HydroBASINS lev08 watershed · #6080860990
Bassin de Río Arapey Grande
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 6 administrative regions across 2 countries : Baltasar Brum, Belén, Colonia Lavalleja, Federación, NA +1
Sub-basin area
683,9km²
Upstream area
11 996km²
Discharge
234,85m³/s
Mean elev.
61m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Arapey Grande2212 km²
- Bassin de Río Arapey Chico2156 km²
6 dept-equivalent regions (GADM L2)
- 450.3 km²65.9% of basin
- 163.9 km²24.0% of basin
- 64.6 km²9.5% of basin
- 3.0 km²0.4% of basin
- 0.8 km²0.1% of basin
- 0.6 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
416 distinct species · 4 201 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Arapey Grande : 30 espèces reliées par 36 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 4 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°
19,0°C
Annual rain
1 314mm
Moisture idx (CMI)
-0,09
Runoff
587mm/an
PET
1 444mm
AET
1 098mm
Mean slope
1,1°
Water table
71cm
Forest
4%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)