干旱区生态环境知识资源中心(Arid): Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains

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DOI	10.1002/ecs2.3253
	Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains
	Scott, Julian A.; Merritt, David M.
通讯作者	Scott, JA
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2020
卷号	11 期号:10
英文摘要	The southern Rocky Mountains serve as the headwaters of the West, providing water to agriculture, industry, recreation, and millions of people in 17 western states. Eighty percent of the water draining land managed by the United States Department of Agriculture Forest Service (Forest Service) is from snowmelt. The demand for this water continues to grow with increasing population throughout the arid West. The Forest Service is obliged to manage these watersheds for a diverse set of interests including extraction of forest products and other natural resources, providing recreational opportunities, and delivering fresh water. The Forest Service is simultaneously required to sustain the ecological condition of the managed lands for future generations. Satisfying these demands requires quantitative approaches to balance the ecological impacts against the benefits of water development. In this study, we (1) measured riparian vegetation at nine sites in the Medicine Bow-Routt National Forests, (2) identified twelve trait-based riparian vegetation-flow response guilds (functionally similar groups of plants), (3) constructed reach-scale hydraulic models for each site, (4) classified sites by hydro-geomorphic characteristics, and (5) modeled observed guild distributions as a function of duration of stream inundation and site characteristics. To illustrate the application of these models in quantifying ecological impacts of water development and management decisions, flow scenarios were developed to simulate the effects of upstream diversions and reservoirs. Guild distribution models were then used to forecast alterations to vegetation patterns under the flow simulations. Even in these relatively moist montane riparian areas, stream inundation duration explained much of the variability in guild distributions. Controlling for groundwater contributions to the moisture regime improved the predictive ability of the models. Plot-level guild diversity was found to be most correlated to the maximum height of species in the guild, shade tolerance, and seed mass. Plots were identified with relatively low species diversity and high guild diversity, suggesting niche partitioning and a target guild composition for restoring resilient riparian vegetation assemblages. We demonstrate the transferability of guild models across rivers to assist in the decision-making process for evaluating water development and forecasting riparian vegetation response.
英文关键词	environmental flows guilds riparian species distribution modeling stream stream flow
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000588068600024
WOS关键词	ENVIRONMENTAL FLOWS ; FUNCTIONAL TRAITS ; PLANT GUILDS ; VEGETATION ; RIVER ; REGIMES ; ESTABLISHMENT ; COMMUNITIES ; GROUNDWATER ; PERSPECTIVE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327443
作者单位	[Scott, Julian A.; Merritt, David M.] USDA Forest Serv, Natl Stream & Aquat Ecol Ctr, 2150 Ctr Ave,Bldg A,Suite 368, Ft Collins, CO 80526 USA
推荐引用方式 GB/T 7714	Scott, Julian A.,Merritt, David M.. Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains[J],2020,11(10).
APA	Scott, Julian A.,&Merritt, David M..(2020).Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains.ECOSPHERE,11(10).
MLA	Scott, Julian A.,et al."Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains".ECOSPHERE 11.10(2020).