Effects of fire and grazing in an arid grasslandecosystem
Southwestern Association of Naturalists
We examined short-term responses of grasses, shrubs, and rodents on experimental plots to determine how manipulations of livestock grazing and prescribed fire affect individual species and community structure in a shrub-invaded arid grassland. Two grasses and Gutierrezia sarothrae were found in lower abundance on burned plots in the growing season after plots burned; all Prosopis glandulosa survived the fire. Total rodent captures and the number of Dipodomys spectabilis did not differ among treatments. No significant interaction between burning and grazing was observed. Fire seems to have few short-term negative effects on species in this system.
Valone, T.J., S.E. Nordell, S.K.M. Ernest. 2002. Effects of fire and grazing in an arid grassland ecosystem. Southwestern Naturalist 47: 557-565.