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Montana Valley and Foothill grasslands
View National Geographic WildWorld profile,(WildWorld
WWF Wildfinder animal species list
prairie near front range of Alberta (c) 2005 Scott and Ruth Bassett
Source of bioregions data: Olson, D. M. and E. Dinerstein. The Global 200: Priority ecoregions for global conservation. (PDF file) Annals of the Missouri Botanical Garden 89:125-126.
Distinctiveness (1=highest,4=lowest): 4
The region has a high diversity of vegetation communities in close proximity to each other. The undeveloped valleys provide critical links between mountain ranges, allowing for dispersal of large mammals, including Ursus acrtos (grizzly bear).*
Conservation Status (1=most endangered, 5=most
intact): 3 (vulnerable)
Approximately 25% of this ecoregion remains intact. Grazing, draining wetlands, conversion to row crops, and residential development are major threats. Subdivision for homes results in fragmentation and facilitates the introduction of invasive species.*
Agropyron (wheatgrass) species
Fescuta (fescue) species
Artemisia (sagebrush) species
* Ricketts, T.H., E. Dinerstein, D.M. Olson, C.J. Loucks, et al. (1999) Terrestrial Ecoregions of North America: A Conservation Assessment. World Wildlife Fund - United States and Canada. Island Press, Washington, D.C. pp. 190-191.