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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/137552
Ver los metadatos del registro completo
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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 |
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article |
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publishedVersion |
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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 |
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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) |
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openAccess |
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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 |
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