Last modified:

Wednesday, 23-Jan-2013 11:46:34 MST


 

Research

Current & Ongoing Projects

 

 

Completed Projects

NOAA Climate and Global Change Postdoctoral Fellowship Program. 2003-2005. Impact of woody plant proliferation and land use history on soil C pools and processes. CO-PI

USDA Managed Ecosystems Postdoctoral Fellowship Program. 2003-2005. Carbon and nitrogen dynamics in rangelands: effects of contrasting grazing and brush management practices. CO-PI

NSF-Ecosystems. 2002. Research Experience for Undergraduates. DEB-9981723. CO-PI

NSF-Ecology. 2002. Research Experience for Undergraduates. DEB-9815607. PI

NASA LCLUC-Carbon Cycle Initiative. 2001-2004. Regional NPP and Carbon Stocks in South-western USA Rangelands: Land-use Impacts on the Grassland-Woodland Balance. CO-PI

National Center for Ecological Analysis & Synthesis. Interactions in mixed tree-grass systems. CO-PI

NSF-Ecology. 1999-2001. Facilitation, competition and woody patch dynamics in a savanna parkland. PI

NASA/EOS.1991-2001. Using multi_sensor data to model factors limiting carbon balance inglobal arid and semi-arid lands.(NAGW-2662). CO-PI

NASA Land Cover Land Use Change Program. 1997 - 2000. Quantifying grassland to woodland transitionsand the implications for carbon and nitrogen dynamics in the South Western United States. CO-PI

USDA/National Research Initiative. 1996 - 1999. Historic change in tree / grass abundance: implication for C and N storage. PI

USDA / CSRS Rangeland Research Program. 1996 - 1999. Quantification of vegetation transitions and thresholds on diverse landscapes. PI

The Texas Nature Conservancy. 1996-1997. Woody plant invasion in a south Texas savanna: pattern and process. PI

TAMU Faculty Mini-Grant Program. 1996. New tools for climate / vegetation reconstruction in arid lands. (FMG 96 -64). PI

Rob & Bessie Welder Wildlife Foundation. 1995-1997. Ecology of brush invasion in southTexas. PI

USDA/CSRS Rangeland Research Program. 1995-1998. Hydrologic mechanisms determiningplant species interactions in grazed savannas. CO-PI

USDA/Soil Conservation Service. 1995. Analysis of rangeland woody plant elements in 3rdResource Conservation Act appraisal. PI

USDA/CSRS Rangeland Research Program. 1994-1996. Tree/shrub influence on the nitrogencycle of a subtropical savanna ecosystem. CO-PI

Texas Higher Education Coordinating Board Advanced Research Program. 1994-1996. Vegetation dynamics, land cover and tropospheric chemistry. (999902126). PI

USDA/Soil Conservation Service. 1994. Analysis of rangeland woody plant elements in 3rdResource Conservation Act appraisal. (68-3A75-4-15). PI

USDA/Soil Conservation Service. 1993. Analysis of rangeland woody plant elements in 3rdResource Conservation Act appraisal.(68-3A75-4-15). PI

USDA/CSRS Rangeland Research Program. 1993-1995. Spatial modeling of succession in asubtropical savanna: an integrated approach. (93-38300-8730-9304280). PI

DOE/National Institute for Global Environmental Change. 1993-1994. Land cover change andregional tropospheric chemistry.(DE-F03-90ER61010). PI

USDA/National Research Initiative. 1992-1995. A demographic basis for monitoring vegetationchange in grassland communities.(92-37101-7463). CO-PI

NASA/Graduate Student Research Program. 1990-92. Using multi-sensor data to model effectsof biomass combustion on ecosystem dynamics. PI

Texas Nature Conservancy. 1990-91. Plant communities of the Mesquite Brushland Preserve,Duvall, Co., Texas. PI

NSF/Ecosystems. 1991-94. Spatial dynamics at individual and landscape levels: vegetationcluster processes in semi-arid ecosystems. (BSR-9109240). CO-PI

USDA/CSRS Southern Region Integrated Pest Management Program. 1990-1992. Manipulationof cattle-vegetation-tick interactions: unexplored IPM strategies. (90-34103-4979). CO-PI

USDA/CSRS Rangeland Research Program. 1989-1991. Dissemination of seed by cattle: potentials for rangeland revegetation (continuation).(89-38300-405). CO-PI

USDA/CSRS Rangeland Research Program. 1989-1992. Succession on mixed-shrublands:reconstructing the past and predicting the future.(89-38300-4508). PI

USDA/CSRS Rangeland Research Program. 1988-89. Dissemination of seed by cattle: potentialsfor rangeland revegetation.(88-38300-3625). CO-PI

USDA/CSRS Rangeland Research Program. 1986-89. An ecological basis for a workingbionomic model.(86-2-2925). PI