HydroBASINS lev08 watershed · #1080983940
Bassin · #1080983940
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 5 administrative regions : Bibiani-Anhwiaso-Bekwai-, Sefwi-Akontombra, Sefwi-Wiawso, Wassa Amenfi Central, Wassa Amenfi West
Sub-basin area
644,7km²
Upstream area
644,8km²
Discharge
8,7m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 191.6 km²29.8% of basin
- 187.7 km²29.2% of basin
- 123.6 km²19.3% of basin
- 119.0 km²18.5% of basin
- 20.0 km²3.1% of basin
5 intersecting protected areas
Subuma
IUCN IVForest Reserve
199.41 km² overlap
Tano Suraw
IUCN VIForest Reserve
10.60 km² overlap
Totua Shelterbelt
IUCN IVForest Reserve
10.09 km² overlap
Afao Hills
IUCN VIForest Reserve
8.60 km² overlap
Tano Suraw Extension
IUCN IIIForest Reserve
6.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
89 distinct species · 248 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin · #1080983940 : 15 espèces reliées par 11 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,2°C
Annual rain
1 529mm
Moisture idx (CMI)
-0,05
Runoff
410mm/an
PET
1 603mm
AET
1 240mm
Mean slope
4,7°
Water table
202cm
Forest
37%
Crops
14%
Urban
4%
Protected
37%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)