Ketumbeine Forest Reserve
Basic information
Sample name: Ketumbeine Forest Reserve

Reference: N. Sitati, N. Gichohi, P. Lenaiyasa, M. Maina, F. Warinwa, P. Muruthi, D. Sumba, and J. Mandima. 2016. Tree species diversity and dominance in Ketumbeine Forest Reserve, Tanzania. Journal of Biodiversity Management & Forestry 5(3):1-5 [ER 2207]
Country: Tanzania

Coordinate: 2° 50' S, 36° 15' E
Basis of coordinate: stated in text
Geography comments: "covers about 12, 991 ha of isolated peak of Ketumbeine Hill"
Habitat: tropical/subtropical savanna
Protection: forest reserve
Substrate: ground surface
Disturbance: agriculture
WMT: 30.0
CMT: 10.0
MAP: 625.0
Habitat comments: "the forest is threatened by human activities including farming and settlement... The vegetation at lower slopes (1, 370–1, 670 m) is dry woodland and at upper slopes (>1, 700 m) is a dry montane forest" (stem density strongly suggests this is mostly dry woodland)
temperatures range "lower than 10°C in during the months of June and August and 30°C... The wet (October-December and March–June) and dry (January and February and July to October) seasons are quite distinct"
MAP 500 to 750 mm
Life forms: trees
Sites: 77
Site area: 5.467
Sampling methods: quadrat
Sample size: 433
Minimum size: 5.0cm dbh
Basal area: 12.0354 per ha
Sampling comments: "Forest inventory surveys were undertaken in the nine randomly placed transects and 77 vegetation plots each measuring 0.071 ha located"
the authors made a catastrophic error in computing basal area, reported as 926.724 m2/ha; the stem total per ha figure is also off, reported as 6126.761 when the authors apparently mean 435/(77 x 0.071) = 79.56832; they certainly computed 435/0.071 = 6126.761 and so the correct basal area figure is presumably 926.724/77 = 12.03538, concordant with the low stem density
there are numerous typos in the species list, which has been corrected without comment
Sample: 2242
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-08-28 20:36:52
Modified: 2016-08-28 21:13:27
Abundance distribution
26 species
3 singletons
total count 433
extrapolated richness: 31.6
Fisher's α: 6.074
geometric series k: 0.8161
Hurlbert's PIE: 0.8204
Shannon's H: 2.2921
Good's u: 0.9931
Each square represents a species. Square sizes are proportional to counts.