HydroBASINS lev08 watershed · #6080457390
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 7 administrative regions : Anísio de Abreu, Bonfim do Piauí, Campo Alegre de Lourdes, Caracol, Jurema +2
Sub-basin area
1 586,1km²
Upstream area
1 586,4km²
Discharge
0,49m³/s
Mean elev.
536m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 689.4 km²43.6% of basin
- 528.2 km²33.4% of basin
- 250.6 km²15.9% of basin
- 51.1 km²3.2% of basin
- 30.4 km²1.9% of basin
- 19.5 km²1.2% of basin
- 10.2 km²0.6% of basin
1 intersecting protected areas
Park
98.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
456 distinct species · 1 567 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 : 34 espèces reliées par 50 interactions GloBI sur 4 types (connectance 5.1%, filtre Serrano α=0.2). 11 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°
25,5°C
Annual rain
797mm
Moisture idx (CMI)
-0,59
Runoff
24mm/an
PET
1 960mm
AET
673mm
Mean slope
2,7°
Water table
333cm
Forest
45%
Crops
12%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)