HydroBASINS lev08 watershed · #6080833490
Bassin de Arroio 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 7 administrative regions : Alto Alegre, Carazinho, Colorado, Ibirubá, Quinze de Novembro +2
Sub-basin area
564,7km²
Upstream area
564,9km²
Discharge
17,94m³/s
Mean elev.
434m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 178.6 km²31.7% of basin
- 123.5 km²21.9% of basin
- Colorado120.5 km²21.4% of basin
- 75.1 km²13.3% of basin
- 51.4 km²9.1% of basin
- 14.8 km²2.6% of basin
- 0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
244 distinct species · 733 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Grande : 27 espèces reliées par 45 interactions GloBI sur 4 types (connectance 6.4%, filtre Serrano α=0.2). 11 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 664mm
Moisture idx (CMI)
0,17
Runoff
994mm/an
PET
1 373mm
AET
1 242mm
Mean slope
3,3°
Water table
195cm
Forest
22%
Crops
69%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)