Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios

doi:10.1111/1365-2745.13797

	Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios
	Pan, Qingmin1 ; Symstad, Amy J.; Bai, Yongfei; Huang, Jianhui; Wu, Jianguo 3,4; Naeem, Shahid 5; Chen, Dima 6; Tian, Dashuan 7; Wang, Qibing ; Han, Xingguo
	2022
发表期刊	JOURNAL OF ECOLOGY
ISSN	0022-0477
卷号	110 期号:1 页码:210-220
摘要	Understanding the biodiversity-productivity relationship and underlying mechanisms in natural ecosystems under realistic diversity loss scenarios remains a major challenge for ecologists despite its importance for predicting impacts of rapid loss of biodiversity worldwide. Here we report the results of a plant functional group (PFG) removal experiment conducted on the Mongolian Plateau, the largest remaining natural grassland in the world. Our results demonstrated that the biodiversity-productivity relationship varied among positive linear, neutral and unimodal forms under different PFG loss patterns. Moreover, the form of this relationship with the same PFG loss pattern sometimes changed through time. The abundance of the remaining PFG(s) before removal and their compensation following the loss of other PFGs were two major mechanisms affecting the biodiversity-productivity relationship under diversity loss scenarios. The abundance effect promoted positive responses of productivity to biodiversity, but the compensation effect caused several biodiversity-productivity relationships, hinging on its direction (positive or negative) and strength. As indicated by the values of the compensation index, negative, zero and partial compensations contributed to the positive relationships, while full compensation resulted in a neutral relationship. Overcompensation at intermediate PFG richness levels created a unimodal curve in our system, but it could also lead to a negative linear relationship. Synthesis. Our experiment provides a vivid picture of how the form of the biodiversity-productivity relationship varies among different diversity loss patterns in a natural ecosystem. We argue that compensation by the remaining species, which is not revealed by synthesized biodiversity experiments, plays a critical role in shaping the form of this relationship when diversity is lost from existing systems. The direction and strength of compensation are highly dependent on extirpation scenarios. Thus, impacts of biodiversity loss on natural ecosystems are likely more complex than predicted by the canonical positive saturating curve obtained from the synthesized biodiversity experiments. We suggest that models forecasting the consequences of biodiversity declines on natural ecosystems should take into account diversity loss patterns and the ensuing compensation.
关键词	biodiversity loss biodiversity-ecosystem functioning compensatory response functional diversity grassland ecosystem plant functional group removal experiment
学科领域	Plant Sciences ; Ecology
DOI	10.1111/1365-2745.13797
收录类别	SCI
语种	英语
WOS关键词	SPECIES RICHNESS ; ECOSYSTEM ; COMPENSATION ; COMPETITION ; ABUNDANCE ; SELECTION ; REMOVAL
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000717714800001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2745
资助机构	National Natural Science Foundation of China [30970496, 31870517]
作者邮箱	xghan@ibcas.ac.cn
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28543
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Symstad, Amy J.] US Geol Survey, Northern Prairie Wildlife Res Ctr, Hot Springs, SD USA 4.Arizona State Univ, Sch Life Sci, Tempe, AZ USA 5.Arizona State Univ, Sch Sustainabil, Tempe, AZ USA 6.Columbia Univ, Coll Biol & Pharmaceut Sci, New York, NY USA 7.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang, Peoples R China 8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Pan, Qingmin,Symstad, Amy J.,Bai, Yongfei,et al. Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios[J]. JOURNAL OF ECOLOGY,2022,110(1):210-220.
APA	Pan, Qingmin.,Symstad, Amy J..,Bai, Yongfei.,Huang, Jianhui.,Wu, Jianguo.,...&Han, Xingguo.(2022).Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios.JOURNAL OF ECOLOGY,110(1),210-220.
MLA	Pan, Qingmin,et al."Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios".JOURNAL OF ECOLOGY 110.1(2022):210-220.

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