Landscape Restoration

Thomas Wilson

Thomas
B
Wilson
Title: 
Lecturer, Soil, Water and Environmental Science
Additional Titles and Departments: 
Affiliate Faculty, Institute of the Environment
Related Departments, Schools or Colleges and/or Program(s): 
Education: 
Ph.D., Soil Chemistry, The University of Arizona, 2001.
Phone: 
(520) 621-9308
Photo of Thomas Wilson

My research emphasis has been on the impact of invasive species on ecosystems in the SW United States relative to fire frequency and soil chemistry. My current position emphasizes instruction and curriculum development.

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Shannon
E
McNeil
Photo of Shannon E. McNeil
Degree Program: 
msc

I am interestd in the effects of habitat fragmentation and isolation on avian dispersal, and how to improve current habitat restoration practices within the current agricultural landscape. I am developing genetic markers in yellow-billed cuckoos as a tool to measure current western riparian connectivity.

Topic or title of your dissertation/thesis: 

Yellow-billed cuckoo Coccyzus americanus population genetics within a fragmented landscape.

Advisor(s): 
Expected Graduation Date: 
December, 2012

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Pacifica
Sommers
Photo of Pacifica Sommers
Degree Program: 
phd
Primary Department/Unit: 

After interning with the Nevada division of the Bureau of Land Management (Conservation and Management program, 2007), then interning for National Wildlife Federation's public affairs office and working for another year in Washington, DC, on climate policy, I decided to return to science and academics. I am interested in how and when similar species can coexist, which drives biodiversity and its changes.

Topic or title of your dissertation/thesis: 

Buffelgrass (Pennisetum ciliarus syn Cenchrus ciliarus) is a perennial C4 grass native to Africa and Southwest Asia. It has been planted extensively for five decades in semi-arid regions, such as Australia, Brazil, and Sonora, for cattle forage. Over the past thirty years, however, buffelgrass has colonized ecosystems outside of the pasture, where it fills in bare space to become a fire hazard and decrease native vegetation diversity. This has become a serious problem in Southeastern Arizona, where buffelgrass does very well in the habitat of the iconic saguaro cactus and has fueled enormous wildfires.
I propose to develop a stage-structured model with variable growth and survival rates to investigate how buffelgrass may be excluding native vegetation. I will consider both resource competition and variable predation by granivores and herbivores as density-dependent mechanisms. I will also incorporate buffelgrass removal as an additional source of mortality, and ask at what level that mortality must be set in order to preserve native diversity, and how the native community should respond when buffelgrass is removed.
I propose to parameterize this model and test its predictions in a field experiment along the wildland-city border in the foothills of the Catalina Mountains just north of Tucson. I hope to begin pilot studies later in the spring of 2011.

Advisor(s): 
Expected Graduation Date: 
May, 2014

Elizabeth Scott

Elizabeth
Scott
Title: 
Assistant Professor, Landscape Architecture
Additional Titles and Departments: 
Affiliate Faculty, Institute of the Environment
Education: 
MLA, University of Oregon, 2005
Phone: 
(520) 626-9412
E. Scott

Elizabeth Scott is an assistant professor in the College of Architecture and Landscape Architecture at the University of Arizona who brings experience in community design and planning to the faculty.  Her landscape research addresses social-ecological linkages between regional, community and site scales using GIS modeling as a base.  Currently, she is working on a post-occupancy evaluation of conventional and sustainable communities to compare social-ecological impacts of the different styles of development. 
 

Stephen L Buchmann

Stephen
L
Buchmann
Title: 
Adjunct Associate Professor, Department of Entomology
Additional Titles and Departments: 
Research Associate, Department of Ecology and Evolutionary Biology
Affiliate Faculty, Institute of the Environment
Related Departments, Schools or Colleges and/or Program(s): 
Education: 
Ph.D., Entomology, The University of California, Davis, 1978
Phone: 
(520) 797-2638
Photo of Stephen Buchmann

I'm a melittologist (native bee researcher) who specializes in pollination ecology, especially the role of bees as pollinators of native plants and crops. Currently an adjunct professor in Entomology and a Research Associate in EEB. I am the international coordinator for The Pollinator Partnership (www.pollinator.org) an environmental non-profit organization I helped establish 11 years ago. To date, I've published 12 books and over 170 scientific articles. In the past, I taught beekeeping and pollination courses at the University of Arizona. 

Environmental Themes: 

Eva Marie Levi

Eva
Marie
Levi
Photo of Eva Marie Levi
Degree Program: 
phd
Other Departments or Unit Affiliations: 

I am primarily interested in landscape ecology in water-limited ecosystems.  My research interests include vegetation and soil ecology and how plant-soil dynamics respond to changes in vegetation community composition, climate and land use.  My research focuses on the phenomena of woody plant encroachment and desertification in drylands and how these alter landscape-scale ecosystem processes such as organic matter decomposition, redistribution of materials across the landscape by wind and water, and soil formation.

