HydroBASINS lev08 watershed · #1080711060
Bassin de Koulountou
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 across 2 countries : Koundara, Tambacounda, Vélingara
Sub-basin area
553,5km²
Upstream area
4 616,2km²
Discharge
35,92m³/s
Mean elev.
86m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mityi1210 km²
- Bassin de Koulountou674 km²
3 dept-equivalent regions (GADM L2)
- 420.4 km²76.2% of basin
- TambacoundaTambacounda · Senegal99.6 km²18.1% of basin
- 31.4 km²5.7% of basin
6 intersecting protected areas
Gambie-Koulountou
IUCN Not ReportedWetland of International Importance (Ramsar Site)
414.04 km² overlap
National Park
137.62 km² overlap
Niokolo-Koba National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
111.55 km² overlap
Parc national du Niokolo-Koba
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
111.55 km² overlap
Badiar
IUCN IINational Park
105.34 km² overlap
Badiar-sud
IUCN Not ReportedClassified Forest
43.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
120 distinct species · 506 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Koulountou : 34 espèces reliées par 31 interactions GloBI sur 3 types (connectance 4.7%, 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°
27,4°C
Annual rain
1 240mm
Moisture idx (CMI)
-0,37
Runoff
207mm/an
PET
1 968mm
AET
877mm
Mean slope
1,4°
Water table
146cm
Forest
30%
Crops
2%
Urban
2%
Protected
47%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)