HydroBASINS lev08 watershed · #1080706710
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 2 administrative regions : Kédougou, Salémata
Sub-basin area
438,5km²
Upstream area
14 871,6km²
Discharge
126,79m³/s
Mean elev.
75m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Toumbou hoto112 km²
- Bassin de Gambie20 km²
2 dept-equivalent regions (GADM L2)
- 263.5 km²60.3% of basin
- 173.3 km²39.7% of basin
3 intersecting protected areas
National Park
262.14 km² overlap
Niokolo-Koba National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
258.08 km² overlap
Parc national du Niokolo-Koba
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
258.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
127 distinct species · 211 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 3 types (connectance 4.4%, filtre Serrano α=0.2). 3 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°
28,1°C
Annual rain
1 080mm
Moisture idx (CMI)
-0,46
Runoff
129mm/an
PET
1 993mm
AET
830mm
Mean slope
1,3°
Water table
146cm
Forest
47%
Crops
1%
Urban
0%
Protected
59%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)