Resource partitioning in a snake assemblage from east-central Argentina

Autores
Di Pietro, Diego Omar; Williams, Jorge Daniel; Cabrera, Mario Roberto; Alcalde, Leandro; Cajade, Rodrigo; Kacoliris, Federico Pablo
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed in 15-week study periods between 2010 and 2014. Snakes were hand-captured using transect surveys. Field observations on diet were analyzed together with stomach content data from museum specimens. Our results supported the partitioning of the snake assemblage by both habitat use and diet into at least three functional groups: species restricted to microhabitats under rocks and with a diet composed exclusively of ants (Epictia australis); species found mostly in stream microhabitats and feeding mainly upon anurans (Erythrolamprus poecilogyrus and Lygophis elegantissimus); and species found mostly in grassland microhabitats, with specialized diets of terrestrial prey items (Philodryas patagoniensis and Bothrops alternatus). Consistent with previous work, diet was more important than habitat in explaining ecological niche partitioning of this snake assemblage. Our results showed that high overlap values of microhabitat use were compensated by low overlap values of the trophic niche dimension, thus matching the traditional complementary niches hypothesis.
Facultad de Ciencias Naturales y Museo
Instituto de Limnología "Dr. Raúl A. Ringuelet"
Materia
Ciencias Naturales
diet
foraging strategies
microhabitat use
niche overlap
snake assemblages
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/124877
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/124877
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Resource partitioning in a snake assemblage from east-central ArgentinaDi Pietro, Diego OmarWilliams, Jorge DanielCabrera, Mario RobertoAlcalde, LeandroCajade, RodrigoKacoliris, Federico PabloCiencias Naturalesdietforaging strategiesmicrohabitat useniche overlapsnake assemblagesTwo dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed in 15-week study periods between 2010 and 2014. Snakes were hand-captured using transect surveys. Field observations on diet were analyzed together with stomach content data from museum specimens. Our results supported the partitioning of the snake assemblage by both habitat use and diet into at least three functional groups: species restricted to microhabitats under rocks and with a diet composed exclusively of ants (<i>Epictia australis</i>); species found mostly in stream microhabitats and feeding mainly upon anurans (<i>Erythrolamprus poecilogyrus</i> and <i>Lygophis elegantissimus</i>); and species found mostly in grassland microhabitats, with specialized diets of terrestrial prey items (<i>Philodryas patagoniensis</i> and <i>Bothrops alternatus</i>). Consistent with previous work, diet was more important than habitat in explaining ecological niche partitioning of this snake assemblage. Our results showed that high overlap values of microhabitat use were compensated by low overlap values of the trophic niche dimension, thus matching the traditional complementary niches hypothesis.Facultad de Ciencias Naturales y MuseoInstituto de Limnología "Dr. Raúl A. Ringuelet"2020-06-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/124877enginfo:eu-repo/semantics/altIdentifier/issn/1678-2690info:eu-repo/semantics/altIdentifier/issn/0001-3765info:eu-repo/semantics/altIdentifier/pmid/32520217info:eu-repo/semantics/altIdentifier/doi/10.1590/0001-3765202020180766info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:10:40Zoai:sedici.unlp.edu.ar:10915/124877Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:10:40.396SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Resource partitioning in a snake assemblage from east-central Argentina
title Resource partitioning in a snake assemblage from east-central Argentina
spellingShingle Resource partitioning in a snake assemblage from east-central Argentina
Di Pietro, Diego Omar
Ciencias Naturales
diet
foraging strategies
microhabitat use
niche overlap
snake assemblages
title_short Resource partitioning in a snake assemblage from east-central Argentina
title_full Resource partitioning in a snake assemblage from east-central Argentina
title_fullStr Resource partitioning in a snake assemblage from east-central Argentina
title_full_unstemmed Resource partitioning in a snake assemblage from east-central Argentina
title_sort Resource partitioning in a snake assemblage from east-central Argentina
dc.creator.none.fl_str_mv Di Pietro, Diego Omar
Williams, Jorge Daniel
Cabrera, Mario Roberto
Alcalde, Leandro
Cajade, Rodrigo
Kacoliris, Federico Pablo
author Di Pietro, Diego Omar
author_facet Di Pietro, Diego Omar
Williams, Jorge Daniel
Cabrera, Mario Roberto
Alcalde, Leandro
Cajade, Rodrigo
Kacoliris, Federico Pablo
author_role author
author2 Williams, Jorge Daniel
Cabrera, Mario Roberto
Alcalde, Leandro
Cajade, Rodrigo
Kacoliris, Federico Pablo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
diet
foraging strategies
microhabitat use
niche overlap
snake assemblages
topic Ciencias Naturales
diet
foraging strategies
microhabitat use
niche overlap
snake assemblages
dc.description.none.fl_txt_mv Two dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed in 15-week study periods between 2010 and 2014. Snakes were hand-captured using transect surveys. Field observations on diet were analyzed together with stomach content data from museum specimens. Our results supported the partitioning of the snake assemblage by both habitat use and diet into at least three functional groups: species restricted to microhabitats under rocks and with a diet composed exclusively of ants (<i>Epictia australis</i>); species found mostly in stream microhabitats and feeding mainly upon anurans (<i>Erythrolamprus poecilogyrus</i> and <i>Lygophis elegantissimus</i>); and species found mostly in grassland microhabitats, with specialized diets of terrestrial prey items (<i>Philodryas patagoniensis</i> and <i>Bothrops alternatus</i>). Consistent with previous work, diet was more important than habitat in explaining ecological niche partitioning of this snake assemblage. Our results showed that high overlap values of microhabitat use were compensated by low overlap values of the trophic niche dimension, thus matching the traditional complementary niches hypothesis.
Facultad de Ciencias Naturales y Museo
Instituto de Limnología "Dr. Raúl A. Ringuelet"
description Two dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed in 15-week study periods between 2010 and 2014. Snakes were hand-captured using transect surveys. Field observations on diet were analyzed together with stomach content data from museum specimens. Our results supported the partitioning of the snake assemblage by both habitat use and diet into at least three functional groups: species restricted to microhabitats under rocks and with a diet composed exclusively of ants (<i>Epictia australis</i>); species found mostly in stream microhabitats and feeding mainly upon anurans (<i>Erythrolamprus poecilogyrus</i> and <i>Lygophis elegantissimus</i>); and species found mostly in grassland microhabitats, with specialized diets of terrestrial prey items (<i>Philodryas patagoniensis</i> and <i>Bothrops alternatus</i>). Consistent with previous work, diet was more important than habitat in explaining ecological niche partitioning of this snake assemblage. Our results showed that high overlap values of microhabitat use were compensated by low overlap values of the trophic niche dimension, thus matching the traditional complementary niches hypothesis.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/124877
url http://sedici.unlp.edu.ar/handle/10915/124877
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1678-2690
info:eu-repo/semantics/altIdentifier/issn/0001-3765
info:eu-repo/semantics/altIdentifier/pmid/32520217
info:eu-repo/semantics/altIdentifier/doi/10.1590/0001-3765202020180766
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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