HydroBASINS lev08 watershed · #1080021510
Bassin de Ndonga
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 1 administrative regions : Sanaga Maritime
Sub-basin area
1 114,9km²
Upstream area
1 114,9km²
Discharge
19,51m³/s
Mean elev.
25m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1076.3 km²97.0% of basin
1 intersecting protected areas
Douala Edéa
IUCN IINational Park
586.92 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
350 distinct species · 662 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Ndonga : 18 espèces reliées par 17 interactions GloBI sur 3 types (connectance 8.9%, 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°
26,1°C
Annual rain
3 096mm
Moisture idx (CMI)
0,53
Runoff
1 863mm/an
PET
1 442mm
AET
1 253mm
Mean slope
1,5°
Water table
37cm
Forest
96%
Crops
3%
Urban
1%
Protected
49%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)