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Accession Number PB2012-114718
Title Sierra Nevada Network Lake Monitoring 2008 and 2009 Summary Report.
Publication Date Sep 2012
Media Count 94p
Personal Author A. M. Heard
Abstract The Sierra Nevada Network (SIEN) monitors high-elevation lakes throughout Sequoia, Kings Canyon, and Yosemite National Parks as part of the National Park Services Inventory and Monitoring (I&M) Program. The purpose of I&M Program is to develop and provide scientifically sound information on the current status and long-term trends in the composition, structure, and function of park ecosystems, and to determine how well current management practices are sustaining those ecosystems. SIEN monitors long-term trends for a suite of ecological indicators as part of the following monitoring efforts: lakes, rivers, high-elevation white pines, wetlands, birds, and climate. Lake ecosystems were selected for monitoring because they are (1) valued for their ecological importance, contribution to Wilderness character, recreational opportunities, and importance to regional water supplies, (2) threatened by multiple stressors, and (3) sensitive to environmental change. The Lake Monitoring program incorporates two of SIENs high priority indicators---water chemistry and surface water dynamics. The water chemistry objectives were the primary driver of the monitoring design, with the hydrologic objectives second in priority. In addition, we collect limited amphibian survey information at our lake sites that are used by the parks and cooperators to supplement ongoing research and monitoring. The amphibian information is beyond the scope of this report.
Keywords Amphibians
Environmental effects
National parks
Natural resource management
Pine trees
Recreational activities
Sierra Nevada (California)
Surface water
Water chemistry
Water pollution monitoring
Water supplies

Source Agency National Park Service
NTIS Subject Category 68D - Water Pollution & Control
48B - Natural Resource Management
48G - Hydrology & Limnology
57H - Ecology
Corporate Author National Park Service, Three Rivers, CA., Sierra Nevada Network.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1226
Contract Number N/A

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