Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China

Abstract Niche-based and neutrality-based theories are two major classes of theories explaining the assembly mechanisms of local communities. Both theories have been frequently used to explain species diversity and composition in local communities but their relative importance remains unclear. Here,...

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Autores principales:	Hong Qian, Shengbin Chen, Jin-Long Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ef33eb3731f44d77a58cce48eab2034e
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id	oai:doaj.org-article:ef33eb3731f44d77a58cce48eab2034e
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spelling	oai:doaj.org-article:ef33eb3731f44d77a58cce48eab2034e2021-12-02T11:52:18ZDisentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China10.1038/s41598-017-04679-52045-2322https://doaj.org/article/ef33eb3731f44d77a58cce48eab2034e2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04679-5https://doaj.org/toc/2045-2322Abstract Niche-based and neutrality-based theories are two major classes of theories explaining the assembly mechanisms of local communities. Both theories have been frequently used to explain species diversity and composition in local communities but their relative importance remains unclear. Here, we analyzed 57 assemblages of angiosperm trees in 0.1-ha forest plots across China to examine the effects of environmental heterogeneity (relevant to niche-based processes) and spatial contingency (relevant to neutrality-based processes) on phylogenetic structure of angiosperm tree assemblages distributed across a wide range of environment and space. Phylogenetic structure was quantified with six phylogenetic metrics (i.e., phylogenetic diversity, mean pairwise distance, mean nearest taxon distance, and the standardized effect sizes of these three metrics), which emphasize on different depths of evolutionary histories and account for different degrees of species richness effects. Our results showed that the variation in phylogenetic metrics explained independently by environmental variables was on average much greater than that explained independently by spatial structure, and the vast majority of the variation in phylogenetic metrics was explained by spatially structured environmental variables. We conclude that niche-based processes have played a more important role than neutrality-based processes in driving phylogenetic structure of angiosperm tree species in forest communities in China.Hong QianShengbin ChenJin-Long ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hong Qian Shengbin Chen Jin-Long Zhang Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
description	Abstract Niche-based and neutrality-based theories are two major classes of theories explaining the assembly mechanisms of local communities. Both theories have been frequently used to explain species diversity and composition in local communities but their relative importance remains unclear. Here, we analyzed 57 assemblages of angiosperm trees in 0.1-ha forest plots across China to examine the effects of environmental heterogeneity (relevant to niche-based processes) and spatial contingency (relevant to neutrality-based processes) on phylogenetic structure of angiosperm tree assemblages distributed across a wide range of environment and space. Phylogenetic structure was quantified with six phylogenetic metrics (i.e., phylogenetic diversity, mean pairwise distance, mean nearest taxon distance, and the standardized effect sizes of these three metrics), which emphasize on different depths of evolutionary histories and account for different degrees of species richness effects. Our results showed that the variation in phylogenetic metrics explained independently by environmental variables was on average much greater than that explained independently by spatial structure, and the vast majority of the variation in phylogenetic metrics was explained by spatially structured environmental variables. We conclude that niche-based processes have played a more important role than neutrality-based processes in driving phylogenetic structure of angiosperm tree species in forest communities in China.
format	article
author	Hong Qian Shengbin Chen Jin-Long Zhang
author_facet	Hong Qian Shengbin Chen Jin-Long Zhang
author_sort	Hong Qian
title	Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
title_short	Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
title_full	Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
title_fullStr	Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
title_full_unstemmed	Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China
title_sort	disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ef33eb3731f44d77a58cce48eab2034e
work_keys_str_mv	AT hongqian disentanglingenvironmentalandspatialeffectsonphylogeneticstructureofangiospermtreecommunitiesinchina AT shengbinchen disentanglingenvironmentalandspatialeffectsonphylogeneticstructureofangiospermtreecommunitiesinchina AT jinlongzhang disentanglingenvironmentalandspatialeffectsonphylogeneticstructureofangiospermtreecommunitiesinchina
_version_	1718395138791702528

Disentangling environmental and spatial effects on phylogenetic structure of angiosperm tree communities in China

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