HydroBASINS lev08 watershed · #1080021910
Bassin de Cross
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 10 administrative regions : Calabar South, Ibesikpo Asutan, Nsit Atai, Odukpani, Okobo +5
Sub-basin area
597,9km²
Upstream area
52 698,7km²
Discharge
2 466,77m³/s
Mean elev.
29m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Cross480 km²
- Bassin de Isong Inyurig474 km²
10 dept-equivalent regions (GADM L2)
- 178.6 km²30.0% of basin
- 148.6 km²25.0% of basin
- 105.5 km²17.7% of basin
- 63.8 km²10.7% of basin
- 41.3 km²6.9% of basin
- 29.9 km²5.0% of basin
- 13.8 km²2.3% of basin
- 7.5 km²1.3% of basin
2 moreFull L2 list
- Ibesikpo Asutan5.0 km² · 0.8%
- Nsit Atai1.2 km² · 0.2%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 216 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 Cross : 11 espèces reliées par 16 interactions GloBI sur 3 types (connectance 15.2%, 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°
26,5°C
Annual rain
2 793mm
Moisture idx (CMI)
0,44
Runoff
1 821mm/an
PET
1 558mm
AET
1 350mm
Mean slope
0,8°
Water table
25cm
Forest
36%
Crops
37%
Urban
33%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)