HydroBASINS lev08 watershed · #1080932130
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 4 administrative regions : Ajaokuta, Etsako East, Igalamela-Odolu, Ofu
Sub-basin area
339km²
Upstream area
2 073 105,5km²
Discharge
5 812,24m³/s
Mean elev.
107m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Niger437 km²
- Bassin du Niger72 km²
4 dept-equivalent regions (GADM L2)
- 203.8 km²60.4% of basin
- 132.5 km²39.3% of basin
- 1.2 km²0.3% of basin
- Igalamela-OdoluKogi · Nigeria0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
106 distinct species · 391 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 du Niger : 8 espèces reliées par 9 interactions GloBI sur 2 types (connectance 16.4%, 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°
26,9°C
Annual rain
1 263mm
Moisture idx (CMI)
-0,26
Runoff
621mm/an
PET
1 717mm
AET
1 018mm
Mean slope
3,2°
Water table
183cm
Forest
73%
Crops
72%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)