HydroBASINS lev08 watershed · #1080679400
Bassin de Gambie
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 : Kantora, Tambacounda, Vélingara, Wuli
Sub-basin area
302,7km²
Upstream area
42 338,3km²
Discharge
181,7m³/s
Mean elev.
34m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Niaoulé1404 km²
- Bassin de Gambie540 km²
4 dept-equivalent regions (GADM L2)
- TambacoundaTambacounda · Senegal207.4 km²68.8% of basin
- 67.2 km²22.3% of basin
- 25.6 km²8.5% of basin
- 1.3 km²0.4% of basin
1 intersecting protected areas
Foret de Gouloumbou
IUCN Not ReportedForest Reserve
145.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
107 distinct species · 155 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 Gambie : 9 espèces reliées par 11 interactions GloBI sur 3 types (connectance 14.1%, filtre Serrano α=0.2). 4 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°
27,7°C
Annual rain
853mm
Moisture idx (CMI)
-0,58
Runoff
77mm/an
PET
2 016mm
AET
720mm
Mean slope
0,7°
Water table
94cm
Forest
0%
Crops
12%
Urban
0%
Protected
48%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)