Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus

Leaf is essential for plant growth and development; however, the relative importance of environmental filtering and phylogeny in determining leaf size across different spatial scales in grassland ecosystems remains poorly explored. We used transect methodology to explore the spatial variation in lea...

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Autores principales:	Tingting Ren, Nianpeng He, Zhaogang Liu, Mingxu Li, Jiahui Zhang, Ang Li, Cunzheng Wei, Xiaotao Lü, Xingguo Han
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Adaption Grassland Phylogeny Plateau Trait Plant-climate interactions Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/90e7649362bd4f9daec27d5aae909a8b
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spelling	oai:doaj.org-article:90e7649362bd4f9daec27d5aae909a8b2021-12-01T04:58:28ZEnvironmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus1470-160X10.1016/j.ecolind.2021.108049https://doaj.org/article/90e7649362bd4f9daec27d5aae909a8b2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21007147https://doaj.org/toc/1470-160XLeaf is essential for plant growth and development; however, the relative importance of environmental filtering and phylogeny in determining leaf size across different spatial scales in grassland ecosystems remains poorly explored. We used transect methodology to explore the spatial variation in leaf size and its underlying mechanisms in grasslands along three topographically and floristically distinctive plateaus in northern China. We measured leaf size of a total of 1192 grassland species in the Tibetan Plateau (TP, temperature limited), Loess Plateau (LP, soil-nutrient limited), and Mongolia Plateau (MP, precipitation limited) along three transects encompassing meadow, typical, and desert steppes. Leaf size ranged from 0.01 to 258.16 cm2, with an average of 5.54 cm2. The smallest leaves were measured in the TP. At the vegetation association level, the largest leaves were present in the meadow steppe, followed by those in typical and desert steppes, irrespective of the plateau. Unexpectedly, phylogeny had a negligible effect on the spatial variation in leaf size in the grasslands. Leaf size was positively correlated with growing-season temperature and precipitation but negatively correlated with ultraviolet (UV) radiation, suggesting that environmental filtering plays a more important role in affecting leaf size than phylogeny. Furthermore, leaf size in the TP and MP was mainly affected by precipitation and UV radiation, respectively, whereas that in the LP was affected by temperature, precipitation, soil nutrients and UV light. Specifically, our results underscored the importance of environmental filtering rather than phylogeny in determining plant leaf size and shed light on the unexpected role of UV radiation in contributing to leaf size variations in these plateaus. Our study provides novel insights into the response of plants to global change, especially in plateaus, alpine zone, and high-latitude areas.Tingting RenNianpeng HeZhaogang LiuMingxu LiJiahui ZhangAng LiCunzheng WeiXiaotao LüXingguo HanElsevierarticleAdaptionGrasslandPhylogenyPlateauTraitPlant-climate interactionsEcologyQH540-549.5ENEcological Indicators, Vol 130, Iss , Pp 108049- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Adaption Grassland Phylogeny Plateau Trait Plant-climate interactions Ecology QH540-549.5
spellingShingle	Adaption Grassland Phylogeny Plateau Trait Plant-climate interactions Ecology QH540-549.5 Tingting Ren Nianpeng He Zhaogang Liu Mingxu Li Jiahui Zhang Ang Li Cunzheng Wei Xiaotao Lü Xingguo Han Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
description	Leaf is essential for plant growth and development; however, the relative importance of environmental filtering and phylogeny in determining leaf size across different spatial scales in grassland ecosystems remains poorly explored. We used transect methodology to explore the spatial variation in leaf size and its underlying mechanisms in grasslands along three topographically and floristically distinctive plateaus in northern China. We measured leaf size of a total of 1192 grassland species in the Tibetan Plateau (TP, temperature limited), Loess Plateau (LP, soil-nutrient limited), and Mongolia Plateau (MP, precipitation limited) along three transects encompassing meadow, typical, and desert steppes. Leaf size ranged from 0.01 to 258.16 cm2, with an average of 5.54 cm2. The smallest leaves were measured in the TP. At the vegetation association level, the largest leaves were present in the meadow steppe, followed by those in typical and desert steppes, irrespective of the plateau. Unexpectedly, phylogeny had a negligible effect on the spatial variation in leaf size in the grasslands. Leaf size was positively correlated with growing-season temperature and precipitation but negatively correlated with ultraviolet (UV) radiation, suggesting that environmental filtering plays a more important role in affecting leaf size than phylogeny. Furthermore, leaf size in the TP and MP was mainly affected by precipitation and UV radiation, respectively, whereas that in the LP was affected by temperature, precipitation, soil nutrients and UV light. Specifically, our results underscored the importance of environmental filtering rather than phylogeny in determining plant leaf size and shed light on the unexpected role of UV radiation in contributing to leaf size variations in these plateaus. Our study provides novel insights into the response of plants to global change, especially in plateaus, alpine zone, and high-latitude areas.
format	article
author	Tingting Ren Nianpeng He Zhaogang Liu Mingxu Li Jiahui Zhang Ang Li Cunzheng Wei Xiaotao Lü Xingguo Han
author_facet	Tingting Ren Nianpeng He Zhaogang Liu Mingxu Li Jiahui Zhang Ang Li Cunzheng Wei Xiaotao Lü Xingguo Han
author_sort	Tingting Ren
title	Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
title_short	Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
title_full	Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
title_fullStr	Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
title_full_unstemmed	Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
title_sort	environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/90e7649362bd4f9daec27d5aae909a8b
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_version_	1718405675051122688

Environmental filtering rather than phylogeny determines plant leaf size in three floristically distinctive plateaus

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