Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate

Abstract Variation across climate gradients in the isotopic composition of nitrogen (N) and carbon (C) in foliar tissues has the potential to reveal ecological processes related to N and water availability. However, it has been a challenge to separate spatial patterns related to direct effects of cl...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Andrew J. Elmore, Joseph M. Craine, David M. Nelson, Steven M. Guinn
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d893d3768fbb49539e029bc4a2b58aed
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d893d3768fbb49539e029bc4a2b58aed
record_format	dspace
spelling	oai:doaj.org-article:d893d3768fbb49539e029bc4a2b58aed2021-12-02T11:52:36ZContinental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate10.1038/s41598-017-08156-x2045-2322https://doaj.org/article/d893d3768fbb49539e029bc4a2b58aed2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08156-xhttps://doaj.org/toc/2045-2322Abstract Variation across climate gradients in the isotopic composition of nitrogen (N) and carbon (C) in foliar tissues has the potential to reveal ecological processes related to N and water availability. However, it has been a challenge to separate spatial patterns related to direct effects of climate from effects that manifest indirectly through species turnover across climate gradients. Here we compare variation along environmental gradients in foliar N isotope (δ15N) and C isotopic discrimination (Δ13C) measured in 755 specimens of a single widely distributed tree species, Populus balsamifera, with variation represented in global databases of foliar isotopes. After accounting for mycorrhizal association, sample size, and climatic range, foliar δ15N in P. balsamifera was more weakly related to mean annual precipitation and foliar N concentration than when measured across species, yet exhibited a stronger negative effect of mean annual temperature. Similarly, the effect of precipitation and elevation on Δ13C were stronger in a global data base of foliar Δ13C samples than observed in P. balsamifera. These results suggest that processes influencing foliar δ15N and Δ13C in P. balsamifera are partially normalized across its climatic range by the habitat it occupies or by the physiology of the species itself.Andrew J. ElmoreJoseph M. CraineDavid M. NelsonSteven M. GuinnNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrew J. Elmore Joseph M. Craine David M. Nelson Steven M. Guinn Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
description	Abstract Variation across climate gradients in the isotopic composition of nitrogen (N) and carbon (C) in foliar tissues has the potential to reveal ecological processes related to N and water availability. However, it has been a challenge to separate spatial patterns related to direct effects of climate from effects that manifest indirectly through species turnover across climate gradients. Here we compare variation along environmental gradients in foliar N isotope (δ15N) and C isotopic discrimination (Δ13C) measured in 755 specimens of a single widely distributed tree species, Populus balsamifera, with variation represented in global databases of foliar isotopes. After accounting for mycorrhizal association, sample size, and climatic range, foliar δ15N in P. balsamifera was more weakly related to mean annual precipitation and foliar N concentration than when measured across species, yet exhibited a stronger negative effect of mean annual temperature. Similarly, the effect of precipitation and elevation on Δ13C were stronger in a global data base of foliar Δ13C samples than observed in P. balsamifera. These results suggest that processes influencing foliar δ15N and Δ13C in P. balsamifera are partially normalized across its climatic range by the habitat it occupies or by the physiology of the species itself.
format	article
author	Andrew J. Elmore Joseph M. Craine David M. Nelson Steven M. Guinn
author_facet	Andrew J. Elmore Joseph M. Craine David M. Nelson Steven M. Guinn
author_sort	Andrew J. Elmore
title	Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
title_short	Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
title_full	Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
title_fullStr	Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
title_full_unstemmed	Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate
title_sort	continental scale variability of foliar nitrogen and carbon isotopes in populus balsamifera and their relationships with climate
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d893d3768fbb49539e029bc4a2b58aed
work_keys_str_mv	AT andrewjelmore continentalscalevariabilityoffoliarnitrogenandcarbonisotopesinpopulusbalsamiferaandtheirrelationshipswithclimate AT josephmcraine continentalscalevariabilityoffoliarnitrogenandcarbonisotopesinpopulusbalsamiferaandtheirrelationshipswithclimate AT davidmnelson continentalscalevariabilityoffoliarnitrogenandcarbonisotopesinpopulusbalsamiferaandtheirrelationshipswithclimate AT stevenmguinn continentalscalevariabilityoffoliarnitrogenandcarbonisotopesinpopulusbalsamiferaandtheirrelationshipswithclimate
_version_	1718395014538592256

Continental scale variability of foliar nitrogen and carbon isotopes in Populus balsamifera and their relationships with climate

Ejemplares similares