HydroBASINS lev08 watershed · #6080848730
Bassin de Arroio dos Ratos
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 12 administrative regions : Arroio dos Ratos, Barão do Triunfo, Butiá, Cerro Grande do Sul, Charqueadas +7
Sub-basin area
2 086,5km²
Upstream area
2 086,6km²
Discharge
48,66m³/s
Mean elev.
206m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
12 dept-equivalent regions (GADM L2)
- 542.9 km²26.0% of basin
- 380.2 km²18.2% of basin
- 317.4 km²15.2% of basin
- 291.2 km²14.0% of basin
- 238.1 km²11.4% of basin
- 176.6 km²8.5% of basin
- 82.5 km²4.0% of basin
- 32.6 km²1.6% of basin
4 moreFull L2 list
- Sertão Santana19.0 km² · 0.9%
- Minas do Leão2.3 km² · 0.1%
- Guaíba1.5 km² · 0.1%
- Cerro Grande do Sul0.0 km² · 0.0%
1 intersecting protected areas
Natural Heritage Private Reserve
0.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
953 distinct species · 6 484 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Arroio dos Ratos : 26 espèces reliées par 32 interactions GloBI sur 3 types (connectance 6.9%, 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°
18,5°C
Annual rain
1 413mm
Moisture idx (CMI)
0,12
Runoff
736mm/an
PET
1 247mm
AET
1 064mm
Mean slope
5,4°
Water table
221cm
Forest
22%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)