干旱区生态环境知识资源中心(Arid): Aridity-dependent shifts in biodiversity-stability relationships but not in underlying mechanisms

Arid

DOI	10.1111/gcb.17365
	Aridity-dependent shifts in biodiversity-stability relationships but not in underlying mechanisms
	Sasaki, Takehiro; Berdugo, Miguel; Kinugasa, Toshihiko; Batdelger, Gantsetseg; Baasandai, Erdenetsetseg; Eisenhauer, Nico
通讯作者	Sasaki, T
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2024
卷号	30 期号:6
英文摘要	Climate change will affect the way biodiversity influences the stability of plant communities. Although biodiversity, associated species asynchrony, and species stability could enhance community stability, the understanding of potential nonlinear shifts in the biodiversity-stability relationship across a wide range of aridity (measured as the aridity index, the precipitation/potential evapotranspiration ratio) gradients and the underlying mechanisms remain limited. Using an 8-year dataset from 687 sites in Mongolia, which included 5496 records of vegetation and productivity, we found that the temporal stability of plant communities decreased more rapidly in more arid areas than in less arid areas. The result suggests that future aridification across terrestrial ecosystems may adversely affect community stability. Additionally, we identified nonlinear shifts in the effects of species richness and species synchrony on temporal community stability along the aridity gradient. Species synchrony was a primary driver of community stability, which was consistently negatively affected by species richness while being positively affected by the synchrony between C3 and C4 species across the aridity gradient. These results highlight the crucial role of C4 species in stabilizing communities through differential responses to interannual climate variations between C3 and C4 species. Notably, species richness and the synchrony between C3 and C4 species independently regulated species synchrony, ultimately affecting community stability. We propose that maintaining plant communities with a high diversity of C3 and C4 species will be key to enhancing community stability across Mongolian grasslands. Moreover, species synchrony, species stability, species richness and the synchrony between C3 and C4 species across the aridity gradient consistently mediated the impacts of aridity on community stability. Hence, strategies aimed at promoting the maintenance of biological diversity and composition will help ecosystems adapt to climate change or mitigate its adverse effects on ecosystem stability. Climate change will affect the way biodiversity influences the stability of plant communities. Using an 8-year dataset from 687 sites in Mongolia, we found that the temporal community stability decreased more rapidly in more arid areas than in less arid areas. Species synchrony was a primary driver of community stability, which was consistently negatively affected by species richness while being positively affected by the synchrony between C3 and C4 species across the aridity gradient. Maintaining plant communities with a high diversity of C3 and C4 species will be key to enhancing community stability across Mongolian grasslands in a changing climate.image
英文关键词	aridification compensatory dynamics context dependency dominant species ecosystem functioning functional group synchrony species stability species synchrony
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:001243858200001
WOS关键词	ECOSYSTEM STABILITY ; RESPONSE DIVERSITY ; DIFFERENTIAL RESPONSES ; FUNCTIONAL REDUNDANCY ; GRAZING GRADIENT ; PLANT DIVERSITY ; INNER-MONGOLIA ; PRODUCTIVITY ; GRASSLAND ; VEGETATION
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403986
推荐引用方式 GB/T 7714	Sasaki, Takehiro,Berdugo, Miguel,Kinugasa, Toshihiko,et al. Aridity-dependent shifts in biodiversity-stability relationships but not in underlying mechanisms[J],2024,30(6).
APA	Sasaki, Takehiro,Berdugo, Miguel,Kinugasa, Toshihiko,Batdelger, Gantsetseg,Baasandai, Erdenetsetseg,&Eisenhauer, Nico.(2024).Aridity-dependent shifts in biodiversity-stability relationships but not in underlying mechanisms.GLOBAL CHANGE BIOLOGY,30(6).
MLA	Sasaki, Takehiro,et al."Aridity-dependent shifts in biodiversity-stability relationships but not in underlying mechanisms".GLOBAL CHANGE BIOLOGY 30.6(2024).