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Species responses to changing precipitation depend on trait plasticity rather than trait means and intraspecific variation
Zhang, Bingwei1,2,3; Hautier, Yann4; Tan, Xingru5; You, Cuihai5; Cadotte, Marc W.; Chu, Chengjin1,2; Jiang, Lin7; Sui, Xinghua1,2; Ren, Tingting5; Han, Xingguo5; Chen, Shiping5
AbstractTrait-based approaches are key to develop mechanistic understanding of differences in plant species performance under environmental change. While mean trait values have been widely used to link functional traits to species performance, the contribution of intraspecific trait variation and trait plasticity remains unclear. Moreover, environmentally induced changes in species biomass are caused by changes in the number of individuals and individual growth rate, both of which should be influenced by trait differences and plasticity. Our goal in this study is to use trait-based information to explain species performance via changes in species abundance and individual weight. We measured the mean, intraspecific variation and plasticity of nine above-ground plant traits, and a further three mean root traits from 10 common species in a precipitation manipulation experiment in semi-arid grassland. We used this trait information to explain differences in the responses of species biomass, abundance and mean individual weight to changing precipitation. Species responses were calculated as the normalised slopes of the regressions between species biomass, abundance and individual weight with the manipulated precipitation amount. We found strong differences in species responses to changing precipitation for species biomass, abundance and mean individual weight. Reduced precipitation decreased biomass, abundance and mean individual weight for some species, but increased them for others. Biomass and mean individual weight of species with resource-acquisitive traits, such as shallow rooted species, showed stronger positive responses to changing precipitation compared to resource-conservative traits, like those with deep roots. For above-ground traits, trait plasticity was the strongest predictor of species responses compared to mean traits and intraspecific trait variation. In addition, trait plasticity regulated changes in species biomass more via changes in species abundance than mean individual weight. These results indicate that trait plasticity is a key driver for determining species-specific responses to changing precipitation and needs more consideration for understanding and predicting ecosystem structure and functioning in future climate scenarios. A freePlain Language Summarycan be found within the Supporting Information of this article.
Keywordintraspecific trait variation plant functional traits precipitation manipulation semi-arid grassland species response sensitivity trait plasticity
Subject AreaEcology
Indexed BySCI
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000571501200001
Publication PlaceHOBOKEN
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31700375, 41773084] ; National Key Research and Development Program of China [2017YFA0604801] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2017M610564, 2018T110906]
Corresponding Author Emailzhangbw23@mail.sysu.edu.cn ; spchen@ibcas.ac.cn
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
2.Sun Yat Sen Univ, Dept Ecol, State Key Lab Biocontrol, Guangzhou, Peoples R China
3.Sun Yat Sen Univ, Sch Life Sci, Guangzhou, Peoples R China
4.Beijing Normal Univ Zhuhai, Zhuhai Branch State Key Lab Earth Surface Proc &, Beijing, Peoples R China
5.Univ Utrecht, Dept Biol, Ecol & Biodivers Grp, Utrecht, Netherlands
6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
7.Cadotte, Marc W.] Univ Toronto Scarborough, Dept Biol Sci, Toronto, ON, Canada
8.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA
Recommended Citation
GB/T 7714
Zhang, Bingwei,Hautier, Yann,Tan, Xingru,et al. Species responses to changing precipitation depend on trait plasticity rather than trait means and intraspecific variation[J]. FUNCTIONAL ECOLOGY,2020,34(12):2622-2633.
APA Zhang, Bingwei.,Hautier, Yann.,Tan, Xingru.,You, Cuihai.,Cadotte, Marc W..,...&Chen, Shiping.(2020).Species responses to changing precipitation depend on trait plasticity rather than trait means and intraspecific variation.FUNCTIONAL ECOLOGY,34(12),2622-2633.
MLA Zhang, Bingwei,et al."Species responses to changing precipitation depend on trait plasticity rather than trait means and intraspecific variation".FUNCTIONAL ECOLOGY 34.12(2020):2622-2633.
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