Jeffrey George Holmquist
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Dr. Jeffrey George Holmquist Research Scientist White Mountain Research Center Institute of the Environment and Sustainability University of California 3000 E. Line St Bishop, CA 93514 United States of America Phone: +1 760 937 6317 E-mail: jholmquist(at)ucla.edu URL Institution: www.wmrc.edu/ Personal URL: link |
Additional functions:
Editorial Board, Ecological Indicators
Key Publications of Jeffrey George Holmquist (up to ten) :
Millar, CI, RD Westfall, A Evenden, JG Holmquist, J Schmidt-Gengenbach, RS Franklin, J Nachlinger, DL Delany. 2015. Potential climatic refugia in semi-arid, temperate mountains: Plant and arthropod assemblages associated with rock glaciers, talus slopes, and their forefield wetlands, Sierra Nevada, USA. Quaternary International 387:106–12
Holmquist, JG, J Schmidt-Gengenbach, JW Roche. 2015. Stream macroinvertebrates and habitat below and above two wilderness fords used by mules, horses, and hikers in Yosemite National Park. Western North American Naturalist 75:311-324
Holmquist, JG, JM Schmidt-Gengenbach, EA Ballenger. 2014. Patch-scale effects of equine disturbance on arthropod assemblages and vegetation structure in subalpine wetlands. Environmental Management 53:1109–1118
Holmquist, JG, J Schmidt-Gengenbach, and A Demetry. 2014. Efficacy of low and high complexity vegetation treatments for reestablishing terrestrial arthropod assemblages during montane wetland restoration. Restoration Ecology 22:649–656
Holmquist, JG, J Schmidt-Gengenbach, SA Haultain. 2013. Equine grazing in managed subalpine wetlands: Effects on arthropods and plant structure as a function of habitat. Environmental Management 52: 1474-1486
Holmquist, JG, TJ Waddle. 2013. Predicted macroinvertebrate response to water diversion from a montane stream using two-dimensional hydrodynamic models and zero flow approximation. Ecological Indicators 28:115-124
Holmquist, JG, J Schmidt-Gengenbach, SA Haultain. 2013. Effects of a long-term disturbance on arthropods and vegetation in subalpine wetlands: manifestations of pack stock grazing in early versus mid-season. PLOS ONE 8: 1-10. e54109
Waddle, TJ, JG Holmquist. 2013. Macroinvertebrate response to flow changes in a subalpine stream: predictions from two-dimensional hydrodynamic models. River Research and Applications 29: 366–379
Holmquist, JG, JR Jones, J Schmidt-Gengenbach, LF Pierotti, JP Love. 2011. Terrestrial and aquatic macroinvertebrate assemblages as a function of wetland type across a mountain landscape. Arctic, Antarctic, and Alpine Research 43: 568-584
Holmquist, JG, J Schmidt-Gengenbach, SA Haultain. 2010. Does long-term grazing by pack stock in subalpine wet meadows result in lasting effects on arthropod assemblages? Wetlands 30:252-262
Expertise of Jeffrey George Holmquist:
| Expertise Category | Specific Expertise |
|---|---|
| Expert Type | Scientific / Fundamental Research |
| Applied Sciences / Technologies / Engineering | |
| Research Interface / Management | |
| Topic Hydrosphere | Hydrosphere |
| Fresh Water Systems / Rivers / Lakes | |
| Topic Biosphere | Biosphere |
| Plants | |
| Animals | |
| Biodiversity | |
| Topic Integrated Systems | Integrated Systems and Ecology |
| Life Cycle | |
| Topic Ecosystems | Ecosystems |
| Terrestrial Ecosystems | |
| Marine Ecosystems | |
| Topic Economy/ResourceUse | Economy / Resource Use |
| Tourism | |
| Land Cover / Land Use / Landscape | |
| Time Frame | Recent / Today |
| Statistical Focus | Mean Change / Trends |
| Variability | |
| Time Scale | Seasonal / Annual |
| Decadal / Centennial | |
| Methods | Data Collection |
| Data Collection - Measurement | |
| Data Analysis | |
| Literature Study | |
| Mountain Research Initiative | Long-term monitoring and analysis of indicators of environmental change in mount |
| Sustainable land use and natural resources management | |
| North America |
Specialties of Jeffrey George Holmquist:
My research addresses questions concerning plant-animal interactions, landscape structure as a determinant of faunal movement and assemblage character, and the effects of anthropogenic and natural disturbance on ecological function. Much of our team's work emphasizes invertebrates, although we utilize other taxa as questions dictate. We have used both experimental and observational approaches, and recent studies have extended across several scales, ranging from patch boundary dynamics at the microhabitat level to experimental manipulations of river flow. This work has taken us to alpine meadows and streams, montane ponds, tropical seagrass meadows, and desert springs and playas.
Last update: 1/10/19
Source of data: ProClim- Research InfoSystem (1993-2024)
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