HydroBASINS lev08 watershed · #1081171180
Bassin de Alima
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 : Abala, Gamboma, Owando
Sub-basin area
1 957,2km²
Upstream area
1 957,2km²
Discharge
35,25m³/s
Mean elev.
398m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1532.7 km²78.7% of basin
- 413.9 km²21.2% of basin
- 1.9 km²0.1% of basin
1 intersecting protected areas
Tchicapika-Owando
IUCN VIWetland of International Importance (Ramsar Site)
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
47 distinct species · 100 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 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 Alima : 2 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, 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°
25,1°C
Annual rain
1 789mm
Moisture idx (CMI)
0,08
Runoff
568mm/an
PET
1 638mm
AET
1 442mm
Mean slope
2,8°
Water table
119cm
Forest
76%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)