HydroBASINS lev08 watershed · #6080509410
Bassin de Rio Preto
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 4 administrative regions : Cristalândia do Piauí, Formosa do Rio Preto, Santa Rita de Cássia, Sebastião Barros
Sub-basin area
2 681,7km²
Upstream area
18 993,8km²
Discharge
157,02m³/s
Mean elev.
525m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Preto557 km²
- Bassin de Rio Preto4 km²
4 dept-equivalent regions (GADM L2)
- 2662.1 km²99.7% of basin
- 5.6 km²0.2% of basin
- 2.4 km²0.1% of basin
- 1.0 km²0.0% of basin
3 intersecting protected areas
Environmental Protection Area
705.39 km² overlap
Ecological Station
7.46 km² overlap
Park
3.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
440 distinct species · 931 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Preto : 28 espèces reliées par 49 interactions GloBI sur 2 types (connectance 8.2%, filtre Serrano α=0.2). 7 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°
24,3°C
Annual rain
968mm
Moisture idx (CMI)
-0,51
Runoff
127mm/an
PET
1 987mm
AET
817mm
Mean slope
1,8°
Water table
172cm
Forest
85%
Crops
4%
Urban
0%
Protected
26%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)