HydroBASINS lev08 watershed · #1080725980
Bassin de Zamfara
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 : Aleiro, Birnin Kebbi, Jega, Kalgo, Maiyama
Sub-basin area
571,3km²
Upstream area
14 519,5km²
Discharge
57,46m³/s
Mean elev.
230m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Zamfara2447 km²
- Bassin de Zamfara916 km²
5 dept-equivalent regions (GADM L2)
- 195.0 km²34.3% of basin
- 126.5 km²22.2% of basin
- 108.3 km²19.0% of basin
- 90.9 km²16.0% of basin
- 48.3 km²8.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
118 distinct species · 423 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Zamfara : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 9 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°
28,3°C
Annual rain
835mm
Moisture idx (CMI)
-0,58
Runoff
99mm/an
PET
2 006mm
AET
705mm
Mean slope
0,7°
Water table
115cm
Forest
0%
Crops
35%
Urban
19%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)