HydroBASINS lev08 watershed · #6080088960
Bassin de Río Arauca
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 : Achaguas, Muñoz, Rómulo Gallegos
Sub-basin area
1 474,1km²
Upstream area
16 132,3km²
Discharge
625,06m³/s
Mean elev.
89m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Arauca395 km²
- Bassin de Río Arauca222 km²
3 dept-equivalent regions (GADM L2)
- 1188.3 km²81.0% of basin
- 270.5 km²18.4% of basin
- 9.1 km²0.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
243 distinct species · 897 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Arauca : 23 espèces reliées par 33 interactions GloBI sur 2 types (connectance 6.7%, filtre Serrano α=0.2). 9 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°
27,3°C
Annual rain
1 946mm
Moisture idx (CMI)
0,14
Runoff
1 077mm/an
PET
1 666mm
AET
1 175mm
Mean slope
0,1°
Water table
5cm
Forest
28%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)