HydroBASINS lev08 watershed · #1081103490
Bassin de Ngoko
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 2 administrative regions across 2 countries : Boumba et Ngoko, Ouesso
Sub-basin area
651,5km²
Upstream area
74 854km²
Discharge
755,08m³/s
Mean elev.
393m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ngoko953 km²
- Bassin de Ngoko115 km²
2 dept-equivalent regions (GADM L2)
- 379.9 km²58.6% of basin
- 268.7 km²41.4% of basin
1 intersecting protected areas
Partie camerounaise du fleuve Sangha
IUCN Not ReportedWetland of International Importance (Ramsar Site)
9.56 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 137 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Ngoko : 17 espèces reliées par 14 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°
24,7°C
Annual rain
1 658mm
Moisture idx (CMI)
-0,02
Runoff
290mm/an
PET
1 693mm
AET
1 351mm
Mean slope
2,3°
Water table
121cm
Forest
100%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)