HydroBASINS lev08 watershed · #1080913760
Bassin de Oṣun 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 : Egbedore, Ejigbo, Ogo Oluwa, Ola Oluwa, Surulere
Sub-basin area
293,6km²
Upstream area
293,9km²
Discharge
5,56m³/s
Mean elev.
341m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 130.8 km²44.7% of basin
- 79.4 km²27.2% of basin
- 54.9 km²18.8% of basin
- 27.0 km²9.2% of basin
- 0.3 km²0.1% of basin
1 intersecting protected areas
Ejigbo
IUCN Not ReportedForest Reserve
2.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
179 distinct species · 853 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Oṣun River : 25 espèces reliées par 30 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 4 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°
26,0°C
Annual rain
1 253mm
Moisture idx (CMI)
-0,26
Runoff
596mm/an
PET
1 703mm
AET
1 044mm
Mean slope
1,9°
Water table
109cm
Forest
7%
Crops
67%
Urban
13%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)