Rietondale Research Station
Basic information
Sample name: Rietondale Research Station
Reference: A. van den Berg and A. S. Dippenaar-Schoeman. 1991. Ground-living spiders from an area where the harvester termite Hodotermes mossambicus occurs in South Africa. Phytophylactica 23:247-254 [ER 2895]
Geography
Country: South Africa
State: Gauteng
Coordinate: 25° 14' S, 28° 15' E
Coordinate basis: stated in text
Geography comments: "6 km north-east of the center of Pretoria"
Environment
Habitat: tropical/subtropical savanna
Protection: unprotected
Substrate: ground surface
MAT: 18.1
MAP: 679.0
Habitat comments: "15 ha of flat grassland... The grass in the study area was cut once during 1986 and 1987 for winter fodder"
"a sub-tropical climate with wet summers, dry winters... average maximum and minimum temperatures were 25,1 ºC and 12,1 ºC in 1986; 24,4 ºC and 11,7 ºC in 1987 and 24,2 ºC and 11,4 º in 1988" (mean 18.15)
"a sub-tropical climate with wet summers, dry winters... average maximum and minimum temperatures were 25,1 ºC and 12,1 ºC in 1986; 24,4 ºC and 11,7 ºC in 1987 and 24,2 ºC and 11,4 º in 1988" (mean 18.15)
Methods
Life forms: spiders
Sites: 1
Site length: 50
Site width: 25
Sampling methods: quadrat,pitfall traps
Sample size: 1854 individuals
Years: 1986 - 1988
Days: 459
Nets or traps: 50
Sampling comments: "Spiders were collected in pit traps... Fifty traps were placed in a regular grid pattern in an area 50 m long by 25 m wide. The traps were emptied once per week" from "May to September 1986, 1987 and 1988" (i.e., 153 over days per year)
Metadata
Sample number: 3104
Contributor: John Alroy
Enterer: John Alroy
Created: 2018-09-18 19:28:54
Modified: 2018-09-18 09:28:54
Abundance distribution
47 species
5 singletons
total count 1854
extrapolated richness: 64.8
Fisher's α: 8.771
geometric series k: 0.8693
Hurlbert's PIE: 0.8307
Shannon's H: 2.4141
Good's u: 0.9973
Each square represents a species. Square sizes are proportional to counts.
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