Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia

Autores
Pedrana, Julieta; Bustamante, Javier; Travaini, Alejandro; Rodrguez, Alejandro; Zapata, Sonia Cristina; Zanón Martínez, Juan Ignacio; Procopio, Diego Esteban
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Lesser Rhea (Rhea pennata pennata) has suffered a marked decline in numbers over recent decades, probably mainly as a result of livestock production and overhunting. Our aim was to investigate the factors that determine the distribution of Lesser Rheas in southern Patagonia and to generate a predictive regional distribution map. We surveyed 8000km of roads and sighted 795 Lesser Rhea individuals or flocks. We also estimated environmental predictors from remotely sensed data and analysed the occurrence of Lesser Rheas in relation to these predictors. The predictors we examined were associated with four hypotheses explaining the distribution of Lesser Rheas: the persecution by ranchers, primary productivity, topography, and anthropogenic disturbance hypotheses. We built models for each hypothesis. Our results suggest that the distribution of Lesser Rheas is not negatively affected by persecution by ranchers, as the species is more abundant in areas with high stocking levels of sheep, but is positively influenced by primary productivity and negatively by the proximity of human habitation. The resulting distribution map can be used as a management tool for government agencies and highlights the conservation priorities for managing this declining and emblematic species.
Fil: Pedrana, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Bustamante, Javier. Consejo Superior de Investigaciones Científicas; España
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Rodrguez, Alejandro. Consejo Superior de Investigaciones Científicas; España
Fil: Zapata, Sonia Cristina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Zanón Martínez, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Procopio, Diego Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Materia
Argentina
Large-Scale Habitat Models
Ratite Ecology
Species Distribution Maps
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:11336/81613
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/81613
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern PatagoniaPedrana, JulietaBustamante, JavierTravaini, AlejandroRodrguez, AlejandroZapata, Sonia CristinaZanón Martínez, Juan IgnacioProcopio, Diego EstebanArgentinaLarge-Scale Habitat ModelsRatite EcologySpecies Distribution Mapshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Lesser Rhea (Rhea pennata pennata) has suffered a marked decline in numbers over recent decades, probably mainly as a result of livestock production and overhunting. Our aim was to investigate the factors that determine the distribution of Lesser Rheas in southern Patagonia and to generate a predictive regional distribution map. We surveyed 8000km of roads and sighted 795 Lesser Rhea individuals or flocks. We also estimated environmental predictors from remotely sensed data and analysed the occurrence of Lesser Rheas in relation to these predictors. The predictors we examined were associated with four hypotheses explaining the distribution of Lesser Rheas: the persecution by ranchers, primary productivity, topography, and anthropogenic disturbance hypotheses. We built models for each hypothesis. Our results suggest that the distribution of Lesser Rheas is not negatively affected by persecution by ranchers, as the species is more abundant in areas with high stocking levels of sheep, but is positively influenced by primary productivity and negatively by the proximity of human habitation. The resulting distribution map can be used as a management tool for government agencies and highlights the conservation priorities for managing this declining and emblematic species.Fil: Pedrana, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Bustamante, Javier. Consejo Superior de Investigaciones Científicas; EspañaFil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Rodrguez, Alejandro. Consejo Superior de Investigaciones Científicas; EspañaFil: Zapata, Sonia Cristina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Zanón Martínez, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaFil: Procopio, Diego Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; ArgentinaTaylor & Francis2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81613Pedrana, Julieta; Bustamante, Javier; Travaini, Alejandro; Rodrguez, Alejandro; Zapata, Sonia Cristina; et al.; Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia; Taylor & Francis; Emu; 111; 4; 11-2011; 350-3590158-4197CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1071/MU11007info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1071/MU11007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:55Zoai:ri.conicet.gov.ar:11336/81613instacron: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 10:24:55.442CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
title Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
spellingShingle Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
Pedrana, Julieta
Argentina
Large-Scale Habitat Models
Ratite Ecology
Species Distribution Maps
