HydroBASINS lev08 watershed · #1080722240
Bassin de Ruisseau
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 2 administrative regions across 2 countries : Say, Tapoa
Sub-basin area
932km²
Upstream area
932,1km²
Discharge
1,78m³/s
Mean elev.
275m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 616.8 km²66.4% of basin
- SayTillabéry · Niger311.6 km²33.6% of basin
8 intersecting protected areas
W-Arly-Pendjari Complex
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
684.71 km² overlap
W Parks Regional Complex
IUCN IIRegional Park
683.79 km² overlap
Parc National du W
IUCN IIWetland of International Importance (Ramsar Site)
427.27 km² overlap
W du Burkina Faso
IUCN IINational Park
334.00 km² overlap
W Region
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
319.95 km² overlap
National Park
305.29 km² overlap
Parc national du W
IUCN IaWetland of International Importance (Ramsar Site)
181.22 km² overlap
Tapoa-Djerma
IUCN Not ReportedGame Reserve
93.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
228 distinct species · 714 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Ruisseau : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 3 bulles famille, 23 interactions GloBI documentées sur 2 types (connectance 12.1%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
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
745mm
Moisture idx (CMI)
-0,63
Runoff
60mm/an
PET
2 029mm
AET
629mm
Mean slope
0,4°
Water table
125cm
Forest
0%
Crops
19%
Urban
0%
Protected
74%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)