Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness

Migrating birds may respond to a variety of environmental cues in order to time migration. During the migration season nocturnally migrating songbirds may migrate or stop-over at their current location, and when migrating they may vary the rate or distance of migration on any given night. It has lon...

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Autores principales:	Berchtold Adrienne, Nightingale Ira, Vandermeer Caitlin, MacDougall-Shackleton Scott A.
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2017
Materias:	migration temperature zugunruhe zonotrichia albicollis weather Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/004e452622414525b2a52abbb653ede8
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spelling	oai:doaj.org-article:004e452622414525b2a52abbb653ede82021-12-02T19:11:09ZExperimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness2084-883810.1515/ami-2017-0001https://doaj.org/article/004e452622414525b2a52abbb653ede82017-02-01T00:00:00Zhttps://doi.org/10.1515/ami-2017-0001https://doaj.org/toc/2084-8838Migrating birds may respond to a variety of environmental cues in order to time migration. During the migration season nocturnally migrating songbirds may migrate or stop-over at their current location, and when migrating they may vary the rate or distance of migration on any given night. It has long been known that a variety of weather-related factors including wind speed and direction, and temperature, are correlated with migration in free-living birds, however these variables are often correlated with each other. In this study we experimentally manipulated temperature to determine if it would directly modulate nocturnal migratory restlessness in songbirds. We experimentally manipulated temperature between 4, 14, and 24°C and monitored nocturnal migratory restlessness during autumn in white-throated sparrows (Zonotrichia albicollis). White-throated sparrows are relatively shortdistance migrants with a prolonged autumnal migration, and we thus predicted they might be sensitive to weatherrelated cues when deciding whether to migrate or stopover. At warm temperatures (24°C) none of the birds exhibited migratory restlessness. The probability of exhibiting migratory restlessness, and the intensity of this restlessness (number of infra-red beam breaks) increased at cooler (14°C, 4°C) temperatures. These data support the hypothesis that one of the many factors that birds use when making behavioural decisions during migration is temperature, and that birds can respond to temperature directly independently of other weather-related cues.Berchtold AdrienneNightingale IraVandermeer CaitlinMacDougall-Shackleton Scott A.De Gruyterarticlemigrationtemperaturezugunruhezonotrichia albicollisweatherBiology (General)QH301-705.5ENAnimal Migration, Vol 4, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	migration temperature zugunruhe zonotrichia albicollis weather Biology (General) QH301-705.5
spellingShingle	migration temperature zugunruhe zonotrichia albicollis weather Biology (General) QH301-705.5 Berchtold Adrienne Nightingale Ira Vandermeer Caitlin MacDougall-Shackleton Scott A. Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
description	Migrating birds may respond to a variety of environmental cues in order to time migration. During the migration season nocturnally migrating songbirds may migrate or stop-over at their current location, and when migrating they may vary the rate or distance of migration on any given night. It has long been known that a variety of weather-related factors including wind speed and direction, and temperature, are correlated with migration in free-living birds, however these variables are often correlated with each other. In this study we experimentally manipulated temperature to determine if it would directly modulate nocturnal migratory restlessness in songbirds. We experimentally manipulated temperature between 4, 14, and 24°C and monitored nocturnal migratory restlessness during autumn in white-throated sparrows (Zonotrichia albicollis). White-throated sparrows are relatively shortdistance migrants with a prolonged autumnal migration, and we thus predicted they might be sensitive to weatherrelated cues when deciding whether to migrate or stopover. At warm temperatures (24°C) none of the birds exhibited migratory restlessness. The probability of exhibiting migratory restlessness, and the intensity of this restlessness (number of infra-red beam breaks) increased at cooler (14°C, 4°C) temperatures. These data support the hypothesis that one of the many factors that birds use when making behavioural decisions during migration is temperature, and that birds can respond to temperature directly independently of other weather-related cues.
format	article
author	Berchtold Adrienne Nightingale Ira Vandermeer Caitlin MacDougall-Shackleton Scott A.
author_facet	Berchtold Adrienne Nightingale Ira Vandermeer Caitlin MacDougall-Shackleton Scott A.
author_sort	Berchtold Adrienne
title	Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
title_short	Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
title_full	Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
title_fullStr	Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
title_full_unstemmed	Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
title_sort	experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness
publisher	De Gruyter
publishDate	2017
url	https://doaj.org/article/004e452622414525b2a52abbb653ede8
work_keys_str_mv	AT berchtoldadrienne experimentaltemperaturemanipulationsaltersongbirdautumnalnocturnalmigratoryrestlessness AT nightingaleira experimentaltemperaturemanipulationsaltersongbirdautumnalnocturnalmigratoryrestlessness AT vandermeercaitlin experimentaltemperaturemanipulationsaltersongbirdautumnalnocturnalmigratoryrestlessness AT macdougallshackletonscotta experimentaltemperaturemanipulationsaltersongbirdautumnalnocturnalmigratoryrestlessness
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Experimental temperature manipulations alter songbird autumnal nocturnal migratory restlessness

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