Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network

  Advanced Search  

Vegetatio72:159-166 (1987) Dr W. JunkPublishers,Dordrecht -Printedin the Netherlands 159

Summary: Vegetatio72:159-166 (1987)
Dr W. JunkPublishers,Dordrecht - Printedin the Netherlands 159
Rates of vegetation change associated with prairie dog (Cynomys
ludovicianus) grazing in North American mixed-grass prairie
Steve Archer, 1,2, M. G. Garrett3& James K. Detling1
1Natural Resource Ecology Laboratory, Colorado State University, Ft. Collins, CO 80523, USA
2present address: Range Science Department, TexasA&M University, College Station, TX 77843-2126,
3pacific Power and Light, Environmental Services, Portland, OR 97204, USA
Keywords: Agropyron, Bouteloua, BuchlOe, Detrended correspondence analysis,Diversity, Ecotype, Herbivory,
Stipa, Structure
A prairie dog (Cynomys ludovicianus) colony with a known history of habitation was studied to quantify the
effectsof herbivoryon plant species composition, dominance, stature and diversityin a North American mixed-
grass prairie. Gradient analysis was used to quantify the relationship between plant community structure,
prairie dog density, burrow density and habitation history and to document community-level responses of
plants subjected to heavy grazing pressure. The results quantifythe type, rate and extent of change which plant
populations and communities may undergo in response to the differential grazing of plants variously tolerant
of defoliation.


Source: Archer, Steven R. - Savanna/Woodland Ecology Lab., School of Natural Resources and the Environment, University of Arizona


Collections: Environmental Sciences and Ecology