HydroBASINS lev08 watershed · #6080417240
Bassin de Rio Arraias
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 : Conceição do Araguaia, Redenção, Santa Maria das Barreiras
Sub-basin area
2 293,2km²
Upstream area
6 264km²
Discharge
155,18m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Arraias1386 km²
- Bassin de Córrego São Martim394 km²
3 dept-equivalent regions (GADM L2)
- 1749.1 km²76.6% of basin
- 531.2 km²23.3% of basin
- 3.3 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
376 distinct species · 1 169 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 Rio Arraias : 26 espèces reliées par 28 interactions GloBI sur 2 types (connectance 6.0%, 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°
26,0°C
Annual rain
1 761mm
Moisture idx (CMI)
-0,07
Runoff
903mm/an
PET
1 902mm
AET
1 312mm
Mean slope
2,0°
Water table
111cm
Forest
30%
Crops
6%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)