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Grad student talk - Nutrient controls on ecosystem development in the Puca Glacier forefield, Peru

Thursday, January 22, 2015, 4:30PM - 5:30PM


Joey Knelman


RL-1 room 269

Glacial forefields offer a study system in which to evaluate ecosystem development across a temporal gradient within a single landscape. Substrate exposed by deglaciation
undergoes important chemical and physical transformations mediated by bacteria even long before plant colonization. Thus, microbial mediated biogeochemistry plays an important role in setting the trajectory for the development of ecosystem structure and function. I will present on a study that examines factors that control the assembly of microbial communities and their function across 100 years of succession in the Puca Glacier forefield, a high elevation forefield located in the Cordillera Vilcanota of Peru. This research suggests the role of nutrient limitation in structuring microbial communities and therein important biogeochemical cycles in ecosystem succession.