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

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]
Geography
Country: Nigeria



Coordinate: 6° 50' 0" N, 4° 29' 30" E
Coordinate basis: stated in text

Geography comments: shown as a few km NNW of Akilla on map

Environment
Habitat: tropical/subtropical moist broadleaf forest

Protection: forest reserve

Substrate: ground surface

Disturbance: selective logging

MAT: 25.8

MAP: 1577.0

Dry months: 3

Habitat comments: "mixed moist semi-evergreen rain forest" that was selectively logged in 1952
precip < 40 mm/mo in December, January, and February (warm months)

Methods
Life forms: trees

Sites: 3

Site area: 0.75

Sampling methods: quadrat

Sample size: 2282 individuals

Years: 1952

Size min: 10

Basal area: 25.9

Sampling comments: three 50 x 50 m quadrats
1981 data only (see p. 312)

Metadata
Sample number: 44

Contributor: John Alroy

Enterer: John Alroy

Created: 2013-01-25 17:00:11

Modified: 2014-07-17 05:31:43

Abundance distribution
51 species
11 singletons
total count 2282
geometric series index: 77.8
Fisher's α: 9.253
geometric series k: 0.8768
Hurlbert's PIE: 0.8483
Shannon's H: 2.4604
Good's u: 0.9952
Each square represents a species. Square sizes are proportional to counts.
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