HydroBASINS lev08 watershed · #1080942950
Bassin de River Edion
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 4 administrative regions : Akoko-Edo, Etsako East, Etsako West, Owan East
Sub-basin area
669,4km²
Upstream area
669,4km²
Discharge
17,32m³/s
Mean elev.
220m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 269.8 km²40.5% of basin
- 240.4 km²36.1% of basin
- 99.8 km²15.0% of basin
- 56.6 km²8.5% of basin
2 intersecting protected areas
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
120 distinct species · 432 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 River Edion : 20 espèces reliées par 21 interactions GloBI sur 3 types (connectance 8.3%, 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°
25,8°C
Annual rain
1 363mm
Moisture idx (CMI)
-0,18
Runoff
816mm/an
PET
1 661mm
AET
1 065mm
Mean slope
3,5°
Water table
218cm
Forest
85%
Crops
80%
Urban
14%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)