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He and his team investigate important interactions among these trophic levels, which, in turn, facilitate energy and nutrient flows in Yellowstone grasslands and foster stability of this ecosystem that experiences high chronic levels of grazing.
The Frank Lab utilizes field and laboratory experiments. In the field, he and his team erect ungulate enclosures to create an un-grazed treatment and then compare plant growth and soil processes in grazed versus un-grazed grasslands. In the lab, experiments are conducted in the greenhouse or environmental chambers to determine how mycorrhizae, nutrient availability, and soil microbial composition and diversity may mediate the effect of grazing on plant growth.
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