HydroBASINS lev08 watershed · #1080745180
Bassin de Hadejia River
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 5 administrative regions : Gwarzo, Kabo, Karaye, Kiru, Shanono
Sub-basin area
490,8km²
Upstream area
4 262,2km²
Discharge
22,79m³/s
Mean elev.
539m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080748550599 km²
- Bassin · #1080748540435 km²
5 dept-equivalent regions (GADM L2)
- 223.1 km²45.6% of basin
- 171.1 km²35.0% of basin
- 64.1 km²13.1% of basin
- 30.4 km²6.2% of basin
- 0.2 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
93 distinct species · 305 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Hadejia River : 17 espèces reliées par 20 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2). 6 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°
25,7°C
Annual rain
862mm
Moisture idx (CMI)
-0,55
Runoff
151mm/an
PET
1 922mm
AET
728mm
Mean slope
0,7°
Water table
89cm
Forest
0%
Crops
47%
Urban
31%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)