Stavely
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]
Geography
Country: Canada
State: Alberta
Coordinate: 50° 10' N, 113° 39' W
Coordinate basis: based on nearby landmark
Geography comments: "80 km northwest of Lethbridge" (coordinate based on Stavely)
Environment
Habitat: temperate savanna
Substrate: ground surface
Habitat comments: "fescue prairie in the Black soil zone"
Methods
Life forms: orthopterans
Sampling methods: no design,sweep nets
Sample size: 2017 individuals
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
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
Metadata
Sample number: 2173
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-08-04 09:57:11
Modified: 2016-08-03 23:57:55
Abundance distribution
13 species
1 singleton
total count 2017
geometric series index: 15.7
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
Each square represents a species. Square sizes are proportional to counts.
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