干旱区生态环境知识资源中心(Arid): Interactions Between Physical Template and Self-organization Shape Plant Dynamics in a Stream Ecosystem

Arid

DOI	10.1007/s10021-019-00444-z
	Interactions Between Physical Template and Self-organization Shape Plant Dynamics in a Stream Ecosystem
	Dong, Xiaoli 1,2,3; Grimm, Nancy B.1 ; Heffernan, James B.2; Muneepeerakul, Rachata 4
通讯作者	Dong, Xiaoli
来源期刊	ECOSYSTEMS
ISSN	1432-9840
EISSN	1435-0629
出版年	2020
卷号	23 期号:4 页码:891-905
英文摘要	Both internal feedbacks and preexisting heterogeneity of a physical template can produce biological patchiness in ecosystems. The relative importance of the two drivers might change over time, in response to changes in the external environment. This is especially relevant for ecosystems experiencing high environmental variability. We investigated the interaction between these two drivers-internal feedbacks and template heterogeneity (represented by variation in water permanence in this study)-using 9-year data on macrophyte (wetland) patch distribution collected from Sycamore Creek, a desert stream in Arizona, USA. Sycamore Creek is highly variable both in space and in time due to its flashy hydrograph. We used a lattice simulation model that considered both the spatial heterogeneity of the geomorphic template and the influence of local positive feedbacks on plant growth. We showed that the relative strengths of local feedbacks and the template effect varied with the hydrological condition in a given year. Overall, the effect of template heterogeneity increased in wetter and more frequently flooded years and the effect of internal positive feedback decreased. Averaging over the 9-year study period, the effect of local feedbacks on wetland distribution and abundance in Sycamore Creek was about twice that of template heterogeneity. In the driest years, it reached up to similar to 12 times. Our study suggested that compared to catastrophic floods, severe droughts-the type of hydrological change projected to become more frequent for the region under a changing climate-have a stronger legacy effect on the biotic community in subsequent years.
英文关键词	Ecosystem regime shift Hydrology Local facilitation Self-organization Spatial patterns Wetlands
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000536735200013
WOS关键词	CATASTROPHIC REGIME SHIFTS ; ALTERNATIVE STABLE STATES ; PATTERN-FORMATION ; POSITIVE INTERACTIONS ; VEGETATION ; CONSEQUENCES ; WETLANDS ; VARIABILITY ; SUCCESSION ; SEDIMENT
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	Arizona State University ; University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319230
作者单位	1.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA; 2.Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA; 3.Univ Calif Davis, Dept Environm Sci & Policy, Davis, CA 95616 USA; 4.Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Dong, Xiaoli,Grimm, Nancy B.,Heffernan, James B.,et al. Interactions Between Physical Template and Self-organization Shape Plant Dynamics in a Stream Ecosystem[J]. Arizona State University, University of California, Davis,2020,23(4):891-905.
APA	Dong, Xiaoli,Grimm, Nancy B.,Heffernan, James B.,&Muneepeerakul, Rachata.(2020).Interactions Between Physical Template and Self-organization Shape Plant Dynamics in a Stream Ecosystem.ECOSYSTEMS,23(4),891-905.
MLA	Dong, Xiaoli,et al."Interactions Between Physical Template and Self-organization Shape Plant Dynamics in a Stream Ecosystem".ECOSYSTEMS 23.4(2020):891-905.