HydroBASINS lev08 watershed · #1080620850
Bassin de ravin
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
675,2km²
Upstream area
12 472,5km²
Discharge
0m³/s
Mean elev.
449m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080614970877 km²
- Bassin · #1080614880764 km²
3 dept-equivalent regions (GADM L2)
- Tchin-TabaradeTahoua · Niger562.2 km²83.6% of basin
- KeitaTahoua · Niger89.9 km²13.4% of basin
- TahouaTahoua · Niger20.6 km²3.1% of basin
1 intersecting protected areas
La Mare de Tabalak
IUCN IbWetland of International Importance (Ramsar Site)
360.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
175 distinct species · 1 096 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 ravin : 6 espèces reliées par 5 interactions GloBI sur 2 types (connectance 17.9%, filtre Serrano α=0.2). 2 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°
28,5°C
Annual rain
322mm
Moisture idx (CMI)
-0,85
Runoff
23mm/an
PET
2 104mm
AET
269mm
Mean slope
1,6°
Water table
364cm
Forest
0%
Crops
76%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)