HydroBASINS lev08 watershed · #6080647500
Bassin de Río Piraí
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 3 administrative regions : Obispo Santistéban, Sara, Warnes
Sub-basin area
435,1km²
Upstream area
4 607,8km²
Discharge
32,83m³/s
Mean elev.
280m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Guenda1019 km²
- Bassin de Río Piraí969 km²
3 dept-equivalent regions (GADM L2)
- 331.6 km²76.5% of basin
- 85.2 km²19.6% of basin
- Warnes16.9 km²3.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
467 distinct species · 2 429 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Río Piraí : 28 espèces reliées par 55 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 13 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°
24,4°C
Annual rain
1 267mm
Moisture idx (CMI)
-0,23
Runoff
366mm/an
PET
1 639mm
AET
1 072mm
Mean slope
0,2°
Water table
7cm
Forest
21%
Crops
3%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)