Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China

Abstract Ecological processes are generally scale-dependent and there is little consensus about the relative importance of deterministic versus stochastic processes in driving patterns of biological diversity. We investigated how the relationship between functional dispersion and environmental gradi...

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Autores principales:	Hui Fu, Jiayou Zhong, Shaowen Fang, Jianmin Hu, Chunjing Guo, Qian Lou, Guixiang Yuan, Taotao Dai, Zhongqiang Li, Meng Zhang, Wei Li, Jun Xu, Te Cao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/72a9ecfb231742e882acf4aab58fb0b9
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spelling	oai:doaj.org-article:72a9ecfb231742e882acf4aab58fb0b92021-12-02T15:05:52ZScale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China10.1038/s41598-017-08844-82045-2322https://doaj.org/article/72a9ecfb231742e882acf4aab58fb0b92017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08844-8https://doaj.org/toc/2045-2322Abstract Ecological processes are generally scale-dependent and there is little consensus about the relative importance of deterministic versus stochastic processes in driving patterns of biological diversity. We investigated how the relationship between functional dispersion and environmental gradients changes with spatial scale in subtropical freshwater lakes. The functional alpha and beta dispersions of all the tested traits were significantly under-dispersed across spatial scales and along environmental gradients. Results showed more functional similarity within communities in leaf dry mass content and flowering duration but less functional turnover among communities in all the tested traits at regional scales (Yunnan-Guizhou plateau and the middle and low reaches of the Yangtze River). The strengths and directions of environmental effects on the functional alpha and beta dispersions depended on the selected traits, diversity metrics and spatial scales. Surprisingly, broad-scale factors - elevation and water transparency - decreased the functional turnover for most traits along the gradients, whereas fine-scale factors - water depth - produced the opposite patterns along the gradient, depending on the trait selected. Our study highlights the dominant role of deterministic assembly processes in structuring the local functional composition and governing the spatial functional turnover of macrophyte communities across multiple spatial scales.Hui FuJiayou ZhongShaowen FangJianmin HuChunjing GuoQian LouGuixiang YuanTaotao DaiZhongqiang LiMeng ZhangWei LiJun XuTe CaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hui Fu Jiayou Zhong Shaowen Fang Jianmin Hu Chunjing Guo Qian Lou Guixiang Yuan Taotao Dai Zhongqiang Li Meng Zhang Wei Li Jun Xu Te Cao Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
description	Abstract Ecological processes are generally scale-dependent and there is little consensus about the relative importance of deterministic versus stochastic processes in driving patterns of biological diversity. We investigated how the relationship between functional dispersion and environmental gradients changes with spatial scale in subtropical freshwater lakes. The functional alpha and beta dispersions of all the tested traits were significantly under-dispersed across spatial scales and along environmental gradients. Results showed more functional similarity within communities in leaf dry mass content and flowering duration but less functional turnover among communities in all the tested traits at regional scales (Yunnan-Guizhou plateau and the middle and low reaches of the Yangtze River). The strengths and directions of environmental effects on the functional alpha and beta dispersions depended on the selected traits, diversity metrics and spatial scales. Surprisingly, broad-scale factors - elevation and water transparency - decreased the functional turnover for most traits along the gradients, whereas fine-scale factors - water depth - produced the opposite patterns along the gradient, depending on the trait selected. Our study highlights the dominant role of deterministic assembly processes in structuring the local functional composition and governing the spatial functional turnover of macrophyte communities across multiple spatial scales.
format	article
author	Hui Fu Jiayou Zhong Shaowen Fang Jianmin Hu Chunjing Guo Qian Lou Guixiang Yuan Taotao Dai Zhongqiang Li Meng Zhang Wei Li Jun Xu Te Cao
author_facet	Hui Fu Jiayou Zhong Shaowen Fang Jianmin Hu Chunjing Guo Qian Lou Guixiang Yuan Taotao Dai Zhongqiang Li Meng Zhang Wei Li Jun Xu Te Cao
author_sort	Hui Fu
title	Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
title_short	Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
title_full	Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
title_fullStr	Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
title_full_unstemmed	Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China
title_sort	scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/72a9ecfb231742e882acf4aab58fb0b9
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Scale-dependent changes in the functional diversity of macrophytes in subtropical freshwater lakes in south China

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