomach flushing
topic Argentine snake-necked turtle
diet composition
prey selection
urban environment
feces
stomach flushing
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Dietary studies provide data about the biology of species such as food specialization, spatial and temporal feeding variation, and adaptations to different habitat characteristics. We analyzed the diet of the South American snake-necked turtle Hydromedusa tectifera using complementary techniques (stomach flushing and feces collection) from two urban watercourses in La Plata city (Buenos Aires, Argentina), one more natural and other more polluted. The Index of Relative Importance (IRI) was calculated to assess the contribution of each prey to the diet, and the Index of Electivity (E) to evaluate food selection. In general, H. tectifera displayed a generalist carnivorous habit with clear adaptations to variations in the environments in which this species lives. The diet composition showed marked differences between the two streams: in the more impacted watercourse, amphipods, aquatic coleopterans, and water bugs of the family Belostomatidae were the main items, while in the less anthropogenically disturbed one, aquatic snails dominated the turtles? diet. Our results highlight the importance of combining stomach flushing and fecal collection techniques to achieve a better trophic characterization and to avoid biased conclusions.
Fil: Sanchez, Rocio Maria. 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: Semeñiuk, María Belén. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cassano, María Julia. 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: 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
description Dietary studies provide data about the biology of species such as food specialization, spatial and temporal feeding variation, and adaptations to different habitat characteristics. We analyzed the diet of the South American snake-necked turtle Hydromedusa tectifera using complementary techniques (stomach flushing and feces collection) from two urban watercourses in La Plata city (Buenos Aires, Argentina), one more natural and other more polluted. The Index of Relative Importance (IRI) was calculated to assess the contribution of each prey to the diet, and the Index of Electivity (E) to evaluate food selection. In general, H. tectifera displayed a generalist carnivorous habit with clear adaptations to variations in the environments in which this species lives. The diet composition showed marked differences between the two streams: in the more impacted watercourse, amphipods, aquatic coleopterans, and water bugs of the family Belostomatidae were the main items, while in the less anthropogenically disturbed one, aquatic snails dominated the turtles? diet. Our results highlight the importance of combining stomach flushing and fecal collection techniques to achieve a better trophic characterization and to avoid biased conclusions.
publishDate 2021
dc.date.none.fl_str_mv 2021-12
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/11336/158729
Sanchez, Rocio Maria; Semeñiuk, María Belén; Cassano, María Julia; Alcalde, Leandro; Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams; University of Oradea Publishing House; North Western Journal of Zoology; 17; 2; 12-2021; 212-219
1584-9074
CONICET Digital
CONICET
url http://hdl.handle.net/11336/158729
identifier_str_mv Sanchez, Rocio Maria; Semeñiuk, María Belén; Cassano, María Julia; Alcalde, Leandro; Diet variation of the South American snake-necked turtle (Hydromedusa tectifera) from two different urban neighboring streams; University of Oradea Publishing House; North Western Journal of Zoology; 17; 2; 12-2021; 212-219
1584-9074
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://biozoojournals.ro/nwjz/content/v17n2/nwjz_e211509_Sanchez.pdf
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 University of Oradea Publishing House
publisher.none.fl_str_mv University of Oradea Publishing House
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_ 1844614019339517952
score 13.070432

Publicaciones similares