Lake Chala
Basic information
Sample name: Lake Chala

Reference: J. Kuppler, J. Fricke, C. Hemp, I. Steffan-Dewenter, and M. K. Peters. 2015. Conversion of savannah habitats to small-scale agriculture affects grasshopper communities at Mt. Kilimanjaro, Tanzania. Journal of Insect Conservation 19:509-518 [ER 2148]
Country: Tanzania

Coordinate: 3° 5' 0" S, 37° 21' 30" E
Basis of coordinate: stated in text as range
Geography comments: "in the colline savannah zone at Lake Chala and the surrounding agricultural land... on the eastern slopes of Mount Kilimanjaro, Tanzania"
elevation 940to 1163 m
Climate and habitat
Habitat: tropical/subtropical savanna
Substrate: ground surface
Disturbance: agriculture
MAT: 24.1
MAP: 600.0
Habitat comments: there is "a long rainy season from March to May and a short rainy season in November and December"
Life forms: orthopterans
Sites: 9
Site area: 0.225
Sampling methods: line transect, sweep nets, visual
Sample size: 1398
Years: 2010
Days: 144
Sampling comments: "In total, nine plots (three per land use type) were selected to ensure that the heterogeneity of each land use type (natural savannah, ruderal area and corn fields) was well represented. Each plot had an area of 250 m2... Grasshoppers were sampled in six surveys using standardized transect walk methodology between 04th September and 04th December 2010. Each survey was 24 days long and each plot was sampled once within each survey" (approximate effort 9 plots x 6 surveys x 3 days); "Each plot was covered by twelve parallel transects, each being 50 m long and 4 m wide. The transects were paced slowly for 1 hour and adult grasshoppers spotted sitting on herbage and on the ground were collected with sweep nets or by hand and killed with cyanide. Large species with good flying abilities were mostly counted by sight"
Sample: 2140
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-07-24 19:45:27
Modified: 2016-07-24 19:45:27
Abundance distribution
40 species
12 singletons
total count 1398
standardised richness: not computable
Fisher's α: 7.678
geometric series k: 0.8595
Hurlbert's PIE: 0.8815
Shannon's H: 2.6350
Good's u: 0.9914