HydroBASINS lev08 watershed · #1080651730
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 2 administrative regions : Tillabéry, Téra
Sub-basin area
792,5km²
Upstream area
613 303,4km²
Discharge
789,74m³/s
Mean elev.
230m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Niger413 km²
- Bassin du Niger9 km²
2 dept-equivalent regions (GADM L2)
- 429.7 km²54.4% of basin
- 359.8 km²45.6% of basin
1 intersecting protected areas
Kandadji
IUCN IVNature Reserve
789.57 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
121 distinct species · 1 155 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 4 types (connectance 6.6%, filtre Serrano α=0.2). 10 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°
29,3°C
Annual rain
323mm
Moisture idx (CMI)
-0,85
Runoff
12mm/an
PET
2 120mm
AET
269mm
Mean slope
0,4°
Water table
127cm
Forest
0%
Crops
62%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)