HydroBASINS lev08 watershed · #6080091880
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 : Arauquita, Fortul, Páez, Saravena
Sub-basin area
745,2km²
Upstream area
8 771km²
Discharge
442,41m³/s
Mean elev.
182m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Cutufí622 km²
- Bassin de Río Banadia40 km²
4 dept-equivalent regions (GADM L2)
- 324.2 km²43.7% of basin
- 256.8 km²34.6% of basin
- 123.2 km²16.6% of basin
- 37.8 km²5.1% of basin
2 intersecting protected areas
San Camilo
IUCN VIForest Reserve (RF)
161.20 km² overlap
Río Viejo - San Camilo
IUCN IINational Park (PN)
34.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
189 distinct species · 1 427 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 : 26 espèces reliées par 37 interactions GloBI sur 4 types (connectance 5.9%, filtre Serrano α=0.2). 10 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°
25,6°C
Annual rain
2 589mm
Moisture idx (CMI)
0,31
Runoff
1 255mm/an
PET
1 775mm
AET
1 506mm
Mean slope
0,5°
Water table
9cm
Forest
18%
Crops
1%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)