Third Annual Symposium
Recent research at the USDA-ARS Walnut Gulch Experimental
Watershed (WGEW) and the
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We would like to announce the third annual Research Insights in Semiarid Ecosystems (RISE) Symposium. The objectives of the symposium are to share recent results of scientific research at the USDA-ARS Walnut Gulch Experimental Watershed (WGEW) and the University of Arizona Santa Rita Experimental Range (SRER), to encourage future research activities at the WGEW and the SRER, and to promote the WGEW and the SRER as outdoor scientific laboratories.
The Symposium will feature invited speakers presenting either recent research on the WGEW or SRER or new reflections on earlier work conducted at either site. There will be time for questions from the audience, which will be made up of federal agency and university researchers, students, and stakeholders from southern Arizona.
There will also be poster sessions where students and researchers are encouraged to report on completed or in-progress studies. Abstract submission deadline for poster presentation is 15 September 2006.
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8:30-9:00 |
Registration |
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9:00-9:10 |
Mitch McClaran andSusan Moran |
RISE Welcome |
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9:10-9:30 |
Travis Huxman |
Ecosystem response to precipitation pulses on the Santa Rita Experimental Range |
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9:30-9:50 |
Jeannie McLain |
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9:50-10:10 |
George Ruyle UA SNR |
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10:10-10:30 |
Tim Keefer |
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10:30-11:00 |
Poster introductions |
Poster abstracts provided by poster authors |
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11:00-1:00 |
Poster Session
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Authors will be with their posters in the hall outside the conference room |
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12:00-1:00 |
Lunch w/ Posters |
Provided at the meeting by RISE |
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1:00-1:20 |
On-going research at the Desert Laboratory and opportunities for collaboration |
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1:20-1:40 |
David D. Breshears, J.P. Field, C.B.
Zou, and J.J. Whicker |
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1:40-2:00 |
Jeff StoneUSDA ARS SWRC |
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2:00-2:30 |
Discussion |
All speakers and poster authors will be in attendance |
Posters
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P1 |
C. Tewksbury, J. Root, C. Tewksbury, S. Archer and C. McMurtry UA SNR |
Woody Debris in Desert Grasslands?
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P2 |
C. McDonald UA SNR |
Restoring Native Semi-Arid Grassland Communities: Using Fire and Livestock Grazing to Reduce the Abundance of the Non-Native Lehmann Lovegrass |
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P3 |
H. Throop, S. Archer, C. McMurtry and M. McClaran UA SNR |
Relationships between aboveground woody biomass and soil organic carbon in a semi-desert grassland |
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P4 |
S. Woods and M. Lanning UA SNR |
Seedling establishment of woody plants: the first step in encroachment |
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P5 |
A. Nafus, M. McClaran and C. McMurtry UA SNR |
Allometric equations to estimate biomass of perennial grasses |
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P6 |
F. Mashiri, M. McClaran amd J. Fehmi UA SNR |
Comparing short and long-term effects of grazing systems, precipitation and mesquite on grass dynamics |
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P7 |
S. Elliott Dartmouth College |
Relative roles of plant-animal interactions for seedling recruitment in a water-limited environment |
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P8 |
C. Huang, S. Archer and S. Marsh UA SNR |
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P9 |
D. Browning and S. Archer UA SNR |
Spatial patterns and trends in woody plant (Prosopis velutina) biomass under contrasting grazing practices (1932 – 2006) |
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P10 |
C. McMurtry, S. Archer, M. McClaran, D. Browning, and H. Throop UA SNR |
Estimating Prosopis velutina aboveground biomass: field and remote sensing approaches
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P11 |
E. Courtright, J. Herrick, B. Lavine and J. Repp USDA-ARS JER |
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P12 |
A. Laliberte, A. Rango and A. Slaughter USDA-ARS JER |
Unmanned Aerial Vehicles (UAVs) for Rangeland Remote Sensing |
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P13 |
C. Potenza, A. Slaughter, I. Reyes, R. Sedillo, M. Lucero and J. Barrow USDA-ARS JER |
Use of Gene Specific primers to Identify Fungal Endophytes of Native Grasses
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P14 |
D. Peters and C. Laney USDA-ARS JER |
Trends in Long-Term Ecological Data: a multi-agency synthesis project |
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P15 |
W. Cable and R. Scott USDA-ARS SWRC |
Quantifying the hydrological significance of tree hydraulic redistribution in a savanna ecosystem. |
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P16 |
M. Nichols, K. McReynolds and C. Reed USDA-ARS SWRC |
The use of rock check dams as a conservation practice in Southeastern Arizona |
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P17 |
J. Field, D. Breshears, C. Zou and J. Whicker UA SNR |
Wind and Water Erosion: Competing Processes on the Santa Rita Experiment Range |
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P18 |
E. vanderLeeuw, M. McClaran, S. Marsh, C. Wissler and W. van Leeuwen UA SNR |
Two Types of Residential Developments and their Impacts on the Santa Rita Experimental Range
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P19 |
C. Boodleman, D. Breshears and C. Zou UA SNR |
Near ground solar radiation as a function of woody canopy cover: Testing initial predictions and trends in mean and variance in the Santa Rita Experimental Range |
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P20 |
M. Nearing, A. Kimoto, M. Nichols and J. Ritchie USDA-ARS SWRC |
Spatial patterns of soil erosion and deposition in two small, semiarid watersheds |
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P21 |
C. Shipek and M. Nichols USDA-ARS SWRC |
Channel Response to Changes in the Runoff Regime along the Walnut Gulch Channel |
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P22 |
J. Buono and J. Stone USDA-ARS SWRC |
Variation in Overland Flow Velocity: A Shrub Grass Comparison from Southern Arizona |
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P23 |
S. Burns, S. Scott, D. Goodrich, M. Hernandez, L. Levick, A. Cate, W. Kepner, D. Semmens, S. Miller, P. Guertin USDA-ARS SWRC |
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P24 |
S. Moran, R. Scott, T. Keefer, G. Paige, W. Emmerich, M. Cosh and P. O’Neill USDA ARS SWRC |
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RISE Organizing Committee: Mark Heitlinger, Mitch
McClaran, Susan Moran
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Acronyms:ALARC: Arid-Land Agricultural
Research Center |