HydroBASINS lev08 watershed · #6080427200
Bassin de Rio Piauí
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 : Pedro Laurentino, Ribeira do Piauí, Socorro do Piauí, São João do Piauí
Sub-basin area
310,9km²
Upstream area
18 170,7km²
Discharge
16,07m³/s
Mean elev.
264m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Piauí618 km²
- Bassin de Riacho do Luís Calado529 km²
4 dept-equivalent regions (GADM L2)
- 173.3 km²56.0% of basin
- 90.6 km²29.3% of basin
- 43.4 km²14.0% of basin
- 2.2 km²0.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
74 distinct species · 99 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Piauí : 11 espèces reliées par 12 interactions GloBI sur 2 types (connectance 13.2%, filtre Serrano α=0.2). 3 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°
27,0°C
Annual rain
745mm
Moisture idx (CMI)
-0,63
Runoff
29mm/an
PET
2 040mm
AET
629mm
Mean slope
1,7°
Water table
472cm
Forest
63%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)