Range ecology -- South Dakota; Experimental rangelands -- South Dakota; Pittman-Robertson Project (S.D.)
Although this clipping experiment has not been in operation long enough to produce many conclusions, it appears quite likely that Oregon Grape will disappear from all of the plots within a few years even under a simulated utilization of only 25 per...
Antelopes -- South Dakota; Pronghorns -- Mortality -- South Dakota; Pronghorns -- Age -- South Dakota; Pittman-Robertson Project (S.D.)
Between July 2 and September 18 of 1952 six 460 mile transects were flown to check antelope age ratios to find out if the apparent loss of kids took place during the summer months. Since the age ratios remained relatively constant during this...
Antelopes -- South Dakota; Pronghorns -- South Dakota; Pittman-Robertson Project (S.D.)
This is a job completion report, as require by the Federal Aid in Wildlife Restoration Act. The focus of this report is South Dakota's antelope population.
Experimental rangelands -- South Dakota; Range ecology -- South Dakota; Pittman-Robertson Project (S.D.)
In 1945, three one-acre plots were established in the Annie Creek Area. One plot was left as an unfenced control, another was enclosed with a permanent deer-proof fence, and the third was enclosed in a deer-proof fence that could be opened for a...
Range ecology -- South Dakota; Experimental rangelands -- South Dakota; Pittman-Robertson Project (S.D.)
Briefly stated, these studies attempt to determine the degree of competition between deer and domestic livestock, annual forage production, annual utilization of browse by deer, and use-factors for key food plants.
Results of this experiment have...
Range ecology -- South Dakota; Experimental rangelands -- South Dakota
This study initiated in 1947 within deer-proof exclosures attempts to determine the effect of use variables upon browse productivity. Within four 100 square foot plots annual growth is clipped from browse species at use intensities of 25%, 50%, 75%...
Range ecology -- South Dakota; Experimental rangelands -- South Dakota; Pittman-Robertson Project (S.D.)
The Annie Creek and Hepler Experimental Range Plots established in 1945 consist of an acre each of Deer Proof, Controlled Browsing and Unfenced at Annie Creek plus an additional Livestock Proof Acre at the Hepler Plots. Deer utilization each...
Range ecology -- South Dakota; Experimental rangelands -- South Dakota; Pittman-Robertson Project (S.D.)
This job, primarily designed to establish use-factors for key browse plants, has been a constant source of frustration during the last seven years, since the normal production of browse even under complete protection has varied from a minus 60...