Uppland (organic farm 1)
Basic information
Sample name: Uppland (organic farm 1)

Reference: A.-C. Weibull, J. Bengtsson, and E. Nohlgren. 2000. Diversity of butterflies in the agricultural landscape: the role of farming system and landscape heterogeneity. Ecography 23(6):743-750 [ER 826]
Country: Sweden
State: Uppland

Coordinate: 60° 0' N, 18° 0' E
Basis of coordinate: based on political unit
Geography comments: coordinate based on Uppland
Climate and habitat
Habitat: temperate broadleaf/mixed forest
Altered habitat: cropland
Substrate: ground surface
MAT: 5.5
MAP: 527.0
Habitat comments: climate data are for Uppland in general and are based on Aronsson et al. (2014)
Life forms: butterflies
Sites: 1
Sampling methods: belt transect, visual
Sample size: 521
Years: 1997, 1998
Days: 11
Sampling comments: "line transect method" based on Pollard (i.e., with butterflies recorded up to 5 m on either side of the transect)
counts were during on 11 separate visits (assumed to be one day long each)
Sample: 1175
Contributor: John Alroy
Enterer: John Alroy
Created: 2014-09-30 14:44:21
Modified: 2016-12-11 17:50:34
Abundance distribution
23 species
5 singletons
total count 521
standardised richness: not computable
Fisher's α: 4.924
geometric series k: 0.7821
Hurlbert's PIE: 0.7590
Shannon's H: 1.9417
Good's u: 0.9904