HydroBASINS lev08 watershed · #1080604190
Bassin du Niger
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 1 administrative regions : Ansongo
Sub-basin area
257,5km²
Upstream area
530 087,5km²
Discharge
798,29m³/s
Mean elev.
264m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Niger195 km²
- Bassin du Niger36 km²
1 dept-equivalent regions (GADM L2)
- AnsongoGao · Mali256.6 km²100.0% of basin
2 intersecting protected areas
Ansongo Giraffe Reserve
IUCN IVPartial Wildlife Reserve
80.28 km² overlap
Monzonga
IUCN IVClassified Forest
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
24 distinct species · 40 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 du Niger : 4 espèces reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, 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°
28,7°C
Annual rain
265mm
Moisture idx (CMI)
-0,87
Runoff
86mm/an
PET
2 055mm
AET
221mm
Mean slope
0,3°
Water table
134cm
Forest
0%
Crops
0%
Urban
4%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)