Basic information
Sample name: Crossman

Reference: E. K. Stivers, J. T. Wittman, and K. J. Larsen. 2019. A comparison of adult butterfly communities on remnant and planted prairies in northeast Iowa. Journal of the Lepidopterists' Society 73(4):268-274 [ER 3262]
Country: United States
State: Iowa

Coordinate: 43° 24' 29" N, 92° 28' 29" W
Basis of coordinate: stated in text
Geography comments: coordinate is in western Howard County
on land owned by the Iowa Nature Conservancy
probably the same as the Crossman Prairie Preserve, which is operated by the Nature Conservancy
Climate and habitat
Habitat: temperate savanna
Protection: nature reserve
Substrate: ground surface
Habitat comments: a remnant "tallgrass" prairie
Life forms: butterflies
Site length: 925.000
Site width: 10.000
Sampling methods: line transect, other nets, visual
Sample size: 246
Years: 2015
Seasons: summer
Sampling comments: "Butterfly surveys were conducted at each prairie site approximately every three weeks throughout the summer of 2015... A modified Pollard walk technique was used walking at a slow steady pace following a meandering transect established within each site... All butterflies observed within 10 m of the observers were recorded... Butterflies not identified in flight were netted for closer examination and released in the field if possible"
transect length 925 m
Sample: 3605
Contributor: John Alroy
Enterer: John Alroy
Created: 2020-04-25 14:45:45
Modified: 2020-04-25 14:45:45
Abundance distribution
25 species
10 singletons
total count 246
extrapolated richness: 43.8
Fisher's α: 6.957
geometric series k: 0.8503
Hurlbert's PIE: 0.8969
Shannon's H: 2.5835
Good's u: 0.9593
Each square represents a species. Square sizes are proportional to counts.