HydroBASINS lev08 watershed · #1081077440
Bassin de Motaba
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 across 2 countries : Dongou, Epéna, Nola, Ouesso
Sub-basin area
1 326,2km²
Upstream area
1 326,2km²
Discharge
12,28m³/s
Mean elev.
476m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1266.4 km²95.9% of basin
- 39.8 km²3.0% of basin
- 14.0 km²1.1% of basin
- 0.0 km²0.0% of basin
6 intersecting protected areas
Sangha Trinational
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1235.79 km² overlap
Sangha-Nouabalé-Ndoki
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1205.10 km² overlap
National Park
1200.45 km² overlap
Grands affluents
IUCN Not ReportedWetland of International Importance (Ramsar Site)
114.20 km² overlap
Dzanga-Ndoki
IUCN IINational Park
0.17 km² overlap
Dzanga-Sangha
IUCN VISpecial Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
36 distinct species · 46 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Motaba : 7 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,3°C
Annual rain
1 673mm
Moisture idx (CMI)
-0,02
Runoff
285mm/an
PET
1 699mm
AET
1 335mm
Mean slope
2,3°
Water table
226cm
Forest
100%
Crops
0%
Urban
0%
Protected
91%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)