Wenchi
Basic information
Sample name: Wenchi
Sample aka: Brong-Ahafo
Reference: E. M. Attua and O. Pabi. 2013. Tree species composition, richness and diversity in the northern forest-savanna ecotone of Ghana. Journal of Applied Biosciences 69:5437-5448 [ER 1109]
Geography
Country: Ghana
Coordinate: 8° 47' N, 2° 15' W
Latlng basis: estimated from map
Geography comments: "approximately central to the Brong-Ahafo region of Ghana, between latitudes 7º22' - 8º0'N and longitudes 1º32'- 2º25'W"
Fig. 1 shows that the study area is actually within about 7º38' - 7º56' N and 1º55' - 2º35' W, centered slightly to the west of Wenchi
altitude is for Wenchi and is from Lacombe et al. (2012, Hydrological Sciences Journal)
Fig. 1 shows that the study area is actually within about 7º38' - 7º56' N and 1º55' - 2º35' W, centered slightly to the west of Wenchi
altitude is for Wenchi and is from Lacombe et al. (2012, Hydrological Sciences Journal)
Environment
Habitat: tropical/subtropical savanna
Substrate: ground surface
MAT: 23.9
MAP: 1200.0
Habitat comments: "savanna woodland interspersed with high forest mosaics and gallery forests along banks of streams and rivers" and sites were distributed across "near-forest ecotone... near-savannah ecotone" and "mid-ecotone"
there is significant disturbance of forests in the area but it is not clear if the transects per se are disturbed
MAP 1000 to 1400 mm
there is significant disturbance of forests in the area but it is not clear if the transects per se are disturbed
MAP 1000 to 1400 mm
Methods
Life forms: trees
Sites: 9
Site area: 10.29
Sampling methods: line transect
Sample size: 1450 individuals
Years: 2010, 2011
Net or trap nights: 0
Size min: 10.0
Basal area status: not stated
Sampling comments: "In each site, the plotless sampling technique was applied along three transects laid at least 1km apart"
tree density per ha was estimated using an equation that is base on "the mean distance between trees" along a transect; density figures for the three sites imply effective areas of 2.70, 4.09, and 3.5 ha
tree density per ha was estimated using an equation that is base on "the mean distance between trees" along a transect; density figures for the three sites imply effective areas of 2.70, 4.09, and 3.5 ha
Metadata
Sample no: 1625
Contributor no: John Alroy
Enterer: John Alroy
Created: 2015-06-11 21:05:27
Modified: 2017-11-09 04:35:48
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
87 species
0 singleton
total count 1450
geometric series index: 97.7
Fisher's α: 20.319
geometric series k: 0.9624
Hurlbert's PIE: 0.982
Shannon's H: 4.2111
Good's u: 1
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