HydroBASINS lev08 watershed · #1080680870
Bassin de Sandougou
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 : Koupentoum, Sami, Sandu, Tambacounda
Sub-basin area
789km²
Upstream area
11 904,2km²
Discharge
25,8m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sandougou532 km²
- Bassin de Sandougou365 km²
4 dept-equivalent regions (GADM L2)
- TambacoundaTambacounda · Senegal592.5 km²75.4% of basin
- 99.5 km²12.7% of basin
- 86.2 km²11.0% of basin
- KoupentoumTambacounda · Senegal7.9 km²1.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
55 distinct species · 140 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 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 Sandougou : 11 espèces reliées par 7 interactions GloBI sur 2 types (connectance 12.7%, 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°
27,3°C
Annual rain
749mm
Moisture idx (CMI)
-0,63
Runoff
52mm/an
PET
2 036mm
AET
631mm
Mean slope
0,5°
Water table
102cm
Forest
0%
Crops
11%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)