HydroBASINS lev08 watershed · #1081091900
Bassin de Ndoki
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 : Nola, Ouesso
Sub-basin area
757,9km²
Upstream area
1 768km²
Discharge
15,96m³/s
Mean elev.
411m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1081086420587 km²
- Bassin · #1081086430424 km²
2 dept-equivalent regions (GADM L2)
- 481.8 km²63.9% of basin
- 272.8 km²36.1% of basin
5 intersecting protected areas
Sangha Trinational
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
496.23 km² overlap
Sangha-Nouabalé-Ndoki
IUCN Not ReportedWetland of International Importance (Ramsar Site)
485.06 km² overlap
National Park
278.47 km² overlap
Dzanga-Ndoki
IUCN IINational Park
240.49 km² overlap
Dzanga-Sangha
IUCN VISpecial Reserve
22.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
608 distinct species · 1 642 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Ndoki : 27 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 5.1%, filtre Serrano α=0.2). 3 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°
24,7°C
Annual rain
1 659mm
Moisture idx (CMI)
-0,03
Runoff
283mm/an
PET
1 703mm
AET
1 342mm
Mean slope
1,4°
Water table
124cm
Forest
100%
Crops
0%
Urban
0%
Protected
72%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)