HydroBASINS lev08 watershed · #6080092030
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 : Cubará, Páez, Saravena, Toledo
Sub-basin area
169,3km²
Upstream area
5 404,8km²
Discharge
263,09m³/s
Mean elev.
378m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Cobaría2019 km²
- Bassin de Río Margua696 km²
4 dept-equivalent regions (GADM L2)
- 119.4 km²70.8% of basin
- 31.8 km²18.9% of basin
- Toledo16.7 km²9.9% of basin
- 0.7 km²0.4% of basin
3 intersecting protected areas
Tamá
IUCN IINational Natural Park
5.97 km² overlap
National Park (PN)
1.80 km² overlap
National Hydraulic Reserve (RNH)
1.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
282 distinct species · 1 515 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 27 interactions GloBI sur 2 types (connectance 7.7%, 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°
24,5°C
Annual rain
4 117mm
Moisture idx (CMI)
0,59
Runoff
1 631mm/an
PET
1 678mm
AET
1 621mm
Mean slope
4,2°
Water table
129cm
Forest
49%
Crops
2%
Urban
12%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)