HydroBASINS lev08 watershed · #1080981200
Bassin · #1080981200
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 17 administrative regions : Abi, Afikpo North, Afikpo South, Aninri, Awgu +12
Sub-basin area
2 909,3km²
Upstream area
2 909,3km²
Discharge
119,53m³/s
Mean elev.
84m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
17 dept-equivalent regions (GADM L2)
- 462.1 km²16.0% of basin
- 300.3 km²10.4% of basin
- 291.9 km²10.1% of basin
- 288.2 km²9.9% of basin
- 275.9 km²9.5% of basin
- 242.6 km²8.4% of basin
- Afikpo SouthEbonyi · Nigeria184.6 km²6.4% of basin
- 182.0 km²6.3% of basin
9 moreFull L2 list
- Awgu158.1 km² · 5.5%
- Isuikwuato156.7 km² · 5.4%
- Nkanu West151.4 km² · 5.2%
- Ohafia119.1 km² · 4.1%
- Afikpo North46.3 km² · 1.6%
- Ishielu29.8 km² · 1.0%
- Ezza South4.4 km² · 0.2%
- Abi3.4 km² · 0.1%
- Udi0.1 km² · 0.0%
1 intersecting protected areas
Akanto
IUCN Not ReportedForest Reserve
27.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
234 distinct species · 1 813 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 · #1080981200 : 25 espèces reliées par 24 interactions GloBI sur 3 types (connectance 5.9%, 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°
27,0°C
Annual rain
1 944mm
Moisture idx (CMI)
0,17
Runoff
1 295mm/an
PET
1 620mm
AET
1 170mm
Mean slope
1,5°
Water table
61cm
Forest
17%
Crops
47%
Urban
18%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)