HydroBASINS lev08 watershed · #1080020730
Bassin · #1080020730
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 3 administrative regions : Bendjé, Komo-Mondah, Ogooué et des Lacs
Sub-basin area
798,2km²
Upstream area
798,3km²
Discharge
37,71m³/s
Mean elev.
112m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 577.6 km²72.7% of basin
- 216.6 km²27.3% of basin
- 0.5 km²0.1% of basin
2 intersecting protected areas
Reserve Présidentielle Wonga Wongué
IUCN Not ReportedPresidential reserve
794.58 km² overlap
Wonga-Wongué
IUCN IVWetland of International Importance (Ramsar Site)
760.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
175 distinct species · 578 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 · #1080020730 : 14 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 2 types (connectance 12.1%, 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°
25,5°C
Annual rain
2 262mm
Moisture idx (CMI)
0,39
Runoff
1 589mm/an
PET
1 389mm
AET
1 193mm
Mean slope
2,9°
Water table
142cm
Forest
90%
Crops
5%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)