HydroBASINS lev08 watershed · #6080095920
Bassin de Río Cuyuní
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 : El Callao, Roscio, Sifontes
Sub-basin area
635km²
Upstream area
4 842,2km²
Discharge
159,49m³/s
Mean elev.
162m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Chicanán1775 km²
- Bassin de Río Cuyuní116 km²
3 dept-equivalent regions (GADM L2)
- 491.3 km²77.7% of basin
- 130.6 km²20.7% of basin
- 10.4 km²1.6% of basin
3 intersecting protected areas
Imataca
IUCN VIForest Reserve (RF)
632.26 km² overlap
El Dorado - Tumeremo
IUCN VIForest Reserve (RF)
22.66 km² overlap
San Pedro
IUCN VIForest Reserve (RF)
5.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
477 distinct species · 3 013 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Río Cuyuní : 12 espèces reliées par 14 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 5 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°
26,6°C
Annual rain
1 715mm
Moisture idx (CMI)
-0,01
Runoff
705mm/an
PET
1 736mm
AET
1 387mm
Mean slope
2,1°
Water table
76cm
Forest
100%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)