Topic or title of your dissertation/thesis: 

My dissertation research encompasses several projects.  Primarily, my research focuses on the rates and dynamics of decomposition of herbaceous organic matter in a dryland ecosystem experiencing woody plant encroachment and elucidating the relative importance of UV radation and soil-litter mixing as decomposition drivers.  I am also doing research on decomposition of woody detritus, on the formation of woody detritus "litter dams" (which capture sediment and organic matter and may serve as the center for formation of islands of fertility), and on rates of soil formation in a dryland ecosystem.

Advisor(s): 
Expected Graduation Date: 
December, 2013

Steven E Smith

Steven
E
Smith
Title: 
Associate Professor, School of Natural Resources and the Environment
Additional Titles and Departments: 
Associate Professor, School of Plant Sciences
Related Departments, Schools or Colleges and/or Program(s): 
Education: 
Ph.D., Plant Breeding, Cornell University, 1984.
Phone: 
(520) 621-5325
Photo of Steven Smith

My research is focused on the evolution of adaptation in plants. I have worked primarily with species found on grassland sites. A goal in my work is to link an understanding of plant growth and development processes with local adaptation and to understand the genetic basis for these processes.

Alan Weisman

Alan
Weisman
Title: 
Professor, School of Journalism
Additional Titles and Departments: 
Professor, Center for Latin American Studies
Affiliate Faculty, Institute of the Environment
Education: 
MS, Journalism, Northwestern University, 1971
Phone: 
(520) 626-6407
Photo of Alan Weisman

Alan Weisman teaches international journalism at the University of Arizona. Much of his writing is about how the environment, economics, international relations, and human society and culture intersect. He is the author of An Echo In My Blood, Gaviotas: A Village to Reinvent the World, La Frontera: The United States Border With Mexico, and We, Immortals. His reports, set in the United States, Mexico, Canada, Central and South America, the Caribbean, Antarctica, Europe, the former Soviet Union, and the Middle and Far East, have appeared in The Atlantic Monthly, Harper’s, The New York Times Magazine, The Los Angeles Times Magazine, Audubon, Mother Jones, Discover, Condé Nast Traveler, and in several anthologies. They have also aired on National Public Radio and Public Radio International. He is a senior producer for Homelands Productions. His current projects include research on the future of energy, and his forthcoming book The World Without Us, which discusses what the Earth would be like without human beings.

Larry D Howery

Larry
D
Howery
Title: 
Professor, School of Natural Resources and the Environment
Additional Titles and Departments: 
Rangeland Extension Specialist, School of Natural Resources and the Environment
Education: 
PhD, Range Science, Utah State University, 1993
Phone: 
(520) 621-7277
Photo of Larry Howery

Larry Howery is a professor and rangeland extension specialist in SNRE.  His appointment is 65 percent extension, 25 percent research, and 10 percent administration/service. His job responsibilities involve developing and conducting a program of extension and research to promote the sustainable management of rangeland ecosystems. His approach to extension and research has been programmatic, focused in the following three areas: 1) Noxious, Invasive Plants, 2) Animal Foraging Behavior and Distribution, and 3) Rangeland and Natural Resource Ecology and Management. Research projects are closely allied with extension programs. A programmatic approach has allowed him to design and implement the kind of programs necessary to meet the evolving needs of Arizona's citizenry as stated in the Cooperative Extension Service mission statement (i.e., "the Cooperative Extension Service is constantly changing to meet the shifting needs and priorities of the people it serves").

Sharon B Megdal

Sharon
B
Megdal
Title: 
Director, Water Resources Research Center
Additional Titles and Departments: 
C.W. and Modene Neely Endowed Professor for Excellence in Agriculture and Life Science
Director, University of Arizona TRIF Water Sustainability Program
Professor/Specialist, Department of Agricultural and Resource Economics
Professor/Specialist, Department of Soil, Water and Environmental Science
Courtesy Appointment, Professor, School of Government and Public Policy
Courtesy Appointment, Professor, School of Geography and Development
Courtesy Appointment, Professor, Planning Degree Program- College of Architecture and Landscape Architecture
Professor, Public Health
Member, Arid Lands Resource Sciences Graduate Interdisciplinary Program
Affiliate Faculty, Center for Middle Eastern Studies
Affiliate Faculty, Institute of the Environment
Elected Member, Central Arizona Water Conservation District Board of Directors
Education: 
PhD, Economics, Princeton University, 1981
Phone: 
(520) 621-9591
Photo of Sharon Megdal

Sharon Megdal is the director of the University of Arizona Water Resources Research Center. She also serves as a professor and specialist in the Department of Agricultural and Resource Economics. Her work focuses on state and regional water resources management and policy with areas of focus including storage and recovery programs, regional approaches to water management, ecosystem restoration, and the role of the private sector in water delivery. She also writes a public policy column for the Arizona Water Resource, the bi-monthly Water Resources Research Center newsletter, and regularly makes presentations on water issues to diverse audiences.