HydroBASINS lev08 watershed · #6080848200
Bassin de Rio Santa Maria
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 2 administrative regions : Cacequi, Rosário do Sul
Sub-basin area
733,8km²
Upstream area
13 142,2km²
Discharge
285,3m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arroio da Divisa214 km²
- Bassin de Rio Santa Maria47 km²
2 dept-equivalent regions (GADM L2)
- 391.0 km²53.3% of basin
- 342.0 km²46.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
182 distinct species · 505 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Rio Santa Maria : 34 espèces reliées par 49 interactions GloBI sur 4 types (connectance 5.7%, filtre Serrano α=0.2). 8 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 582mm
Moisture idx (CMI)
0,11
Runoff
735mm/an
PET
1 411mm
AET
1 172mm
Mean slope
1,2°
Water table
70cm
Forest
15%
Crops
21%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)