HydroBASINS lev08 watershed · #2080532390
Bassin de Torrente San Bernardino
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 : Varese, Verbano-Cusio-Ossola
Sub-basin area
356,4km²
Upstream area
4 339,8km²
Discharge
192,49m³/s
Mean elev.
793m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Vedeggio777 km²
- Bassin de Cannobino305 km²
2 dept-equivalent regions (GADM L2)
- 262.2 km²73.4% of basin
- 95.1 km²26.6% of basin
12 intersecting protected areas
National Park
130.56 km² overlap
Val Grande
IUCN Not ReportedSpecial Protection Area (Birds Directive)
110.24 km² overlap
Val Grande
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
110.24 km² overlap
State Nature Reserve
24.19 km² overlap
Monti della Valcuvia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.51 km² overlap
Riserva naturale Val Grande
IUCN IaState Nature Reserve
10.61 km² overlap
Versante Nord del Campo dei Fiori
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.25 km² overlap
Regional/Provincial Nature Reserve
2.00 km² overlap
Monte Sangiano
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.78 km² overlap
3 more protected areassorted by overlap area
Grotte del Campo dei Fiori
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Regional/Provincial Nature Park
0.16 km² overlap
Parco Regionale Campo dei Fiori
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 012 distinct species · 73 596 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Torrente San Bernardino : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 6 types (connectance 11.6%, filtre Serrano α=0.2). 10 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°
8,6°C
Annual rain
1 260mm
Moisture idx (CMI)
0,39
Runoff
1 310mm/an
PET
756mm
AET
720mm
Mean slope
20,1°
Water table
647cm
Forest
80%
Crops
0%
Urban
15%
Protected
35%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)