HydroBASINS lev08 watershed · #6080856660
Bassin de Río Cuareim / Rio Quaraí
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 : Mataojo, NA, Quaraí, Sant'Ana do Livramento, Tranqueras
Sub-basin area
1 825,4km²
Upstream area
1 825,4km²
Discharge
40,68m³/s
Mean elev.
251m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 1236.0 km²67.8% of basin
- 584.9 km²32.1% of basin
- 1.5 km²0.1% of basin
- 0.7 km²0.0% of basin
- 0.7 km²0.0% of basin
- 0.0 km²0.0% of basin
3 intersecting protected areas
Environmental Protection Area
14.05 km² overlap
Reserva de Biosfera Bioma Pampa
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1.39 km² overlap
Valle del Lunarejo
IUCN VProtected Landscape
0.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
357 distinct species · 3 216 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 Cuareim / Rio Quaraí : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 9.0%, 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°
18,2°C
Annual rain
1 421mm
Moisture idx (CMI)
-0,01
Runoff
674mm/an
PET
1 430mm
AET
1 130mm
Mean slope
2,1°
Water table
131cm
Forest
1%
Crops
3%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)