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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/81673
Ver los metadatos del registro completo
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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 |
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 |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
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 |
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1842269918239653888 |
score |
13.13397 |