HydroBASINS lev08 watershed · #1080026800
Bassin de Gambia River
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 : Bounkiling, Central Baddibu, Kiang Central, Kiang West, Lower Baddibu
Sub-basin area
515,1km²
Upstream area
72 617km²
Discharge
143,1m³/s
Mean elev.
18m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Gambia River1375 km²
- Bassin de Grand Bao Bôlon355 km²
5 dept-equivalent regions (GADM L2)
- 256.9 km²50.1% of basin
- 61.3 km²12.0% of basin
- 47.1 km²9.2% of basin
- BounkilingSédhiou · Senegal28.7 km²5.6% of basin
- 20.3 km²4.0% of basin
4 intersecting protected areas
Kiang West
IUCN IINational Park
203.41 km² overlap
Baobolong
IUCN VIWetland Reserve
63.37 km² overlap
Baobolon Wetland Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
39.87 km² overlap
Jokadu
IUCN IINational Park
21.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
567 distinct species · 21 640 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Gambia River : 20 espèces reliées par 16 interactions GloBI sur 3 types (connectance 7.6%, 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°
27,3°C
Annual rain
832mm
Moisture idx (CMI)
-0,58
Runoff
97mm/an
PET
2 002mm
AET
695mm
Mean slope
0,4°
Water table
63cm
Forest
21%
Crops
24%
Urban
0%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)