HydroBASINS lev08 watershed · #6080550960
Bassin de Volta Grande - nRio Araguaia
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 : Cocalinho, Formoso do Araguaia, São Miguel do Araguaia
Sub-basin area
437,6km²
Upstream area
119 958,6km²
Discharge
1 770,62m³/s
Mean elev.
213m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ribeirão Baião935 km²
- Bassin de Rio Araguaia58 km²
3 dept-equivalent regions (GADM L2)
- 238.2 km²54.6% of basin
- 180.8 km²41.5% of basin
- São Miguel do AraguaiaGoiás · Brazil17.0 km²3.9% of basin
2 intersecting protected areas
Environmental Protection Area
244.31 km² overlap
Parque do Araguaia
IUCN Not ReportedIndigenous Area
229.62 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
83 distinct species · 103 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Volta Grande - nRio Araguaia : 14 espèces reliées par 13 interactions GloBI sur 2 types (connectance 10.8%, filtre Serrano α=0.2). 2 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°
26,9°C
Annual rain
1 647mm
Moisture idx (CMI)
-0,11
Runoff
486mm/an
PET
1 852mm
AET
1 216mm
Mean slope
0,2°
Water table
7cm
Forest
23%
Crops
1%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)