HydroBASINS lev08 watershed · #6080289300
Bassin de Río Oña
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 : Girón, Gualaquiza, Nabón, Oña, Saraguro +2
Sub-basin area
819,7km²
Upstream area
820km²
Discharge
13,04m³/s
Mean elev.
2 794m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 365.0 km²44.7% of basin
- 283.2 km²34.7% of basin
- SaraguroLoja · Ecuador108.7 km²13.3% of basin
- 39.0 km²4.8% of basin
- 18.2 km²2.2% of basin
- 1.6 km²0.2% of basin
- Gualaquiza0.2 km²0.0% of basin
2 intersecting protected areas
Marcos Perez de Castilla
IUCN VICommunity Protected Area
83.61 km² overlap
Yacuambi
IUCN VIDecentralised Autonomous Protected Area
2.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 425 distinct species · 6 561 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Oña : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 4 types (connectance 4.3%, filtre Serrano α=0.2). 7 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°
12,7°C
Annual rain
729mm
Moisture idx (CMI)
-0,36
Runoff
620mm/an
PET
1 168mm
AET
617mm
Mean slope
13,0°
Water table
488cm
Forest
2%
Crops
10%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)