HydroBASINS lev08 watershed · #2080595480
Bassin de Río Sil
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 4 administrative regions : León, Lugo, Ourense, Zamora
Sub-basin area
571,4km²
Upstream area
4 538,9km²
Discharge
91,1m³/s
Mean elev.
851m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Cabrera566 km²
- Bassin de Río Sil106 km²
4 dept-equivalent regions (GADM L2)
- 539.6 km²94.3% of basin
- 27.2 km²4.7% of basin
- 5.1 km²0.9% of basin
- 0.4 km²0.1% of basin
16 intersecting protected areas
Pena Trevinca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.06 km² overlap
Pena Trevinca
IUCN Not AssignedNatura 2000
33.03 km² overlap
Pena Trevinca
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.37 km² overlap
Serra da Enciña da Lastra
IUCN Not AssignedNatural Park
20.09 km² overlap
Serra da Enciña da Lastra
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.90 km² overlap
Serra da Enciña da Lastra
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.90 km² overlap
Serra da Enciña da Lastra
IUCN Not AssignedNatura 2000
7.88 km² overlap
Natural Park
0.44 km² overlap
Lago de Sanabria y alrededores - ZEPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.42 km² overlap
7 more protected areassorted by overlap area
Lago de Sanabria y alrededores
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.42 km² overlap
Sierra de la Cabrera
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.36 km² overlap
Lago de la Baña
IUCN IIINatural Monument
0.35 km² overlap
Sierra de la Cabrera - ZEPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.32 km² overlap
Ancares - Courel
IUCN Not AssignedNatura 2000
0.26 km² overlap
Ancares - Courel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.26 km² overlap
Las Médulas
IUCN IIINatural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 684 distinct species · 32 670 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Sil : 25 espèces reliées par 88 interactions GloBI sur 6 types (connectance 13.2%, filtre Serrano α=0.2). 12 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°
10,8°C
Annual rain
893mm
Moisture idx (CMI)
-0,05
Runoff
596mm/an
PET
937mm
AET
624mm
Mean slope
16,3°
Water table
543cm
Forest
95%
Crops
1%
Urban
2%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)