Long-distance bird migration within South America revealed by light-level geolocators

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Little is known about the timing of migration, migration routes, and migratory connectivity of most of the >230 species of birds that breed at south temperate latitudes of South America and then migrate toward the tropics to overwinter. We used light-level geolocators to track the migration o...

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Autores principales:	Cueto, Victor Rodolfo, Tuero, Diego Tomas
Publicado:	2013
Materias:	Argentina Fork-tailed Flycatcher Geolocator Neotropical austral migrants Tyrannidae Tyrannus savana migration migration route passerine seasonal variation tracking winter Amazonia Brazil Colombia Venezuela Aves Passeri Passeriformes
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00048038_v130_n2_p223_Jahn http://hdl.handle.net/20.500.12110/paper_00048038_v130_n2_p223_Jahn
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00048038_v130_n2_p223_Jahn
record_format	dspace
spelling	paper:paper_00048038_v130_n2_p223_Jahn2023-06-08T14:29:40Z Long-distance bird migration within South America revealed by light-level geolocators Cueto, Victor Rodolfo Tuero, Diego Tomas Argentina Fork-tailed Flycatcher Geolocator Neotropical austral migrants Tyrannidae Tyrannus savana migration migration route passerine seasonal variation tracking winter Amazonia Argentina Brazil Colombia Venezuela Aves Passeri Passeriformes Tyrannidae Tyrannus savana Little is known about the timing of migration, migration routes, and migratory connectivity of most of the >230 species of birds that breed at south temperate latitudes of South America and then migrate toward the tropics to overwinter. We used light-level geolocators to track the migration of 3 male and 3 female Fork-tailed Flycatchers (Tyrannus savana) captured on their breeding territories in Argentina. All birds initiated fall migration between late January and late February, and migrated 45 to 66 km day-1 in a northwesterly direction through central South America to either one or two wintering areas. Five individuals first spent several weeks (in April and May) in western Amazonia (mainly Peru, northwestern Brazil, and southern Colombia) before moving east to spend the rest of the non-breeding season in central Venezuela and northern Brazil. One individual occupied primarily one wintering area in eastern Colombia, northwestern Brazil, and southwestern Venezuela. Fall migration took approximately 7-12 weeks to complete and covered a distance of 2,888-4,105 km. We did not analyze spring migration data because of broad overlap with the austral spring equinox. These results are the first data on wintering locations, migration timing, and routes of individual migrant passerine birds that breed in South America. Given the general lack of similar data for practically all migratory birds that breed in South America, geolocator technology has the potential to revolutionize our understanding of how birds migrate-and the threats they face-on South America's rapidly changing landscape. © 2013 by The American Ornithologists' Union. All rights reserved. Fil:Cueto, V.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tuero, D.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00048038_v130_n2_p223_Jahn http://hdl.handle.net/20.500.12110/paper_00048038_v130_n2_p223_Jahn
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Fork-tailed Flycatcher Geolocator Neotropical austral migrants Tyrannidae Tyrannus savana migration migration route passerine seasonal variation tracking winter Amazonia Argentina Brazil Colombia Venezuela Aves Passeri Passeriformes Tyrannidae Tyrannus savana
spellingShingle	Argentina Fork-tailed Flycatcher Geolocator Neotropical austral migrants Tyrannidae Tyrannus savana migration migration route passerine seasonal variation tracking winter Amazonia Argentina Brazil Colombia Venezuela Aves Passeri Passeriformes Tyrannidae Tyrannus savana Cueto, Victor Rodolfo Tuero, Diego Tomas Long-distance bird migration within South America revealed by light-level geolocators
topic_facet	Argentina Fork-tailed Flycatcher Geolocator Neotropical austral migrants Tyrannidae Tyrannus savana migration migration route passerine seasonal variation tracking winter Amazonia Argentina Brazil Colombia Venezuela Aves Passeri Passeriformes Tyrannidae Tyrannus savana
description	Little is known about the timing of migration, migration routes, and migratory connectivity of most of the >230 species of birds that breed at south temperate latitudes of South America and then migrate toward the tropics to overwinter. We used light-level geolocators to track the migration of 3 male and 3 female Fork-tailed Flycatchers (Tyrannus savana) captured on their breeding territories in Argentina. All birds initiated fall migration between late January and late February, and migrated 45 to 66 km day-1 in a northwesterly direction through central South America to either one or two wintering areas. Five individuals first spent several weeks (in April and May) in western Amazonia (mainly Peru, northwestern Brazil, and southern Colombia) before moving east to spend the rest of the non-breeding season in central Venezuela and northern Brazil. One individual occupied primarily one wintering area in eastern Colombia, northwestern Brazil, and southwestern Venezuela. Fall migration took approximately 7-12 weeks to complete and covered a distance of 2,888-4,105 km. We did not analyze spring migration data because of broad overlap with the austral spring equinox. These results are the first data on wintering locations, migration timing, and routes of individual migrant passerine birds that breed in South America. Given the general lack of similar data for practically all migratory birds that breed in South America, geolocator technology has the potential to revolutionize our understanding of how birds migrate-and the threats they face-on South America's rapidly changing landscape. © 2013 by The American Ornithologists' Union. All rights reserved.
author	Cueto, Victor Rodolfo Tuero, Diego Tomas
author_facet	Cueto, Victor Rodolfo Tuero, Diego Tomas
author_sort	Cueto, Victor Rodolfo
title	Long-distance bird migration within South America revealed by light-level geolocators
title_short	Long-distance bird migration within South America revealed by light-level geolocators
title_full	Long-distance bird migration within South America revealed by light-level geolocators
title_fullStr	Long-distance bird migration within South America revealed by light-level geolocators
title_full_unstemmed	Long-distance bird migration within South America revealed by light-level geolocators
title_sort	long-distance bird migration within south america revealed by light-level geolocators
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00048038_v130_n2_p223_Jahn http://hdl.handle.net/20.500.12110/paper_00048038_v130_n2_p223_Jahn
work_keys_str_mv	AT cuetovictorrodolfo longdistancebirdmigrationwithinsouthamericarevealedbylightlevelgeolocators AT tuerodiegotomas longdistancebirdmigrationwithinsouthamericarevealedbylightlevelgeolocators
_version_	1768545122770747392

Long-distance bird migration within South America revealed by light-level geolocators

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