Basic information
Sample name: Stavely

Reference: J. M. Hardman and S. Smoliak. 1982. The relative impact of various grasshopper species on Stipa-Agropyron mixed prairie and fescue prairie in southern Alberta. Journal of Range Management 35(2):171-176 [ER 2165]
Country: Canada
State: Alberta

Coordinate: 50° 10' N, 113° 39' W
Basis of coordinate: based on nearby landmark
Geography comments: "80 km northwest of Lethbridge" (coordinate based on Stavely)
Climate and habitat
Habitat: temperate savanna
Substrate: ground surface
Habitat comments: "fescue prairie in the Black soil zone"
Life forms: orthopterans
Sampling methods: no design, sweep nets
Sample size: 2017
Years: 1970 - 1978
Seasons: summer
Sampling comments: "Grasshoppers were sampled annually in late August... The samples were obtained by making 50-1, 000 semi-circular sweeps with a 34-cm diam. net at the rate of one sweep per step"
text states there are 1603 individuals but this does not square with the mean counts in Table 1, which clearly imply there were 900 sweeps and therefore about 2017 captures; this is consistent with there having been 100 sweeps during each of the nine field seasons, so 900 sweeps are assumed
Sample: 2173
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-08-04 09:57:11
Modified: 2016-08-04 09:57:55
Abundance distribution
13 species
1 singleton
total count 2017
Fisher's α: 1.860
geometric series k: 0.5750
Hurlbert's PIE: 0.7204
Shannon's H: 1.5744
Good's u: 0.9995