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Graduate student opportunities in community and/or ecosystem ecology
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Plant community ecology of Tibetan grasslands. This project is located in Gansu province, China. Compared to grasslands worldwide, Tibetan grasslands have an extremely high level of plant diversity, averaging 30-40 species per 0.25m2. In contrast to other grasslands, forbs can represent up to 95% of NPP. This unique high alpha, high beta diversity and large functional group dominance differences make Tibetan plateau grasslands an ideal system to examine mechanisms driving plant diversity and plant species coexistence. The Tibetan plateau is also characterized by intense above- and belowground herbivory and a long evolutionary history of grazing. We hypothesize that this intense herbivory by a large array of different herbivores is an important factor driving plant diversity. For this project, a Master’s degree in ecology and a working knowledge of Chinese are preferred. Fire, deer browsing and nitrogen additions impacts on ecosystem. This project is at Cedar Creek, LTER in Minnesota. Community and ecosystem patterns are driven by environmental drivers, and drivers such as fire, herbivory and atmospheric nitrogen deposition have changed. This project uses a three factorial experiment (fire, deer fencing and nitrogen fertilization) to examine community and ecosystem consequences of such changes. Both projects, require an interest in community and ecosystem ecology and an undergraduate degree in ecology, or a closely related field. A good speaking and writing ability of English is required. If interested, please contact me. Johannes (Jean) M H Knops School of Biological Sciences University of Nebraska 348 Manter Hall Lincoln, NE 68588 Phone (402) 817 6957 Email: jknops2@unl.edu |
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2楼2016-09-30 08:45:25