HydroBASINS lev08 watershed · #6080132160
Bassin de Río Ventuari
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 : Alto Orinoco, Atabapo, Manapiare
Sub-basin area
2 080,8km²
Upstream area
33 649,4km²
Discharge
1 728,64m³/s
Mean elev.
312m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Ventuari869 km²
- Bassin de Río Ventuari19 km²
3 dept-equivalent regions (GADM L2)
- 1218.0 km²58.8% of basin
- 821.9 km²39.7% of basin
- 31.8 km²1.5% of basin
4 intersecting protected areas
Macizo Parú - Euaja
IUCN IIINatural Monument (MN)
556.87 km² overlap
Alto Orinoco - Casiquiare
IUCN VIBiosphere Reserve (RB)
18.40 km² overlap
Alto Orinoco - Casiquiare
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
18.40 km² overlap
Natural Monument (MN)
12.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
178 distinct species · 247 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Ventuari : 7 espèces reliées par 15 interactions GloBI sur 1 type (connectance 16.5%, 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°
26,1°C
Annual rain
2 978mm
Moisture idx (CMI)
0,39
Runoff
1 820mm/an
PET
1 815mm
AET
1 547mm
Mean slope
6,4°
Water table
176cm
Forest
99%
Crops
0%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)