Omo Forest Reserve Control Plot
Basic information
Sample name: Omo Forest Reserve Control Plot

Reference: D. U. U. Okali and B. A. Ola-Adams. 1987. Tree population changes in treated rain forest at Omo Forest Reserve, south-western Nigeria. Journal of Tropical Ecology 3(4):291-313 [ER 10]
Country: Nigeria

Coordinate: 6° 50' 0" N, 4° 29' 30" E
Basis of coordinate: stated in text
Geography comments: shown as a few km NNW of Akilla on map
Habitat: tropical/subtropical moist broadleaf forest
Protection: forest reserve
Substrate: ground surface
MAT: 25.8
MAP: 1577.0
Dry months: 3
Habitat comments: "mixed moist semi-evergreen rain forest"
precip < 40 mm/mo in December, January, and February (warm months)
Life forms: trees
Sites: 3
Site area: 0.750
Sampling methods: quadrat
Sample size: 421
Years: 1981
Minimum size: 10.0cm dbh
Basal area: 29.6000 per ha
Sampling comments: three 50 x 50 m quadrats
1981 data only (see p. 312)
Sample: 46
Contributor: John Alroy
Enterer: John Alroy
Created: 2013-01-25 17:07:42
Modified: 2014-07-17 15:30:11
Abundance distribution
60 species
22 singletons
total count 421
extrapolated richness: 105.0
Fisher's α: 19.135
geometric series k: 0.9327
Hurlbert's PIE: 0.9281
Shannon's H: 3.1500
Good's u: 0.9479
Each square represents a species. Square sizes are proportional to counts.