HydroBASINS lev08 watershed · #2080534350
Bassin de Torrente Egua
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 : Verbano-Cusio-Ossola, Vercelli
Sub-basin area
129,6km²
Upstream area
129,6km²
Discharge
4,44m³/s
Mean elev.
1 643m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 129.5 km²99.7% of basin
- 0.4 km²0.3% of basin
6 intersecting protected areas
Alta Val Sesia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.66 km² overlap
Alta Valsesia e Valli Otro, Vogna, Gronda, Artogna e Sorba
IUCN Not ReportedSpecial Protection Area (Birds Directive)
23.33 km² overlap
Parco naturale Alta Valsesia
IUCN IVRegional/Provincial Nature Park
18.15 km² overlap
Val Mastallone
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.24 km² overlap
Val Mastallone
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.24 km² overlap
Monte Rosa
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 637 distinct species · 5 785 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Egua : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 6 types (connectance 10.8%, 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°
4,1°C
Annual rain
1 378mm
Moisture idx (CMI)
0,56
Runoff
1 084mm/an
PET
577mm
AET
569mm
Mean slope
30,2°
Water table
1 002cm
Forest
76%
Crops
2%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)