HydroBASINS lev08 watershed · #1081166040
Bassin de Oso
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 : Masisi, Rutshuru, Walikale
Sub-basin area
1 061km²
Upstream area
1 061km²
Discharge
19,61m³/s
Mean elev.
1 801m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 610.9 km²57.8% of basin
- 304.7 km²28.8% of basin
- 140.7 km²13.3% of basin
3 intersecting protected areas
Virunga National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
181.22 km² overlap
Parc national des Virunga
IUCN Not ReportedWetland of International Importance (Ramsar Site)
181.22 km² overlap
Virunga
IUCN IINational Park
181.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
580 distinct species · 1 484 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Oso : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 21 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 3 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°
17,9°C
Annual rain
1 615mm
Moisture idx (CMI)
0,09
Runoff
587mm/an
PET
1 470mm
AET
1 311mm
Mean slope
10,8°
Water table
456cm
Forest
40%
Crops
4%
Urban
3%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)