HydroBASINS lev08 watershed · #6080867000
Bassin de Arroyo Ayuí 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 3 administrative regions across 2 countries : Concordia, NA, San Antonio
Sub-basin area
625,7km²
Upstream area
243 096,4km²
Discharge
5 941,77m³/s
Mean elev.
46m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arroyo Gualeguaycito455 km²
- Bassin de Río Uruguay63 km²
3 dept-equivalent regions (GADM L2)
- 321.5 km²51.4% of basin
- 193.7 km²31.0% of basin
- 109.9 km²17.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 257 distinct species · 35 932 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Arroyo Ayuí Grande : 28 espèces reliées par 37 interactions GloBI sur 3 types (connectance 7.0%, filtre Serrano α=0.2). 5 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°
18,7°C
Annual rain
1 284mm
Moisture idx (CMI)
-0,12
Runoff
548mm/an
PET
1 454mm
AET
1 083mm
Mean slope
1,1°
Water table
121cm
Forest
15%
Crops
14%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)