HydroBASINS lev08 watershed · #1081132720
Bassin de Semliki
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 : Beni, Oicha
Sub-basin area
553,8km²
Upstream area
29 327,2km²
Discharge
218,37m³/s
Mean elev.
1 112m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Semliki340 km²
- Bassin de Semliki185 km²
2 dept-equivalent regions (GADM L2)
- 471.1 km²85.4% of basin
- 80.2 km²14.6% of basin
3 intersecting protected areas
Virunga
IUCN IINational Park
322.40 km² overlap
Virunga National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
322.08 km² overlap
Parc national des Virunga
IUCN Not ReportedWetland of International Importance (Ramsar Site)
322.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
215 distinct species · 460 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 Semliki : 16 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 4 types (connectance 8.4%, filtre Serrano α=0.2). 4 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°
22,8°C
Annual rain
1 372mm
Moisture idx (CMI)
-0,19
Runoff
264mm/an
PET
1 704mm
AET
1 161mm
Mean slope
6,2°
Water table
382cm
Forest
19%
Crops
3%
Urban
0%
Protected
59%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)