globalchange  > 气候减缓与适应
DOI: 10.1002/ecy.2578
WOS记录号: WOS:000457618800009
论文题名:
Temporal clustering of extreme climate events drives a regime shift in rocky intertidal biofilms
作者: Dal Bello, Martina1,2; Rindi, Luca1; Benedetti-Cecchi, Lisandro1
通讯作者: Dal Bello, Martina
刊名: ECOLOGY
ISSN: 0012-9658
EISSN: 1939-9170
出版年: 2019
卷: 100, 期:2
语种: 英语
英文关键词: abrupt changes ; alternative states ; biofilm ; climate change ; epilithic microphytobenthos ; extreme events ; regime shift ; temporal clustering
WOS关键词: ALTERNATIVE STABLE STATES ; EXTRACELLULAR POLYMERIC SUBSTANCES ; DESICCATION TOLERANCE ; STRESS ; RESILIENCE ; MECHANISMS ; INDICATORS ; INTENSITY ; RESPONSES
WOS学科分类: Ecology
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Research on regime shifts has focused primarily on how changes in the intensity and duration of press disturbances precipitate natural systems into undesirable, alternative states. By contrast, the role of recurrent pulse perturbations, such as extreme climatic events, has been largely neglected, hindering our understanding of how historical processes regulate the onset of a regime shift. We performed field manipulations to evaluate whether combinations of extreme events of temperature and sediment deposition that differed in their degree of temporal clustering generated alternative states in rocky intertidal epilithic microphytobenthos (biofilms) on rocky shores. The likelihood of biofilms to shift from a vegetated to a bare state depended on the degree of temporal clustering of events, with biofilm biomass showing both states under a regime of non-clustered (60 d apart) perturbations while collapsing in the clustered (15 d apart) scenario. Our results indicate that time since the last perturbation can be an important predictor of collapse in systems exhibiting alternative states and that consideration of historical effects in studies of regime shifts may largely improve our understanding of ecosystem dynamics under climate change.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/129388
Appears in Collections:气候减缓与适应

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作者单位: 1.Univ Pisa, Dept Biol, CoNISMa, Via Derna 1, Pisa, Italy
2.MIT, Dept Phys, Phys Living Syst Grp, Cambridge, MA 02139 USA

Recommended Citation:
Dal Bello, Martina,Rindi, Luca,Benedetti-Cecchi, Lisandro. Temporal clustering of extreme climate events drives a regime shift in rocky intertidal biofilms[J]. ECOLOGY,2019-01-01,100(2)
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