Plant acquisitive strategies promote resistance and temporal stability of semiarid grasslands
Yan, Pu (Georgia Institute of Technology. School of Biological Sciences)
He, Nianpeng (Northeast Forestry University (Harbin))
Fernández-Martínez, Marcos (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Yang, Xian (SunYat-Sen University (Guangzhou). School of Ecology)
Zuo, Yiping (Georgia Institute of Technology. School of Biological Sciences)
Zhang, Hao (Georgia Institute of Technology. School of Biological Sciences)
Wang, Jing (Chinese Academy of Sciences. Institute of Geographic Sciences and NaturalResources Research)
Chen, Shiping (Chinese Academy of Sciences. Institute of Botany)
Song, Jian (Hebei University. Institute of Life Science and Green Development)
Li, Guoyong (Henan University. School of Life Sciences)
Valencia, Enrique (Universidad Complutense de Madrid. Departamento de Biodiversidad, Ecología y Evolución)
Wan, Shiqiang (Hebei University. Institute of Life Science and Green Development)
Jiang, Lin (Georgia Institute of Technology. School of Biological Sciences)

Data:	2025
Resum:	Among ecologists, it is widely believed that conservative growth strategies of plants are crucial for sustaining ecosystem stability, while the potential stabilising role of acquisitive strategies has received little attention. We investigated the relationships between plant traits and three stability dimensions-temporal stability, resistance and resilience-using two complementary datasets from drought-affected semi-arid grasslands: a temporal plant community survey from a single site and a 1000-km transect survey with satellite-derived productivity estimates. We found strikingly consistent patterns from the two datasets, with grasslands dominated by acquisitive strategies exhibiting greater resistance and temporal stability of productivity. Acquisitive strategies enhance stability by facilitating drought escape and avoidance, rather than drought tolerance typically associated with conservative strategies. These results highlight the important but underappreciated role of acquisitive strategies in enhancing ecosystem resistance to disturbances and maintaining temporal stability in semi-arid grasslands.
Ajuts:	Agencia Estatal de Investigación PID2022-140398NA-I00
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Acquisitive strategies ; Conservative strategies ; Drought ; Plant functional traits ; Semi-arid grasslands ; Stability
Publicat a:	Ecology letters, Vol. 28, issue 4 (April 2025) , art. e701102025, ISSN 1461-0248

DOI: 10.1111/ele.70110
PMID: 40178069

11 p, 677.6 KB

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