Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina

Autores
Sarasola, José Hernán; Santillán, Miguel Ángel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Forested landscapes vary greatly in habitat structure and complexity due to natural and anthropogenic disturbances that may alter forest attributes. Habitat structure along with temporal factors may directly affect interactions between species, particularly those between predators and their prey. Our study assesses the effects of habitat structure in prey intake of a small avian predator, the ferruginous pygmy-owl (Glaucidium brasilianum) in semiarid forests of caldén (Prosopis caldenia) in central Argentina. Overall, the main prey of owls was small mammals, followed in importance by birds, insects and reptiles. The mean abundance of mammals in the diet was affected by season and year, while the abundance of birds in the diet was greater during spring-summer than during autumn-winter. As for insect prey, abundance of birds in the diet was also greater in open than in closed forests. Habitat type seems to plays an important role in the use of food resources by the ferruginous pygmy-owl in caldén forests. Due to the recurrence, spatial extent and remarkable effects of natural disturbances on habitat structure in these environments, our results suggest that habitat type and structure should be taken into account in diet studies of forest specialist avian predators in these habitats.
Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; Argentina
Fil: Santillán, Miguel Ángel. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; Argentina
Materia
Argentina
Caldén Forest
Feeding Ecology
Ferruginous Pygmy-Owl
Glaucidium Brasilianum
Habitat Structure
Prosopis Caldenia
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:11336/81574
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central ArgentinaSarasola, José HernánSantillán, Miguel ÁngelArgentinaCaldén ForestFeeding EcologyFerruginous Pygmy-OwlGlaucidium BrasilianumHabitat StructureProsopis Caldeniahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Forested landscapes vary greatly in habitat structure and complexity due to natural and anthropogenic disturbances that may alter forest attributes. Habitat structure along with temporal factors may directly affect interactions between species, particularly those between predators and their prey. Our study assesses the effects of habitat structure in prey intake of a small avian predator, the ferruginous pygmy-owl (Glaucidium brasilianum) in semiarid forests of caldén (Prosopis caldenia) in central Argentina. Overall, the main prey of owls was small mammals, followed in importance by birds, insects and reptiles. The mean abundance of mammals in the diet was affected by season and year, while the abundance of birds in the diet was greater during spring-summer than during autumn-winter. As for insect prey, abundance of birds in the diet was also greater in open than in closed forests. Habitat type seems to plays an important role in the use of food resources by the ferruginous pygmy-owl in caldén forests. Due to the recurrence, spatial extent and remarkable effects of natural disturbances on habitat structure in these environments, our results suggest that habitat type and structure should be taken into account in diet studies of forest specialist avian predators in these habitats.Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; ArgentinaFil: Santillán, Miguel Ángel. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2014-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81574Sarasola, José Hernán; Santillán, Miguel Ángel; Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 109; 10-2014; 39-430140-1963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0140196314001232info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2014.05.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:39Zoai:ri.conicet.gov.ar:11336/81574instacron: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 09:39:39.676CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
title Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
spellingShingle Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
Sarasola, José Hernán
Argentina
Caldén Forest
Feeding Ecology
Ferruginous Pygmy-Owl
Glaucidium Brasilianum
Habitat Structure
Prosopis Caldenia
title_short Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
title_full Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
title_fullStr Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
title_full_unstemmed Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
title_sort Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina
dc.creator.none.fl_str_mv Sarasola, José Hernán
Santillán, Miguel Ángel
author Sarasola, José Hernán
author_facet Sarasola, José Hernán
Santillán, Miguel Ángel
author_role author
author2 Santillán, Miguel Ángel
author2_role author
dc.subject.none.fl_str_mv Argentina
Caldén Forest
Feeding Ecology
Ferruginous Pygmy-Owl
Glaucidium Brasilianum
Habitat Structure
Prosopis Caldenia
topic Argentina
Caldén Forest
Feeding Ecology
Ferruginous Pygmy-Owl
Glaucidium Brasilianum
Habitat Structure
Prosopis Caldenia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Forested landscapes vary greatly in habitat structure and complexity due to natural and anthropogenic disturbances that may alter forest attributes. Habitat structure along with temporal factors may directly affect interactions between species, particularly those between predators and their prey. Our study assesses the effects of habitat structure in prey intake of a small avian predator, the ferruginous pygmy-owl (Glaucidium brasilianum) in semiarid forests of caldén (Prosopis caldenia) in central Argentina. Overall, the main prey of owls was small mammals, followed in importance by birds, insects and reptiles. The mean abundance of mammals in the diet was affected by season and year, while the abundance of birds in the diet was greater during spring-summer than during autumn-winter. As for insect prey, abundance of birds in the diet was also greater in open than in closed forests. Habitat type seems to plays an important role in the use of food resources by the ferruginous pygmy-owl in caldén forests. Due to the recurrence, spatial extent and remarkable effects of natural disturbances on habitat structure in these environments, our results suggest that habitat type and structure should be taken into account in diet studies of forest specialist avian predators in these habitats.
Fil: Sarasola, José Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; Argentina
Fil: Santillán, Miguel Ángel. Universidad Nacional de La Pampa. Facultad de Ciencia Exactas y Naturales. Departamento de Recursos Naturales. Centro para el Estudio y Conservación de Aves Rapaces; Argentina
description Forested landscapes vary greatly in habitat structure and complexity due to natural and anthropogenic disturbances that may alter forest attributes. Habitat structure along with temporal factors may directly affect interactions between species, particularly those between predators and their prey. Our study assesses the effects of habitat structure in prey intake of a small avian predator, the ferruginous pygmy-owl (Glaucidium brasilianum) in semiarid forests of caldén (Prosopis caldenia) in central Argentina. Overall, the main prey of owls was small mammals, followed in importance by birds, insects and reptiles. The mean abundance of mammals in the diet was affected by season and year, while the abundance of birds in the diet was greater during spring-summer than during autumn-winter. As for insect prey, abundance of birds in the diet was also greater in open than in closed forests. Habitat type seems to plays an important role in the use of food resources by the ferruginous pygmy-owl in caldén forests. Due to the recurrence, spatial extent and remarkable effects of natural disturbances on habitat structure in these environments, our results suggest that habitat type and structure should be taken into account in diet studies of forest specialist avian predators in these habitats.
publishDate 2014
dc.date.none.fl_str_mv 2014-10
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/11336/81574
Sarasola, José Hernán; Santillán, Miguel Ángel; Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 109; 10-2014; 39-43
0140-1963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81574
identifier_str_mv Sarasola, José Hernán; Santillán, Miguel Ángel; Spatial and temporal variations in the feeding ecology of ferruginous pygmy-owls (Glaucidium brasilianum) in semiarid forests of central Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 109; 10-2014; 39-43
0140-1963
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0140196314001232
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2014.05.008
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
dc.publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
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_ 1844613255377453056
score 13.070432

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