HydroBASINS lev08 watershed · #1080741380
Bassin de Alibori
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 across 2 countries : Gaya, Karimama, Malanville
Sub-basin area
649,1km²
Upstream area
13 974,6km²
Discharge
49,89m³/s
Mean elev.
196m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Pako1593 km²
- Bassin de Alibori1513 km²
3 dept-equivalent regions (GADM L2)
- 370.6 km²57.3% of basin
- 275.7 km²42.6% of basin
- GayaDosso · Niger0.2 km²0.0% of basin
5 intersecting protected areas
Site Ramsar du Complexe W
IUCN IIWetland of International Importance (Ramsar Site)
585.84 km² overlap
W (Benin)
IUCN IINational Park
95.02 km² overlap
W Parks Regional Complex
IUCN IIRegional Park
95.02 km² overlap
W-Arly-Pendjari Complex
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
94.71 km² overlap
Djona
IUCN VIHunting Zone
6.96 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
692 distinct species · 4 088 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Alibori : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 6 types (connectance 9.4%, 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°
28,8°C
Annual rain
794mm
Moisture idx (CMI)
-0,60
Runoff
83mm/an
PET
2 005mm
AET
670mm
Mean slope
0,4°
Water table
98cm
Forest
0%
Crops
19%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)