The broad goals of my research are to understand the interactions among climate, grazing, and the structure and function of grassland and alpine ecosystems and how human activities and global changes are altering these systems. I address these issues using a suite of study approaches, from experimental manipulations to ecosystem modeling. My work considers multiple scales, from species-level investigations to landscape-scale processes. Moreover, I work across disciplines to understand the complex dynamics of the coupled human-environment system in grassland and alpine regions of the world.
Students
| Kerry Byrne |
 |
| PhD Candidate |
| (co-advised by Bill Lauenroth at the University of Wyoming) |
| kmbyrne@rams.colostate.edu |
| Kerry’s CV |
I am interested in how global change affects plant species composition and species distribution, and how these changes may affect ecosystem functioning. Additionally, I am recently interested in what constitutes “extreme” climatic events, and whether these extreme events can have a disproportionate impact on ecosystem structure and function. My dissertation research examines the effects of climate change on plant species composition and community structure in native grassland communities in the Great Plains of North America, using a combination of field experiments, modeling, and long term data sets to help answer my research questions.
| Laura Dev |
 |
| MS Student, NSF Graduate Fellow |
(co-advised by Cynthia Brown and
Dana Blumenthal) |
| laura.dev@colostate.edu |
| Laura’s CV |
Broadly, I am interested in how climate and land-use act as controls on ecosystem processes and vegetation structure. The focus of my masters research is investigating how the seasonal timing of water availability mediates how grassland plant communities respond to grazing. I have two parts to this: one is a global meta-analysis identifying broad-scale patterns in species compositional response to grazing as a function of climate; the other component is a more mechanistic study looking at changes in plant traits in response to climate and grazing manipulations on the Tibetan Plateau.
| Tsechoe Dorji |
 |
| PhD Candidate |
| (co-advised by Ørjan Totland at the Norwegian University of Life Sciences) |
| tsechoedorji@yahoo.com |
Tsechoe’s CV
Tsechoe’s webpage |
I focus my work on effects of climate change and human disturbances on alpine plant ecology and rangeland health. I am especially interested in how plant phenology and functional traits respond to changes in temperature, water availability and land use patterns. I am currently working on my PhD project using both a natural climate gradient (elevation gradient) and experimental approaches to understand how alpine plant species from different functional groups respond to warming temperature, early spring snow addition, yak grazing and pika grazing. The experimental part of my PhD project is part of an ongoing research project that is led by Dr. Julia Klein. I am also involved in two state major science and technology support projects and one state natural science fund project led by Professor Wei Xuehong from the Agricultural and Animal Husbandry College of Tibet University. I am also principle investigator for a research project called pastoralist cultural and wildlife biodiversity in the Chang Tang Nature Reserve, funded by the ministry of personnel, the People’s Republic of China.
I am interested in how ecosystems are affected by global change, particularly in alpine and grassland regions where people’s close dependence on the landscape creates tightly coupled feedbacks between ecological structure and function, land use, knowledge, and decision making. For my dissertation research in central Tibet, I am examining the effects of changing climate and natural resource management practices on ecosystem processes and plant species composition, as well as on the livelihoods of local pastoralists. I am taking an interdisciplinary approach by linking experimental manipulations, satellite imagery, and household interviews in order to better understand how this social-ecological system will respond to change.
| Bradley Schmidt |
 |
| Undergraduate Honors Research Assistant |
|
|
Lab Alumni
Aaron Berdanier
|
 |
M.S., 2010
Climatic constraints on high-elevation ANPPaaron.berdanier@duke.edu
Aaron’s website |
Dr. Jia Hu
|
 |
Postdoctoral Researcher, 2009-2010
Ecosystem cabon and water dynamics on the Tibetan Plateaujiahu@ucar.edu
Jia’s website |
Dr. Joseph Bump
|
 |
Postdoctoral Researcher, 2008-2009
Ecosystem and Herder Vulnerability to Climate Change on the Tibetan Plateaujkbump@mtu.edu
Joseph’s website |
Visiting Scholars
| Dr. TANG Yanhong |
 |
| National Institute for Environmental Studies, Japan |
| at CSU 2008-2009 |
| yhang@nies.go.jp |
Research Assistants
 |
 |
|
Beth Roskilly
<span “class=”style2”>Post-baccalaureate researcher, 2011
B.A., University of Montana-Missoula
|
Tenzin Tarchen
Undergraduate researcher, 2011
Tibet Agricultural University
|
|
|
 |
 |
|
Jennifer Parrish
Research Experience for Teachers, 2011
Teacher at Union Colony Preparatory School in Greeley, CO
|
Helen Chmura
Watson Fellow,
Post-baccalaureate researcher, 2010-11
B.A., Swarthmore College |
|
|
 |
 |
|
Cullen Chapman
Undergraduate researcher, 2010-2011
Colorado State University
|
Lauren Barry
Post-baccalaureate researcher, 2010
B.A., Washington University
|
|
|
 |
 |
|
Paliza Shrestha
Post-baccalaureate researcher, 2010
B.A., Mount Holyoke College
|
Hoi-Fei Mok
Post-baccalaureate researcher, 2010
B.A., Wellesley College
|
|
|
 |
 |
|
Kristina Halliman
REU student, 2010
State University of New York, Fredonia
|
Chelsea Morgan
Post-baccalaureate researcher, 2010
B.A., University of Colorado-Boulder
|
|
|
LI Chengding
Undergraduate researcher, 2010
Tibet University, Lhasa |
LI Hailin
Undergraduate researcher, 2010
Tibet University, Lhasa |
|
|
 |
 |
|
PAN Jianbing
M.S. student, 2009-2010
Lanzhou University
|
WU Qianru
M.S. student, 2009
Chinese Academy of Sciences
|
|
|
 |
 |
|
Christine Byrne
REU student, 2009
University of California, Berkeley
|
Rinzin
Undergraduate researcher, 2009
Tibet Agricultural University
|
