HydroBASINS lev08 watershed · #1080022830
Bassin de Alajiko Creek
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 : Ethiope West, Sapele, Warri North, Warri South-West
Sub-basin area
494,4km²
Upstream area
494,6km²
Discharge
25,59m³/s
Mean elev.
9m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 231.5 km²47.0% of basin
- 141.1 km²28.7% of basin
- 112.5 km²22.8% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Ukpe-Sobo
IUCN Not ReportedForest Reserve
87.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
62 distinct species · 69 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 6 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 Alajiko Creek : 5 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 3 interactions GloBI sur 1 type (connectance 20.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
26,7°C
Annual rain
2 574mm
Moisture idx (CMI)
0,40
Runoff
1 601mm/an
PET
1 551mm
AET
1 244mm
Mean slope
0,6°
Water table
12cm
Forest
95%
Crops
21%
Urban
4%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)