Where do Swainson's hawks winter? Satellite images used to identify potential habitat

Autores
Sarasola, José Hernán; Bustamante, Francisco Javier; Negro Balmaseda, Juan José; Travaini, Alejandro
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During recent years, predictive modelling techniques have been increasingly used to identify regional patterns of species spatial occurrence, to explore species-habitat relationships and to aid in biodiversity conservation. In the case of birds, predictive modelling has been mainly applied to the study of species with little variable interannual patterns of spatial occurrence (e.g. year-round resident species or migratory species in their breeding grounds showing territorial behaviour). We used predictive models to analyse the factors that determine broad-scale patterns of occurrence and abundance of wintering Swainson's hawks (Buteo swainsoni). This species has been the focus of field monitoring in its wintering ground in Argentina due to massive pesticide poisoning of thousands of individuals during the 1990s, but its unpredictable pattern of spatial distribution and the uncertainty about the current wintering area occupied by hawks led to discontinuing such field monitoring. Data on the presence and abundance of hawks were recorded in 30 × 30 km squares (n = 115) surveyed during three austral summers (2001-03). Sixteen land-use/land-cover, topography, and Normalized Difference Vegetation Index (NDVI) variables were used as predictors to build generalized additive models (GAMs). Both occurrence and abundance models showed a good predictive ability. Land use, altitude, and NDVI during spring previous to the arrival of hawks to wintering areas were good predictors of the distribution of Swainson's hawks in the Argentine pampas, but only land use and NDVI were entered into the model of abundance of the species in the region. The predictive cartography developed from the models allowed us to identify the current wintering area of Swainson's hawks in the Argentine pampas. The highest occurrence probability and relative abundances for the species were predicted for a broad area of south-eastern pampas that has been overlooked so far and where neither field research nor conservation efforts aiming to prevent massive mortalities has been established.
Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; España
Fil: Bustamante, Francisco Javier. Consejo Superior de Investigaciones Científicas; España
Fil: Negro Balmaseda, Juan José. 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
Materia
BUTEO SWAINSONI
CONSERVATION PLANNING
LONG-DISTANCE MIGRANT
PREDICTIVE MODELLING
SWAINSON'S HAWK
WINTERING GROUNDS
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:11336/81673

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network_name_str CONICET Digital (CONICET)
spelling Where do Swainson's hawks winter? Satellite images used to identify potential habitatSarasola, José HernánBustamante, Francisco JavierNegro Balmaseda, Juan JoséTravaini, AlejandroBUTEO SWAINSONICONSERVATION PLANNINGLONG-DISTANCE MIGRANTPREDICTIVE MODELLINGSWAINSON'S HAWKWINTERING GROUNDShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1During recent years, predictive modelling techniques have been increasingly used to identify regional patterns of species spatial occurrence, to explore species-habitat relationships and to aid in biodiversity conservation. In the case of birds, predictive modelling has been mainly applied to the study of species with little variable interannual patterns of spatial occurrence (e.g. year-round resident species or migratory species in their breeding grounds showing territorial behaviour). We used predictive models to analyse the factors that determine broad-scale patterns of occurrence and abundance of wintering Swainson's hawks (Buteo swainsoni). This species has been the focus of field monitoring in its wintering ground in Argentina due to massive pesticide poisoning of thousands of individuals during the 1990s, but its unpredictable pattern of spatial distribution and the uncertainty about the current wintering area occupied by hawks led to discontinuing such field monitoring. Data on the presence and abundance of hawks were recorded in 30 × 30 km squares (n = 115) surveyed during three austral summers (2001-03). Sixteen land-use/land-cover, topography, and Normalized Difference Vegetation Index (NDVI) variables were used as predictors to build generalized additive models (GAMs). Both occurrence and abundance models showed a good predictive ability. Land use, altitude, and NDVI during spring previous to the arrival of hawks to wintering areas were good predictors of the distribution of Swainson's hawks in the Argentine pampas, but only land use and NDVI were entered into the model of abundance of the species in the region. The predictive cartography developed from the models allowed us to identify the current wintering area of Swainson's hawks in the Argentine pampas. The highest occurrence probability and relative abundances for the species were predicted for a broad area of south-eastern pampas that has been overlooked so far and where neither field research nor conservation efforts aiming to prevent massive mortalities has been established.Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; EspañaFil: Bustamante, Francisco Javier. Consejo Superior de Investigaciones Científicas; EspañaFil: Negro Balmaseda, Juan José. 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; ArgentinaWiley Blackwell Publishing, Inc2008-09info: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/11336/81673Sarasola, José Hernán; Bustamante, Francisco Javier; Negro Balmaseda, Juan José; Travaini, Alejandro; Where do Swainson's hawks winter? Satellite images used to identify potential habitat; Wiley Blackwell Publishing, Inc; Diversity and Distributions; 14; 5; 9-2008; 742-7531366-9516CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1472-4642.2008.00477.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1472-4642.2008.00477.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:35Zoai:ri.conicet.gov.ar:11336/81673instacron: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:34982025-09-03 10:05:35.547CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Where do Swainson's hawks winter? Satellite images used to identify potential habitat
title Where do Swainson's hawks winter? Satellite images used to identify potential habitat
spellingShingle Where do Swainson's hawks winter? Satellite images used to identify potential habitat
Sarasola, José Hernán
BUTEO SWAINSONI
CONSERVATION PLANNING
LONG-DISTANCE MIGRANT
PREDICTIVE MODELLING
SWAINSON'S HAWK
WINTERING GROUNDS
