HydroBASINS lev08 watershed · #6080279350
Bassin de Rio Pirangi
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 : Bom Princípio do Piauí, Buriti dos Lopes, Caxingó, Cocal, Cocal dos Alves +2
Sub-basin area
1 362,4km²
Upstream area
1 362,4km²
Discharge
13,85m³/s
Mean elev.
262m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 640.0 km²47.2% of basin
- 368.1 km²27.1% of basin
- 307.0 km²22.6% of basin
- 25.6 km²1.9% of basin
- 8.3 km²0.6% of basin
- 6.5 km²0.5% of basin
- 0.9 km²0.1% of basin
1 intersecting protected areas
Environmental Protection Area
1128.96 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
398 distinct species · 750 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Pirangi : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 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°
25,7°C
Annual rain
1 147mm
Moisture idx (CMI)
-0,34
Runoff
371mm/an
PET
1 741mm
AET
882mm
Mean slope
3,2°
Water table
264cm
Forest
42%
Crops
18%
Urban
1%
Protected
85%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)