Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis

Determining the processes that shape the relative timing of energetically-costly events in the annual cycle of migrating birds is important to our understanding of avian phenology and ecology. We paired satellite tracking and hydrogen stable isotope analysis (δ2H) to examine the relative timing of t...

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Autores principales:	Wolf Nathan, Smeltz T. Scott, Welker Jeffrey M., Rogers Matthew C., Ely Craig
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2020
Materias:	deuterium precipitation satellite tracking stable isotopes variability Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/408f5c205a784d9a9fdb6412a3c00a7f
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spelling	oai:doaj.org-article:408f5c205a784d9a9fdb6412a3c00a7f2021-12-02T19:11:09ZExploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis2084-883810.1515/ami-2020-0102https://doaj.org/article/408f5c205a784d9a9fdb6412a3c00a7f2020-11-01T00:00:00Zhttps://doi.org/10.1515/ami-2020-0102https://doaj.org/toc/2084-8838Determining the processes that shape the relative timing of energetically-costly events in the annual cycle of migrating birds is important to our understanding of avian phenology and ecology. We paired satellite tracking and hydrogen stable isotope analysis (δ2H) to examine the relative timing of two such events – migration and feather molting – in tundra swans from four breeding areas in Alaska, USA. Our results show a trend of increasing intra-individual variability in breast feather δ2H values with increasing migration distance, suggesting the overlap of breast feather molting and migration. However, when individual samples were pooled by breeding area, the δ2H values of breast and head feathers showed no trend with migration distance, presumably resulting from high levels of inter-individual variability in δ2H values within each breeding area. We explore potential reasons for this variability, propose potential mechanisms influencing feather δ2H values of tundra swans, and recommend further research into methods for exploring the temporal configuration of events in the annual cycle of migrating birds.Wolf NathanSmeltz T. ScottWelker Jeffrey M.Rogers Matthew C.Ely CraigDe Gruyterarticledeuteriumprecipitationsatellite trackingstable isotopesvariabilityBiology (General)QH301-705.5ENAnimal Migration, Vol 7, Iss 1, Pp 58-66 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	deuterium precipitation satellite tracking stable isotopes variability Biology (General) QH301-705.5
spellingShingle	deuterium precipitation satellite tracking stable isotopes variability Biology (General) QH301-705.5 Wolf Nathan Smeltz T. Scott Welker Jeffrey M. Rogers Matthew C. Ely Craig Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
description	Determining the processes that shape the relative timing of energetically-costly events in the annual cycle of migrating birds is important to our understanding of avian phenology and ecology. We paired satellite tracking and hydrogen stable isotope analysis (δ2H) to examine the relative timing of two such events – migration and feather molting – in tundra swans from four breeding areas in Alaska, USA. Our results show a trend of increasing intra-individual variability in breast feather δ2H values with increasing migration distance, suggesting the overlap of breast feather molting and migration. However, when individual samples were pooled by breeding area, the δ2H values of breast and head feathers showed no trend with migration distance, presumably resulting from high levels of inter-individual variability in δ2H values within each breeding area. We explore potential reasons for this variability, propose potential mechanisms influencing feather δ2H values of tundra swans, and recommend further research into methods for exploring the temporal configuration of events in the annual cycle of migrating birds.
format	article
author	Wolf Nathan Smeltz T. Scott Welker Jeffrey M. Rogers Matthew C. Ely Craig
author_facet	Wolf Nathan Smeltz T. Scott Welker Jeffrey M. Rogers Matthew C. Ely Craig
author_sort	Wolf Nathan
title	Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
title_short	Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
title_full	Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
title_fullStr	Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
title_full_unstemmed	Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis
title_sort	exploring overlap of feather molting and migration in tundra swans using δ2h analysis
publisher	De Gruyter
publishDate	2020
url	https://doaj.org/article/408f5c205a784d9a9fdb6412a3c00a7f
work_keys_str_mv	AT wolfnathan exploringoverlapoffeathermoltingandmigrationintundraswansusingd2hanalysis AT smeltztscott exploringoverlapoffeathermoltingandmigrationintundraswansusingd2hanalysis AT welkerjeffreym exploringoverlapoffeathermoltingandmigrationintundraswansusingd2hanalysis AT rogersmatthewc exploringoverlapoffeathermoltingandmigrationintundraswansusingd2hanalysis AT elycraig exploringoverlapoffeathermoltingandmigrationintundraswansusingd2hanalysis
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Exploring Overlap of Feather Molting and Migration in Tundra Swans Using δ2H Analysis

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