Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations

Twice a year billions of birds migrate between breeding and wintering grounds. To facilitate migrations, birds develop migratory disposition, a complex suite of behavioral and physiological adjustments. Glucocorticoid hormone corticosterone is involved in the regulation of migratory behavior and phy...

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Autores principales:	Tsvey Arseny, Loshchagina Julia, Naidenko Sergey
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2019
Materias:	birds migrations corticosterone endocrine regulation migratory strategies Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/edb8e7774571407493bb1efa6347ed35
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spelling	oai:doaj.org-article:edb8e7774571407493bb1efa6347ed352021-12-02T19:17:53ZMigratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations2084-883810.1515/ami-2019-0003https://doaj.org/article/edb8e7774571407493bb1efa6347ed352019-12-01T00:00:00Zhttps://doi.org/10.1515/ami-2019-0003https://doaj.org/toc/2084-8838Twice a year billions of birds migrate between breeding and wintering grounds. To facilitate migrations, birds develop migratory disposition, a complex suite of behavioral and physiological adjustments. Glucocorticoid hormone corticosterone is involved in the regulation of migratory behavior and physiology, however no consensus on its exact role in controlling avian migration exists. Using a large dataset on seven songbird species (long- and short-distance migrants) obtained during eleven consecutive migratory seasons on the Courish Spit of the Baltic Sea, we showed the general tendency of similar baseline corticosterone concentrations during both migrations, although stress-induced levels were generally much higher during spring. No difference between long- and short-distance migrants was found in either baseline or stress-induced levels, while there was substantial between-species variation, especially in baseline concentrations. The distinct patterns of corticosterone secretion during seasonal migrations even in ecologically similar species indicate that it is likely to be a species-specific trait. Thus, our study corroborates the inconsistency found in earlier studies and demonstrates how scientific understanding of the role of corticosterone during migration is still evolving. Rather low baseline corticosterone concentrations observed in this study emphasize that birds in both migratory seasons were not in a “stressed” state before capture.Tsvey ArsenyLoshchagina JuliaNaidenko SergeyDe Gruyterarticlebirdsmigrationscorticosteroneendocrine regulationmigratory strategiesBiology (General)QH301-705.5ENAnimal Migration, Vol 6, Iss 1, Pp 4-18 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	birds migrations corticosterone endocrine regulation migratory strategies Biology (General) QH301-705.5
spellingShingle	birds migrations corticosterone endocrine regulation migratory strategies Biology (General) QH301-705.5 Tsvey Arseny Loshchagina Julia Naidenko Sergey Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
description	Twice a year billions of birds migrate between breeding and wintering grounds. To facilitate migrations, birds develop migratory disposition, a complex suite of behavioral and physiological adjustments. Glucocorticoid hormone corticosterone is involved in the regulation of migratory behavior and physiology, however no consensus on its exact role in controlling avian migration exists. Using a large dataset on seven songbird species (long- and short-distance migrants) obtained during eleven consecutive migratory seasons on the Courish Spit of the Baltic Sea, we showed the general tendency of similar baseline corticosterone concentrations during both migrations, although stress-induced levels were generally much higher during spring. No difference between long- and short-distance migrants was found in either baseline or stress-induced levels, while there was substantial between-species variation, especially in baseline concentrations. The distinct patterns of corticosterone secretion during seasonal migrations even in ecologically similar species indicate that it is likely to be a species-specific trait. Thus, our study corroborates the inconsistency found in earlier studies and demonstrates how scientific understanding of the role of corticosterone during migration is still evolving. Rather low baseline corticosterone concentrations observed in this study emphasize that birds in both migratory seasons were not in a “stressed” state before capture.
format	article
author	Tsvey Arseny Loshchagina Julia Naidenko Sergey
author_facet	Tsvey Arseny Loshchagina Julia Naidenko Sergey
author_sort	Tsvey Arseny
title	Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
title_short	Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
title_full	Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
title_fullStr	Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
title_full_unstemmed	Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations
title_sort	migratory species show distinct patterns in corticosterone levels during spring and autumn migrations
publisher	De Gruyter
publishDate	2019
url	https://doaj.org/article/edb8e7774571407493bb1efa6347ed35
work_keys_str_mv	AT tsveyarseny migratoryspeciesshowdistinctpatternsincorticosteronelevelsduringspringandautumnmigrations AT loshchaginajulia migratoryspeciesshowdistinctpatternsincorticosteronelevelsduringspringandautumnmigrations AT naidenkosergey migratoryspeciesshowdistinctpatternsincorticosteronelevelsduringspringandautumnmigrations
_version_	1718376888777310208

Migratory Species Show Distinct Patterns in Corticosterone Levels during Spring and Autumn Migrations

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