HydroBASINS lev08 watershed · #1080967710
Bassin de Birim river
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 4 administrative regions : Atiwa East, Atiwa West, Kwahu South, Kwahu West
Sub-basin area
312,2km²
Upstream area
312,5km²
Discharge
3,04m³/s
Mean elev.
246m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 200.8 km²64.6% of basin
- 90.2 km²29.0% of basin
- 13.1 km²4.2% of basin
- 6.8 km²2.2% of basin
4 intersecting protected areas
Southern Scarp (Kwahu)
IUCN IVForest Reserve
26.57 km² overlap
Esukawkaw
IUCN IIIForest Reserve
15.32 km² overlap
Kade Bepo
IUCN VIForest Reserve
10.87 km² overlap
Nkwanda
IUCN VIForest Reserve
7.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
185 distinct species · 468 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 de Birim river : 18 espèces reliées par 11 interactions GloBI sur 4 types (connectance 6.4%, 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°
25,4°C
Annual rain
1 600mm
Moisture idx (CMI)
-0,04
Runoff
301mm/an
PET
1 661mm
AET
1 298mm
Mean slope
4,1°
Water table
174cm
Forest
5%
Crops
13%
Urban
5%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)