HydroBASINS lev08 watershed · #1080021580
Bassin de Crique Olga
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 2 administrative regions : Sanaga Maritime, Wouri
Sub-basin area
181,5km²
Upstream area
181,5km²
Discharge
0,12m³/s
Mean elev.
14m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 175.7 km²97.2% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Douala Edéa
IUCN IINational Park
107.52 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
418 distinct species · 4 385 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Crique Olga : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 3 types (connectance 4.6%, filtre Serrano α=0.2). 7 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°
26,2°C
Annual rain
3 589mm
Moisture idx (CMI)
0,59
Runoff
1 964mm/an
PET
1 455mm
AET
1 268mm
Mean slope
1,1°
Water table
30cm
Forest
66%
Crops
5%
Urban
50%
Protected
49%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)