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Area of Expertise:wildlife conservation and management; population modeling; biomass estimation; avian, mammalian, and invertebrate ecology
Area of Expertise:Ecology and Management of Rangelands
I study the impacts of woody plant encroachment into historic grasslands, specifically the influence of this large-scale land cover change on dryland decomposition and soil formation dynamics.
Area of Expertise:Ecosystem Services, Landcover Change, GIS
I am interested in understanding the impact of landcover change on the environment’s ability to provide ecosystem services. To do this, I am coming up with ways to map select ecosystem services across the Upper San Pedro Watershed, as well as looking for thresholds in water stress that causes vegetation to die off and landcover to change.
Area of Expertise:*
Area of Expertise:Disturbance regimes and impact on carbon cycling on high elevation pine forests
Field Assistant. Department of Ecology and Evolutionary Biology. University of Colorado, Boulder, CO.
Field Assistant. Department of Biology. Toolik Lake Field Station, University of Alaska, Anchorage, AK.
Area of Expertise:Developing an agent-based model of coupled human and natural riparian systems.
I completed a Master's at the University of Illinois studying the role of asymmetric competition on largemouth bass recruitment. During my time in Champaign,I also contributed to the development of a spatially-explicit food web model of the Upper Mississippi River.
I am currently developing an agent-based model of coupled natural and human ecosystems in the Southwest. Specifically, I am modeling how changes in ecohydrology influence human decision-making.
Area of Expertise:Biotic and abiotic drivers of ecosystem processes; ecosystem response to changes in climate, resource availability, and biotic community; social-ecological interactions
I am interested in the biotic and abiotic drivers of ecosystem processes and in how to predict the response of ecosystems to changes in climate, resource availability, and biotic composition. By understanding which alterations in an ecosystem result in large differences in functioning we can provide better information to managers and policy-makers about how to maintain ecosystems while allowing for adaptation to unavoidable changes. I am particularly interested in wetlands and linkages between aquatic and terrestrial systems.
Since 1903, the Santa Rita Experimental Range (SRER) has provided scientists with a unique real-world laboratory. In his interview with the AZ Daily Star Professor Mitch McClaran, the Director of Research at SRER, discusses the 50,000 acre range's impact on the research of sustainable use of rangelands, wildlife, endangered species, and recreation.
Area of Expertise:Semi arid lands, land surface-atmospheric interactions, soil moisture-plant interactions, land surface energy budget
The Kemper and Ethel Marley Foundation has established an endowment for range management. The generous contribution is divided into two components – $1.5 million has already been invested to support the Marley Endowed Chair for Sustainable Rangeland Stewardship, and another $3 million will establish the Marley Program Endowment.
George Ruyle will be the first Marley Endowed Chair. The endowment is testimony to his long and hard work to sustain ranching in the state of Arizona.