气候变化领域集成服务门户(CCPortal): Mechanisms of forest resilience

CCPortal

DOI	10.1016/j.foreco.2022.120129
	Mechanisms of forest resilience
	Falk, Donald A.; van Mantgem, Philip J.; Keeley, Jon E.; Gregg, Rachel M.; Guiterman, Christopher H.; Tepley, Alan J.; Young, Derek J. N.; Marshall, Laura A.
发表日期	2022
ISSN	0378-1127
EISSN	1872-7042
卷号	512
英文摘要	Ecosystems are dynamic systems with complex responses to environmental variation. In response to pervasive stressors of changing climate and disturbance regimes, many ecosystems are realigning rapidly across spatial scales, in many cases moving outside of their observed historical range of variation into alternative ecological states. In some cases, these new states are transitory and represent successional stages that may ultimately revert to the pre-disturbance condition; in other cases, alternative states are persistent and potentially self-reinforcing, especially under conditions of altered climate, disturbance regimes, and influences of non-native species. These reorganized states may appear novel, but reorganization is a characteristic ecosystem response to environmental variation that has been expressed and documented throughout the paleoecological record. Resilience, the ability of an ecosystem to recover or adapt following disturbance, is an emergent property that results from the expression of multiple mechanisms operating across levels of organism, population, and community. We outline a unifying framework of ecological resilience based on ecological mechanisms that lead to outcomes of persistence, recovery, and reorganization. Persistence is the ability of individuals to tolerate exposure to environmental stress, disturbance, or competitive interactions. As a direct expression of life history evolution and adaptation to environmental variation and stress, persistence is manifested most directly in survivorship and continued growth and reproduction of established individuals. When persistence has been overcome (e.g., following mortality from stress, disturbance, or both), populations must recover by reproduction. Recovery requires the establishment of new individuals from seed or other propagules following dispersal from the parent plant. When recovery fails to re-establish the pre-disturbance community, the ecosystem will assemble into a new state. Reorganization occurs along a gradient of magnitude, from changes in the relative dominance of species present in a community, to individual species replacements within an essentially intact community, to complete species turnover and shift to dominance by plants of different functional types, e.g. transition from forest to shrub or grass dominance. When this latter outcome is persistent and involves reinforcing mechanisms, the resulting state represents a vegetation type conversion (VTC), which in this framework represents an end member of reorganization processes. We explore reorganization in greater detail as this phase is increasingly observed but the least understood of the resilience responses. This resilience framework provides a direct and actionable basis for ecosystem management in a rapidly changing world, by targeting specific components of ecological response and managing for sustainable change.
语种	英语
WOS研究方向	Forestry
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000793417300001
来源期刊	FOREST ECOLOGY AND MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280612
作者单位	University of Arizona; United States Department of the Interior; United States Geological Survey; United States Department of the Interior; United States Geological Survey; University of Arizona; Natural Resources Canada; Canadian Forest Service; University of California System; University of California Davis; Colorado State University; University of Colorado System; University of Colorado Boulder
推荐引用方式 GB/T 7714	Falk, Donald A.,van Mantgem, Philip J.,Keeley, Jon E.,et al. Mechanisms of forest resilience[J],2022,512.
APA	Falk, Donald A..,van Mantgem, Philip J..,Keeley, Jon E..,Gregg, Rachel M..,Guiterman, Christopher H..,...&Marshall, Laura A..(2022).Mechanisms of forest resilience.FOREST ECOLOGY AND MANAGEMENT,512.
MLA	Falk, Donald A.,et al."Mechanisms of forest resilience".FOREST ECOLOGY AND MANAGEMENT 512(2022).