Hal and Fern Cooper Wildlife Management Area
Basic information
Sample name: Hal and Fern Cooper Wildlife Management Area

Reference: L. T. Vermeire, R. B. Mitchell, S. D. Fuhlendorf, and D. B. Wester. 2004. Selective control of rangeland grasshoppers with prescribed fire. Journal of Range Management 57(1):29-33 [ER 2162]
Country: United States
State: Oklahoma

Coordinate: 36° 34' N, 99° 34' W
Basis of coordinate: stated in text
Geography comments: "about 15 km northwest of Woodward"
Climate and habitat
Habitat: temperate savanna
Substrate: ground surface
Disturbance: grazing
WMT: 29.0
CMT: 1.0
MAP: 572.0
Habitat comments: "a mixed prairie shrubland on undulating sandhills with slopes of 1 to 12%... Sand sagebrush (Artemisia filifolia Torr.) was the principal woody plant.... Pastures were lightly stocked (21-23 AUD ha-1) with cattle annually from April to September"
Life forms: orthopterans
Sites: 24
Site area: 96.000
Sampling methods: no design, sweep nets
Sample size: 251
Years: 2000, 2001
Sampling comments: "We selected 24, 4-ha plots... at least 1.6 km apart. Plots were blocked by pasture and randomly assigned fall-burned, spring- burned, or non-burned treatments within blocks, with 4 replications per burn treatment for each of 2 years... Grasshoppers were sampled... at the end of July 2000 and in mid-August 2001. Sampling was conducted by sweeping a standard canvas beating net (38-cm diameter)... Each plot was sampled with 150 sweeps from 3 randomly located 50-sweep transects... Grasshopper abundance across species was greater in 2000 than 2001 at 13 and 8 grasshoppers per 150 sweeps"
abundance per 150 sweeps figure and percentages in table imply that about 250 grasshoppers were sampled, allowing back-computation of counts
Sample: 2164
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-08-03 13:18:00
Modified: 2016-08-03 13:18:00
Abundance distribution
14 species
5 singletons
total count 251
Fisher's α: 3.200
geometric series k: 0.6795
Hurlbert's PIE: 0.5967
Shannon's H: 1.4089
Good's u: 0.9801