LITERATURE CITED 



Blaisdell, James P. 



1958. Seasonal development and yield of native plants on the Upper Snake River 

 Plains and their relation to certain climatic factors. USDA Tech. Bull. 

 1190, 68 p. 



Bliss, L. C. 



1956. A comparison of plant development in microenvironments of arctic and alpine 

 tundras. Ecol . Monogr. 26 (4) : 303-337 . 



Caprio, J. M. 



1966. Pattern of plant development in the western United States. Mont. Agr. Exp. 

 Sta. Bull. 607, 42 p. 



Costello, David F., and Raymond Price 



1939. Weather and plant development data as determinants of grazing periods on 

 mountain range. USDA Tech. Bull. 686, 31 p. 



Holway, J. G., and R. T. Ward 



1965. Phenology of alpine plants in northern Colorado. Ecology 46(1): 73-83. 



Hopkins, A. D. 



1938. Biocl imatics--a science of life and climatic relations. USDA Misc. 

 Publication 280, 188 p. 



Hutchings, Selar S. , and Jack E. Schmautz 



1969. A field test of the relative-weight-estimate method for determining 

 herbage production. J. Range Manage. 22(6): 408-411. 



Mueggler, W. F. 



1967. Response of mountain grassland vegetation to clipping in southwestern 

 Montana. Ecology 48 (6) : 942-949. 



1971. Weather variations on a mountain grassland in southwestern Montana. USDA 

 Forest Service Res. Pap. INT-99,"25 p.". 



Smo 1 i ak , S . 



1956. Influence of climatic conditions on forage production of shortgrass 

 rangeland. J. Range Manage. 9(2): 89-91. 



USDA Forest Service 



1969. Range environmental analysis handbook. FSH 2209.21, R-1 . 



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•CrG PO 78 1 - 136 



