HydroBASINS lev08 watershed · #1080989420
Bassin de Ouaka
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 1 administrative regions : Bambari
Sub-basin area
29,7km²
Upstream area
30 052,7km²
Discharge
258,7m³/s
Mean elev.
457m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mbounou589 km²
- Bassin de Ouaka3 km²
1 dept-equivalent regions (GADM L2)
- 29.6 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
113 distinct species · 189 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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 Ouaka : 7 espèces reliées par 9 interactions GloBI sur 1 type (connectance 16.4%, filtre Serrano α=0.2). 4 bulles taxonomiques (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 471mm
Moisture idx (CMI)
-0,23
Runoff
275mm/an
PET
1 906mm
AET
1 171mm
Mean slope
2,5°
Water table
217cm
Forest
99%
Crops
8%
Urban
26%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)