HydroBASINS lev08 watershed · #1081041060
Bassin de Ouem
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 3 administrative regions : Mbam et Inoubou, Nkam, Sanaga Maritime
Sub-basin area
666,3km²
Upstream area
666,5km²
Discharge
24,78m³/s
Mean elev.
542m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 486.3 km²73.3% of basin
- 106.1 km²16.0% of basin
- 71.0 km²10.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
251 distinct species · 733 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Ouem : 13 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 9 interactions GloBI sur 1 type (connectance 11.5%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,4°C
Annual rain
2 523mm
Moisture idx (CMI)
0,40
Runoff
1 167mm/an
PET
1 506mm
AET
1 207mm
Mean slope
10,5°
Water table
325cm
Forest
100%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)