HydroBASINS lev08 watershed · #6080092120
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 4 administrative regions across 2 countries : Arauca, Arauquita, Páez, Rómulo Gallegos
Sub-basin area
2 370,5km²
Upstream area
13 044,3km²
Discharge
554,9m³/s
Mean elev.
126m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Caño Caranal1162 km²
- Bassin de Río Arauca339 km²
4 dept-equivalent regions (GADM L2)
- 1259.8 km²53.4% of basin
- 932.5 km²39.5% of basin
- 165.0 km²7.0% of basin
- 3.1 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 230 distinct species · 34 135 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 : 20 espèces reliées par 20 interactions GloBI sur 3 types (connectance 6.2%, filtre Serrano α=0.2). 6 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°
26,8°C
Annual rain
1 763mm
Moisture idx (CMI)
0,05
Runoff
953mm/an
PET
1 661mm
AET
1 214mm
Mean slope
0,1°
Water table
4cm
Forest
29%
Crops
0%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)