We are participating in a large, collaborative nutrient addition project called the Nutrient Network (NutNet)
the general factors that drive community processes in herbaceous-dominated ecosystems. Nutrient
additions (N, P, and K) and grazing exclosures were implemented beginning in 2008 in order to assess
top-down (consumer) vs. bottom-up (nutrient) controls in these systems. We have set up two sites in
Kentucky that contribute data to this endeavor: one in a managed pasture (dominated by
cool-season, non-native species) located here in Lexington, and a second in a restored native
warm-season grassland in western KY. We monitor tall fescue endophyte infection frequencies at
the mananged grassland site, and levels of seed predation by rodents at both sites in addition to the full
suite of NutNet measurements (biomass, species composition, light availability, etc.). Jim Nelson is the
primary contact for this project.
Visit the NutNet webpage: http://www.nutnet.org
|Managed pasture site at Spindletop Farm, Lexington, KY||Native warm-season grassland site in Auburn, KY.