2004-2005 Final Report: A pilot study and assessment of the efficacy of invertebrates as indicators of meadow change in Sierra Nevada Network Parks
Holmquist PhD JG and Schmidt-Gengenbach J. 2006. 2004-2005 Final Report: A pilot study and assessment of the efficacy of invertebrates as indicators of meadow change in Sierra Nevada Network Parks. University of California, White Mountain Research Station. Bishop, CA
The Sierra Nevada Network initiated an agreement with the University of California White Mountain Research Station to assess invertebrates as indicators of meadow change. Additional baseline ecological data on the meadow invertebrate assemblage was needed prior to testing response of projected invertebrate vital signs to meadow change. Particular needs included information on fine-scale temporal changes through the growing season, more intensive aquatic phase sampling, comparative sampling in both subalpine and montane meadows, and assessment of relationships between invertebrates, vegetation, and physical parameters. A pre-project report/literature review was also requested and has been delivered. We sampled meadow habitat intensively through the 2004 and 2005 growing seasons, including both aquatic and emergent portions of meadows. Sites were located in the subalpine Tuolumne Meadows system of Yosemite National Park and a series of montane meadows near the Giant Forest in Sequoia National Park. In Tuolumne, we sampled a series of sites weekly through the dynamic first three to four months of the season and then continued bi-weekly sampling until road closure. At the Giant Forest, we sampled bi-weekly during the first two months of the season followed by monthly sampling until snowfall. We sampled aquatic habitat with a throw trap and terrestrial habitat with a 2 vacuum net. We also performed efficiency tests on the sampling apparatus and tested catch characteristics of vacuum nets, pitfall traps, and sweep nets.
- Type
- Unpublished Report
- Authors
- Holmquist PhD, Jeff; Schmidt-Gengenbach, Jutta
- Date of Issue
- 2006-06-15
- Publisher
- University of California, White Mountain Research Station
- Units
- SEKI , SIEN , YOSE
- Keywords
- Giant Forest, Invertebrates, montane meadows, Sequoia National Park, Sierra Nevada Network, subalpine meadows, throw trapping, Tuolumne Meadows, vacuum netting, Wetlands Monitor