HydroBASINS lev08 watershed · #6080027570
Bassin de Río Petorca
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 2 administrative regions : Choapa, Petorca
Sub-basin area
1 982,5km²
Upstream area
1 982,6km²
Discharge
10,28m³/s
Mean elev.
1 306m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- PetorcaValparaíso · Chile1968.4 km²99.4% of basin
- 12.5 km²0.6% of basin
1 intersecting protected areas
Humedal Salinas de Pullally - Dunas de Longotoma
IUCN Not ReportedNature Sanctuary
0.88 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
449 distinct species · 5 609 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Petorca : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 4 types (connectance 7.7%, filtre Serrano α=0.2). 9 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°
12,0°C
Annual rain
279mm
Moisture idx (CMI)
-0,77
Runoff
141mm/an
PET
1 232mm
AET
242mm
Mean slope
17,5°
Water table
729cm
Forest
0%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)