HydroBASINS lev08 watershed · #1080622950
Bassin · #1080622950
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 3 administrative regions : Keita, Tahoua, Tchin-Tabarade
Sub-basin area
758,4km²
Upstream area
13 896,3km²
Discharge
0,45m³/s
Mean elev.
431m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de ravin675 km²
- Bassin · #1080621020665 km²
3 dept-equivalent regions (GADM L2)
- TahouaTahoua · Niger714.2 km²94.5% of basin
- KeitaTahoua · Niger33.8 km²4.5% of basin
- Tchin-TabaradeTahoua · Niger7.6 km²1.0% of basin
1 intersecting protected areas
La Mare de Tabalak
IUCN IbWetland of International Importance (Ramsar Site)
62.98 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
290 distinct species · 894 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 · #1080622950 : 15 espèces reliées par 13 interactions GloBI sur 2 types (connectance 8.5%, 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°
28,6°C
Annual rain
354mm
Moisture idx (CMI)
-0,83
Runoff
21mm/an
PET
2 105mm
AET
296mm
Mean slope
1,7°
Water table
372cm
Forest
0%
Crops
58%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)