HydroBASINS lev08 watershed · #1080022130
Bassin de New Calabar 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 7 administrative regions : Degema, Emuoha, Etche, Ikwerre, Obio/Akpor +2
Sub-basin area
970,6km²
Upstream area
970,6km²
Discharge
46,67m³/s
Mean elev.
29m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 532.7 km²55.1% of basin
- 192.5 km²19.9% of basin
- 132.6 km²13.7% of basin
- 67.8 km²7.0% of basin
- 13.7 km²1.4% of basin
- 12.4 km²1.3% of basin
- 5.2 km²0.5% of basin
2 intersecting protected areas
Otamiri River
IUCN Not ReportedForest Reserve
69.15 km² overlap
Sambrero
IUCN Not ReportedForest Reserve
61.29 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
410 distinct species · 1 528 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 New Calabar River : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 4.4%, filtre Serrano α=0.2). 2 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°
26,4°C
Annual rain
2 402mm
Moisture idx (CMI)
0,35
Runoff
1 518mm/an
PET
1 565mm
AET
1 260mm
Mean slope
0,3°
Water table
8cm
Forest
68%
Crops
40%
Urban
21%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)