HydroBASINS lev08 watershed · #2080537540
Bassin de Torrente Marmore
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 across 2 countries : Aosta, Visp
Sub-basin area
705,3km²
Upstream area
2 527,1km²
Discharge
75,36m³/s
Mean elev.
1 833m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- Aosta706.7 km²100.0% of basin
- Visp0.3 km²0.0% of basin
16 intersecting protected areas
Mont Avic e Mont Emilius
IUCN Not ReportedSpecial Protection Area (Birds Directive)
173.51 km² overlap
Parco naturale Mont Avic
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
35.05 km² overlap
Parco naturale del Mont Avic
IUCN IVRegional/Provincial Nature Park
35.03 km² overlap
Ambienti glaciali del Gruppo del Monte Rosa
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.48 km² overlap
Ambienti glaciali del Gruppo del Monte Rosa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.48 km² overlap
Ambienti calcarei d'alta quota attorno al Lago Tsan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.53 km² overlap
Ambienti xerici di Grand Brison - Cly
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.97 km² overlap
Riserva naturale Les Iles
IUCN IVRegional/Provincial Nature Reserve
0.37 km² overlap
Zona Umida di Les Iles di Saint - Marcel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.35 km² overlap
7 more protected areassorted by overlap area
Zona Umida di Les Iles di Saint - Marcel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.35 km² overlap
Stagno di Lo Ditor
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.22 km² overlap
Regional/Provincial Nature Reserve
0.21 km² overlap
Lago di Villa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.21 km² overlap
Vallone dell'Urtier
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
Stagno di Loson
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
Riserva naturale Lozon
IUCN IVRegional/Provincial Nature Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 827 distinct species · 22 813 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Marmore : 22 espèces + 5 bulles famille, 48 interactions GloBI documentées sur 3 types (connectance 13.7%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
3,2°C
Annual rain
1 431mm
Moisture idx (CMI)
0,53
Runoff
915mm/an
PET
573mm
AET
538mm
Mean slope
24,3°
Water table
790cm
Forest
66%
Crops
1%
Urban
6%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)