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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.
SNRE Alumnus Sharon Biedenbender, an invasive species coordinator with the U.S. Forest Service is helping to coordinate a volunteer effort to eradicate buffelgrass in Sabino Canyon.
Interested volunteers can participate in a two- to three- hour work session on Sept. 29th, in observance of National Public Lands Day.
Area of Expertise:Use of thatch to reduce buffelgrass seedling emergence
Invasive buffelgrass (Pennisetum ciliare) is a major threat to the Sonoran Desert ecosystem. Manual removal continues to be an important method of buffelgrass control in southern Arizona. A problem of traditional manual removal practices is that they create areas of bare, disturbed soil that are often very favorable for buffelgrass seedling emergence. I am testing the use of thatch comprised of uprooted buffelgrass plants as a means of limiting seedling emergence in treated areas. I am investigating whether light attenuation resulting from thatch is a major fact
Area of Expertise:invasive plant ecology and management, vegetation monitoring, restoration/revegetation of severely disturbed arid ecosystems, coordination of regional vegetation management efforts
Starting in 1999, I began working with the Natural Resources Conservation Service Plant Materials Center in Tucson. I assisted with the production and maintenance of field and greenhouse plantings, made seed and propagule collections from the field, and assisted with the installation of experimental in situ plantings and the evaluation of research results. I became familiar with concepts of plant breeding systems, problems with selection on growing wildland plants in crop settings, and the selection of propagule source populations for maintenance of genetic diversity in new
On August 30th, the School of Natural Resources and the Environment welcomed all graduate students to attend the SNRE Back-to-School Reception with faculty.
Each Professor prepared a slide to introduce themselves and discuss their research. For those that were not able to attend, the slides can be found here: New Student Orientation - About Our Faculty.
On Saturday April 9th, 2011 graduate students from SNRE assisted the Nature Conservancy in removing invasive species from the Patagonia-Sonoita Creek Preserve. Students spent three hours removing Tree of Heaven plants in an attempt to promote the establishment of native seedlings such as Black Walnut. In addition to this, students surveyed the area along Sonoita Creek identifying invasive Pampas Grass and removing one large plant. SNRE graduate students hope to provide more of these opportunities for students to engage themselves with each other and the community in the future.
04/15/2011 - 1:00pm
Title: "A Yankee in King Arthur’s Court": the invasive grey squirrel in the UK, a case of disease mediated-competition with the native European red squirrel
Place: BSE 225
Speaker: Peter Lurz, University of Newcastle upon Tyne-Centre for Life Sciences Modelling
04/22/2011 - 1:30pm
Time: 12:30-1:30 PM (note change in time for this seminar)
Place: BioSciences East 225
Speaker: Pablo Garcia, UA Agriculture and Biosystems Engineering (adjunct)
The Southern Arizona Buffelgrass Coordination Center (SABCC), a non-profit organization formed in 2008, was established by its partners in the public and private sectors to coordinate buffelgrass management across multiple jurisdictions in southern Arizona using an adaptive management framework that relies on public consensus, rigorous data management, prioritized science, and decision support models capable of simulating outcomes with different management strategies