title_short Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
title_full Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
title_fullStr Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
title_full_unstemmed Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
title_sort Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia
dc.creator.none.fl_str_mv Pedrana, Julieta
Bustamante, Javier
Travaini, Alejandro
Rodrguez, Alejandro
Zapata, Sonia Cristina
Zanón Martínez, Juan Ignacio
Procopio, Diego Esteban
author Pedrana, Julieta
author_facet Pedrana, Julieta
Bustamante, Javier
Travaini, Alejandro
Rodrguez, Alejandro
Zapata, Sonia Cristina
Zanón Martínez, Juan Ignacio
Procopio, Diego Esteban
author_role author
author2 Bustamante, Javier
Travaini, Alejandro
Rodrguez, Alejandro
Zapata, Sonia Cristina
Zanón Martínez, Juan Ignacio
Procopio, Diego Esteban
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Argentina
Large-Scale Habitat Models
Ratite Ecology
Species Distribution Maps
topic Argentina
Large-Scale Habitat Models
Ratite Ecology
Species Distribution Maps
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Lesser Rhea (Rhea pennata pennata) has suffered a marked decline in numbers over recent decades, probably mainly as a result of livestock production and overhunting. Our aim was to investigate the factors that determine the distribution of Lesser Rheas in southern Patagonia and to generate a predictive regional distribution map. We surveyed 8000km of roads and sighted 795 Lesser Rhea individuals or flocks. We also estimated environmental predictors from remotely sensed data and analysed the occurrence of Lesser Rheas in relation to these predictors. The predictors we examined were associated with four hypotheses explaining the distribution of Lesser Rheas: the persecution by ranchers, primary productivity, topography, and anthropogenic disturbance hypotheses. We built models for each hypothesis. Our results suggest that the distribution of Lesser Rheas is not negatively affected by persecution by ranchers, as the species is more abundant in areas with high stocking levels of sheep, but is positively influenced by primary productivity and negatively by the proximity of human habitation. The resulting distribution map can be used as a management tool for government agencies and highlights the conservation priorities for managing this declining and emblematic species.
Fil: Pedrana, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Bustamante, Javier. Consejo Superior de Investigaciones Científicas; España
Fil: Travaini, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Rodrguez, Alejandro. Consejo Superior de Investigaciones Científicas; España
Fil: Zapata, Sonia Cristina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Zanón Martínez, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
Fil: Procopio, Diego Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
description The Lesser Rhea (Rhea pennata pennata) has suffered a marked decline in numbers over recent decades, probably mainly as a result of livestock production and overhunting. Our aim was to investigate the factors that determine the distribution of Lesser Rheas in southern Patagonia and to generate a predictive regional distribution map. We surveyed 8000km of roads and sighted 795 Lesser Rhea individuals or flocks. We also estimated environmental predictors from remotely sensed data and analysed the occurrence of Lesser Rheas in relation to these predictors. The predictors we examined were associated with four hypotheses explaining the distribution of Lesser Rheas: the persecution by ranchers, primary productivity, topography, and anthropogenic disturbance hypotheses. We built models for each hypothesis. Our results suggest that the distribution of Lesser Rheas is not negatively affected by persecution by ranchers, as the species is more abundant in areas with high stocking levels of sheep, but is positively influenced by primary productivity and negatively by the proximity of human habitation. The resulting distribution map can be used as a management tool for government agencies and highlights the conservation priorities for managing this declining and emblematic species.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/81613
Pedrana, Julieta; Bustamante, Javier; Travaini, Alejandro; Rodrguez, Alejandro; Zapata, Sonia Cristina; et al.; Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia; Taylor & Francis; Emu; 111; 4; 11-2011; 350-359
0158-4197
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81613
identifier_str_mv Pedrana, Julieta; Bustamante, Javier; Travaini, Alejandro; Rodrguez, Alejandro; Zapata, Sonia Cristina; et al.; Environmental factors influencing the distribution of the Lesser Rhea (Rhea pennata pennata) in southern Patagonia; Taylor & Francis; Emu; 111; 4; 11-2011; 350-359
0158-4197
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1071/MU11007
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1071/MU11007
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
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
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_ 1844614246884704256
score 13.070432

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