to 50 percent ccrrposition (by v^eight) vath grazing. Ptough fescue 

 decreased dramatically with grazing frcm 80 to 5 percent 

 cornposition, indicating a grazing-induced serai ccmmunity 

 daninated by needle-and- thread. This grazing response also 

 indicates a substantial deviation frcm I-lisggler and Stew-art's 

 (1980) rough fescue/Idaho fescue habitat type, since their paired 

 stands for the type do not shew needle- and- thread as a primary 

 increaser. 



Grassland similar to the rough fescue/bluebunch wheatgrass habitat 

 type was observed en slightly drier sites. 



It is likely that additicxial investigaticns will delineate several 

 associations for foothills grassland, reflecting the range of site 

 differences within this zone. 



Mcntane grassland . As in the foothills grassland zone, rough 

 fescue is the dominant species over most of the montane grassland. 

 Potential habitat types within this zore include: 



Rough fescue/ Idaho fescue 



Rough fescue/bluebunch wheatgrass 



Idaho fescue/bluebunch v^eatgrass 



These types were identified by Culwell et al. (1989) in the 

 montane zone of the Little Rocky Fountains. Qualitative 



26 



