HydroBASINS lev08 watershed · #1080991930
Bassin de Eyinja River
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 5 administrative regions : Ihiala, Nnewi South, Ogbaru, Oguta, Oru West
Sub-basin area
436,8km²
Upstream area
1 707,7km²
Discharge
72,66m³/s
Mean elev.
48m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080984230731 km²
- Bassin de Eze540 km²
5 dept-equivalent regions (GADM L2)
- 170.2 km²39.1% of basin
- 167.1 km²38.4% of basin
- 80.4 km²18.5% of basin
- 10.4 km²2.4% of basin
- 6.8 km²1.6% of basin
1 intersecting protected areas
Osomari
IUCN Not ReportedForest Reserve
117.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
256 distinct species · 359 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Eyinja River : 12 espèces reliées par 12 interactions GloBI sur 2 types (connectance 8.8%, filtre Serrano α=0.2). 5 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°
26,9°C
Annual rain
2 064mm
Moisture idx (CMI)
0,22
Runoff
1 396mm/an
PET
1 604mm
AET
1 178mm
Mean slope
0,7°
Water table
43cm
Forest
47%
Crops
65%
Urban
34%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)