期刊
BIODIVERSITY AND CONSERVATION
卷 30, 期 2, 页码 311-327出版社
SPRINGER
DOI: 10.1007/s10531-020-02090-7
关键词
Freshwater; Biodiversity; Groundwater dependent ecosystems; Aquifer; Basin
资金
- Nature Conservancy
- Transition Habitat Conservancy
- Bureau of Land Management
Groundwater expression in springs is essential for maintaining landscape functions and biodiversity in arid landscapes, but is threatened by unsustainable groundwater pumping. A comprehensive survey of Mojave Desert springs was conducted to understand their current status, conservation challenges, and policy implications for better management of these critical freshwater resources.
In arid landscapes where fresh water is a limiting resource, the expression of groundwater in springs sustains important landscape functions, globally-recognized biodiversity hotspots, and both aquatic endemic and wide-ranging terrestrial species. Desert springs and associated groundwater dependent ecosystems are threatened by unsustainable groundwater pumping, and the Mojave Desert has seen extinctions of species due to the human use and modification of springs. To support changes in policy and management that would address the vulnerabilities of springs to unsustainable groundwater extraction and other threats, a better understanding of current spring condition is needed. Here we present the results of a comprehensive survey of Mojave Desert springs including hydrological and ecological observations, and an eDNA pilot study. Together, these investigations provide information about the present status of Mojave Desert springs, conservation challenges that they face, and needs that must be met to protect them. We also provide an overview of the current state of federal and state policy that could be used to better manage these critical freshwater resources.
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