title_short Where do Swainson's hawks winter? Satellite images used to identify potential habitat
title_full Where do Swainson's hawks winter? Satellite images used to identify potential habitat
title_fullStr Where do Swainson's hawks winter? Satellite images used to identify potential habitat
title_full_unstemmed Where do Swainson's hawks winter? Satellite images used to identify potential habitat
title_sort Where do Swainson's hawks winter? Satellite images used to identify potential habitat
dc.creator.none.fl_str_mv Sarasola, José Hernán
Bustamante, Francisco Javier
Negro Balmaseda, Juan José
Travaini, Alejandro
author Sarasola, José Hernán
author_facet Sarasola, José Hernán
Bustamante, Francisco Javier
Negro Balmaseda, Juan José
Travaini, Alejandro
author_role author
author2 Bustamante, Francisco Javier
Negro Balmaseda, Juan José
Travaini, Alejandro
author2_role author
author
author
dc.subject.none.fl_str_mv BUTEO SWAINSONI
CONSERVATION PLANNING
LONG-DISTANCE MIGRANT
PREDICTIVE MODELLING
SWAINSON'S HAWK
WINTERING GROUNDS
topic BUTEO SWAINSONI
CONSERVATION PLANNING
LONG-DISTANCE MIGRANT
PREDICTIVE MODELLING
SWAINSON'S HAWK
WINTERING GROUNDS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv During recent years, predictive modelling techniques have been increasingly used to identify regional patterns of species spatial occurrence, to explore species-habitat relationships and to aid in biodiversity conservation. In the case of birds, predictive modelling has been mainly applied to the study of species with little variable interannual patterns of spatial occurrence (e.g. year-round resident species or migratory species in their breeding grounds showing territorial behaviour). We used predictive models to analyse the factors that determine broad-scale patterns of occurrence and abundance of wintering Swainson's hawks (Buteo swainsoni). This species has been the focus of field monitoring in its wintering ground in Argentina due to massive pesticide poisoning of thousands of individuals during the 1990s, but its unpredictable pattern of spatial distribution and the uncertainty about the current wintering area occupied by hawks led to discontinuing such field monitoring. Data on the presence and abundance of hawks were recorded in 30 × 30 km squares (n = 115) surveyed during three austral summers (2001-03). Sixteen land-use/land-cover, topography, and Normalized Difference Vegetation Index (NDVI) variables were used as predictors to build generalized additive models (GAMs). Both occurrence and abundance models showed a good predictive ability. Land use, altitude, and NDVI during spring previous to the arrival of hawks to wintering areas were good predictors of the distribution of Swainson's hawks in the Argentine pampas, but only land use and NDVI were entered into the model of abundance of the species in the region. The predictive cartography developed from the models allowed us to identify the current wintering area of Swainson's hawks in the Argentine pampas. The highest occurrence probability and relative abundances for the species were predicted for a broad area of south-eastern pampas that has been overlooked so far and where neither field research nor conservation efforts aiming to prevent massive mortalities has been established.
Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; España
Fil: Bustamante, Francisco Javier. Consejo Superior de Investigaciones Científicas; España
Fil: Negro Balmaseda, Juan José. 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
description During recent years, predictive modelling techniques have been increasingly used to identify regional patterns of species spatial occurrence, to explore species-habitat relationships and to aid in biodiversity conservation. In the case of birds, predictive modelling has been mainly applied to the study of species with little variable interannual patterns of spatial occurrence (e.g. year-round resident species or migratory species in their breeding grounds showing territorial behaviour). We used predictive models to analyse the factors that determine broad-scale patterns of occurrence and abundance of wintering Swainson's hawks (Buteo swainsoni). This species has been the focus of field monitoring in its wintering ground in Argentina due to massive pesticide poisoning of thousands of individuals during the 1990s, but its unpredictable pattern of spatial distribution and the uncertainty about the current wintering area occupied by hawks led to discontinuing such field monitoring. Data on the presence and abundance of hawks were recorded in 30 × 30 km squares (n = 115) surveyed during three austral summers (2001-03). Sixteen land-use/land-cover, topography, and Normalized Difference Vegetation Index (NDVI) variables were used as predictors to build generalized additive models (GAMs). Both occurrence and abundance models showed a good predictive ability. Land use, altitude, and NDVI during spring previous to the arrival of hawks to wintering areas were good predictors of the distribution of Swainson's hawks in the Argentine pampas, but only land use and NDVI were entered into the model of abundance of the species in the region. The predictive cartography developed from the models allowed us to identify the current wintering area of Swainson's hawks in the Argentine pampas. The highest occurrence probability and relative abundances for the species were predicted for a broad area of south-eastern pampas that has been overlooked so far and where neither field research nor conservation efforts aiming to prevent massive mortalities has been established.
publishDate 2008
dc.date.none.fl_str_mv 2008-09
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/11336/81673
Sarasola, José Hernán; Bustamante, Francisco Javier; Negro Balmaseda, Juan José; Travaini, Alejandro; Where do Swainson's hawks winter? Satellite images used to identify potential habitat; Wiley Blackwell Publishing, Inc; Diversity and Distributions; 14; 5; 9-2008; 742-753
1366-9516
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81673
identifier_str_mv Sarasola, José Hernán; Bustamante, Francisco Javier; Negro Balmaseda, Juan José; Travaini, Alejandro; Where do Swainson's hawks winter? Satellite images used to identify potential habitat; Wiley Blackwell Publishing, Inc; Diversity and Distributions; 14; 5; 9-2008; 742-753
1366-9516
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1472-4642.2008.00477.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1472-4642.2008.00477.x
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
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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
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