HydroBASINS lev08 watershed · #6080385400
Bassin de Rio Itaueira
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 5 administrative regions : Amarante, Barão de Grajaú, Floriano, Francisco Ayres, Nazaré do Piauí
Sub-basin area
1 068,6km²
Upstream area
10 171,2km²
Discharge
40,84m³/s
Mean elev.
206m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Uíca1533 km²
- Bassin de Riacho do Pico126 km²
5 dept-equivalent regions (GADM L2)
- 1027.4 km²96.6% of basin
- 36.3 km²3.4% of basin
- 0.2 km²0.0% of basin
- 0.2 km²0.0% of basin
- 0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
235 distinct species · 352 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Itaueira : 23 espèces reliées par 23 interactions GloBI sur 3 types (connectance 7.7%, 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°
27,2°C
Annual rain
1 030mm
Moisture idx (CMI)
-0,44
Runoff
169mm/an
PET
1 826mm
AET
869mm
Mean slope
2,1°
Water table
271cm
Forest
5%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)