HydroBASINS lev08 watershed · #1080020290
Bassin de Ngongo
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 5 administrative regions across 2 countries : Basse Banio, Haute-Banio, Kakamoeka, Madingo-Kayes, Mougoutsi
Sub-basin area
2 074,8km²
Upstream area
2 074,8km²
Discharge
58,31m³/s
Mean elev.
152m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 1964.3 km²95.1% of basin
- 34.8 km²1.7% of basin
- 28.6 km²1.4% of basin
- 26.8 km²1.3% of basin
- 11.1 km²0.5% of basin
2 intersecting protected areas
Conkouati-Douli
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2046.32 km² overlap
National Park
2040.67 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
459 distinct species · 1 644 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 Ngongo : 17 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 2 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°
25,0°C
Annual rain
1 424mm
Moisture idx (CMI)
-0,05
Runoff
874mm/an
PET
1 502mm
AET
1 119mm
Mean slope
5,3°
Water table
226cm
Forest
96%
Crops
3%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)