No. of owners State agency 



001 1 



002 1 



004 6 MT Dept. Natural Resources 



005 1 



006 1 MT Dept. Transportation 



007 2 



008 1 



009 1 



010 2 MT Dept. Fish, Wildlife, and Parks 

 Oil 1 



C. Management responsibility: Private, with the exception of state-administered tracts 

 referenced above. 



D. Easements, conservation restrictions, etc.: None. 

 10. Management practices and experience. 



A. Habitat management. 



1. Review of past management and land use experiences. 



a. This taxon: Indirect information is available from the management 

 response research of Arft (1995a) with regard to grazing, haying, and 

 idleness for the species in Colorado and Utah (Note: there were no 

 controls). Inferrence can also be made through Montana observations. 



Livestock grazing is the historic land use throughout this species' 

 habitat in Montan. The species' persistence within suitable habitat 

 coincides with the persistence of ranching. It was not found in 

 settings with intense grazing where there had been a conversion in 

 vegetation type to exotic grasses. It was not found in pastures grazed 

 season-long by horses even though the range was in good condition. 



41 



