Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.

<h4>Background</h4>Tracking small migrant organisms worldwide has been hampered by technological and recovery limitations and sampling bias inherent in exogenous markers. Naturally occurring stable isotopes of H (δ(2)H) in feathers provide an alternative intrinsic marker of animal origin...

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Autores principales:	Keith A Hobson, Steven L Van Wilgenburg, Leonard I Wassenaar, Keith Larson
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/43a23710ca8848d5b1827fc209e4c7ff
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spelling	oai:doaj.org-article:43a23710ca8848d5b1827fc209e4c7ff2021-11-18T07:22:34ZLinking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.1932-620310.1371/journal.pone.0035137https://doaj.org/article/43a23710ca8848d5b1827fc209e4c7ff2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22509393/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Tracking small migrant organisms worldwide has been hampered by technological and recovery limitations and sampling bias inherent in exogenous markers. Naturally occurring stable isotopes of H (δ(2)H) in feathers provide an alternative intrinsic marker of animal origin due to the predictable spatial linkage to underlying hydrologically driven flow of H isotopes into foodwebs. This approach can assess the likelihood that a migrant animal originated from a given location(s) within a continent but requires a robust algorithm linking H isotopes in tissues of interest to an appropriate hydrological isotopic spatio-temporal pattern, such as weighted-annual rainfall. However, a number of factors contribute to or alter expected isotopic patterns in animals. We present results of an extensive investigation into taxonomic and environmental factors influencing feather δ(2)H patterns across North America.<h4>Principal findings</h4>Stable isotope data were measured from 544 feathers from 40 species and 140 known locations. For δ(2)H, the most parsimonious model explaining 83% of the isotopic variance was found with amount-weighted growing-season precipitation δ(2)H, foraging substrate and migratory strategy.<h4>Conclusions/significance</h4>This extensive H isotopic analysis of known-origin feathers of songbirds in North America and elsewhere reconfirmed the strong coupling between tissue δ(2)H and global hydrologic δ(2)H patterns, and accounting for variance associated with foraging substrate and migratory strategy, can be used in conservation and research for the purpose of assigning birds and other species to their approximate origin.Keith A HobsonSteven L Van WilgenburgLeonard I WassenaarKeith LarsonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e35137 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Keith A Hobson Steven L Van Wilgenburg Leonard I Wassenaar Keith Larson Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
description	<h4>Background</h4>Tracking small migrant organisms worldwide has been hampered by technological and recovery limitations and sampling bias inherent in exogenous markers. Naturally occurring stable isotopes of H (δ(2)H) in feathers provide an alternative intrinsic marker of animal origin due to the predictable spatial linkage to underlying hydrologically driven flow of H isotopes into foodwebs. This approach can assess the likelihood that a migrant animal originated from a given location(s) within a continent but requires a robust algorithm linking H isotopes in tissues of interest to an appropriate hydrological isotopic spatio-temporal pattern, such as weighted-annual rainfall. However, a number of factors contribute to or alter expected isotopic patterns in animals. We present results of an extensive investigation into taxonomic and environmental factors influencing feather δ(2)H patterns across North America.<h4>Principal findings</h4>Stable isotope data were measured from 544 feathers from 40 species and 140 known locations. For δ(2)H, the most parsimonious model explaining 83% of the isotopic variance was found with amount-weighted growing-season precipitation δ(2)H, foraging substrate and migratory strategy.<h4>Conclusions/significance</h4>This extensive H isotopic analysis of known-origin feathers of songbirds in North America and elsewhere reconfirmed the strong coupling between tissue δ(2)H and global hydrologic δ(2)H patterns, and accounting for variance associated with foraging substrate and migratory strategy, can be used in conservation and research for the purpose of assigning birds and other species to their approximate origin.
format	article
author	Keith A Hobson Steven L Van Wilgenburg Leonard I Wassenaar Keith Larson
author_facet	Keith A Hobson Steven L Van Wilgenburg Leonard I Wassenaar Keith Larson
author_sort	Keith A Hobson
title	Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
title_short	Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
title_full	Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
title_fullStr	Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
title_full_unstemmed	Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
title_sort	linking hydrogen (δ2h) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/43a23710ca8848d5b1827fc209e4c7ff
work_keys_str_mv	AT keithahobson linkinghydrogend2hisotopesinfeathersandprecipitationsourcesofvarianceandconsequencesforassignmenttoisoscapes AT stevenlvanwilgenburg linkinghydrogend2hisotopesinfeathersandprecipitationsourcesofvarianceandconsequencesforassignmenttoisoscapes AT leonardiwassenaar linkinghydrogend2hisotopesinfeathersandprecipitationsourcesofvarianceandconsequencesforassignmenttoisoscapes AT keithlarson linkinghydrogend2hisotopesinfeathersandprecipitationsourcesofvarianceandconsequencesforassignmenttoisoscapes
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Linking hydrogen (δ2H) isotopes in feathers and precipitation: sources of variance and consequences for assignment to isoscapes.

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