The rainbow trout is affecting the occupancy of native amphibians in Patagonia

Autores
Velasco, Melina Alicia; Berkunsky, Igor; Simoy, María Verónica; Quiroga, Sofía; Bucciarelli, Gary M.; Kats, Lee B.; Kacoliris, Federico Pablo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, we assessed the occupancy of two native amphibian species of the Valcheta stream in the Somuncura Plateau, northern Patagonia: the Valcheta frog, Pleurodema somuncurense and the Argentine common toad, Rhinella arenarum. We hypothesized that the occupancy of both amphibian species will be shaped by the presence of trout; we also expected a decline in occupancy assuming that the new predator in the system will affect native amphibian populations. Between December 2014 and March 2015, we conducted surveys in 148 sites along the headwaters of Valcheta stream. We modelled the occupancy by including the presence of trout, the temperature of water and the coverage of rocks and vegetation as site-habitat covariates. Models including trout were among the best ranked for both amphibian species. The presence of trout reduced the occupancy of both species and the magnitude of this reduction was much higher in the Valcheta frog than in the Argentine common toad. Overall, our results are of great relevance for land managers considering that the Valcheta frog is among the only three IUCN Critically Endangered amphibians in Argentina.
Facultad de Ciencias Naturales y Museo
Materia
Zoología
Exotic invasive species
Occupancy model
Oncorhynchus mykiss
Pleurodema somuncurense
Rhinella arenarum
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137552

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network_name_str SEDICI (UNLP)
spelling The rainbow trout is affecting the occupancy of native amphibians in PatagoniaVelasco, Melina AliciaBerkunsky, IgorSimoy, María VerónicaQuiroga, SofíaBucciarelli, Gary M.Kats, Lee B.Kacoliris, Federico PabloZoologíaExotic invasive speciesOccupancy modelOncorhynchus mykissPleurodema somuncurenseRhinella arenarumIn this work, we assessed the occupancy of two native amphibian species of the Valcheta stream in the Somuncura Plateau, northern Patagonia: the Valcheta frog, Pleurodema somuncurense and the Argentine common toad, Rhinella arenarum. We hypothesized that the occupancy of both amphibian species will be shaped by the presence of trout; we also expected a decline in occupancy assuming that the new predator in the system will affect native amphibian populations. Between December 2014 and March 2015, we conducted surveys in 148 sites along the headwaters of Valcheta stream. We modelled the occupancy by including the presence of trout, the temperature of water and the coverage of rocks and vegetation as site-habitat covariates. Models including trout were among the best ranked for both amphibian species. The presence of trout reduced the occupancy of both species and the magnitude of this reduction was much higher in the Valcheta frog than in the Argentine common toad. Overall, our results are of great relevance for land managers considering that the Valcheta frog is among the only three IUCN Critically Endangered amphibians in Argentina.Facultad de Ciencias Naturales y Museo2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf447-455http://sedici.unlp.edu.ar/handle/10915/137552enginfo:eu-repo/semantics/altIdentifier/issn/0018-8158info:eu-repo/semantics/altIdentifier/issn/1573-5117info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-017-3450-6info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:22Zoai:sedici.unlp.edu.ar:10915/137552Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:22.966SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The rainbow trout is affecting the occupancy of native amphibians in Patagonia
title The rainbow trout is affecting the occupancy of native amphibians in Patagonia
spellingShingle The rainbow trout is affecting the occupancy of native amphibians in Patagonia
Velasco, Melina Alicia
Zoología
Exotic invasive species
Occupancy model
Oncorhynchus mykiss
Pleurodema somuncurense
Rhinella arenarum
title_short The rainbow trout is affecting the occupancy of native amphibians in Patagonia
title_full The rainbow trout is affecting the occupancy of native amphibians in Patagonia
title_fullStr The rainbow trout is affecting the occupancy of native amphibians in Patagonia
title_full_unstemmed The rainbow trout is affecting the occupancy of native amphibians in Patagonia
title_sort The rainbow trout is affecting the occupancy of native amphibians in Patagonia
dc.creator.none.fl_str_mv Velasco, Melina Alicia
Berkunsky, Igor
Simoy, María Verónica
Quiroga, Sofía
Bucciarelli, Gary M.
Kats, Lee B.
Kacoliris, Federico Pablo
author Velasco, Melina Alicia
author_facet Velasco, Melina Alicia
Berkunsky, Igor
Simoy, María Verónica
Quiroga, Sofía
Bucciarelli, Gary M.
Kats, Lee B.
Kacoliris, Federico Pablo
author_role author
author2 Berkunsky, Igor
Simoy, María Verónica
Quiroga, Sofía
Bucciarelli, Gary M.
Kats, Lee B.
Kacoliris, Federico Pablo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Zoología
Exotic invasive species
Occupancy model
Oncorhynchus mykiss
Pleurodema somuncurense
Rhinella arenarum
topic Zoología
Exotic invasive species
Occupancy model
Oncorhynchus mykiss
Pleurodema somuncurense
Rhinella arenarum
dc.description.none.fl_txt_mv In this work, we assessed the occupancy of two native amphibian species of the Valcheta stream in the Somuncura Plateau, northern Patagonia: the Valcheta frog, Pleurodema somuncurense and the Argentine common toad, Rhinella arenarum. We hypothesized that the occupancy of both amphibian species will be shaped by the presence of trout; we also expected a decline in occupancy assuming that the new predator in the system will affect native amphibian populations. Between December 2014 and March 2015, we conducted surveys in 148 sites along the headwaters of Valcheta stream. We modelled the occupancy by including the presence of trout, the temperature of water and the coverage of rocks and vegetation as site-habitat covariates. Models including trout were among the best ranked for both amphibian species. The presence of trout reduced the occupancy of both species and the magnitude of this reduction was much higher in the Valcheta frog than in the Argentine common toad. Overall, our results are of great relevance for land managers considering that the Valcheta frog is among the only three IUCN Critically Endangered amphibians in Argentina.
Facultad de Ciencias Naturales y Museo
description In this work, we assessed the occupancy of two native amphibian species of the Valcheta stream in the Somuncura Plateau, northern Patagonia: the Valcheta frog, Pleurodema somuncurense and the Argentine common toad, Rhinella arenarum. We hypothesized that the occupancy of both amphibian species will be shaped by the presence of trout; we also expected a decline in occupancy assuming that the new predator in the system will affect native amphibian populations. Between December 2014 and March 2015, we conducted surveys in 148 sites along the headwaters of Valcheta stream. We modelled the occupancy by including the presence of trout, the temperature of water and the coverage of rocks and vegetation as site-habitat covariates. Models including trout were among the best ranked for both amphibian species. The presence of trout reduced the occupancy of both species and the magnitude of this reduction was much higher in the Valcheta frog than in the Argentine common toad. Overall, our results are of great relevance for land managers considering that the Valcheta frog is among the only three IUCN Critically Endangered amphibians in Argentina.
publishDate 2018
dc.date.none.fl_str_mv 2018
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/10915/137552
url http://sedici.unlp.edu.ar/handle/10915/137552
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0018-8158
info:eu-repo/semantics/altIdentifier/issn/1573-5117
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10750-017-3450-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
447-455
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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