HydroBASINS lev08 watershed · #2080536490
Bassin de Dora Baltea / Doire baltée
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 1 administrative regions : Aosta
Sub-basin area
86,2km²
Upstream area
1 366,6km²
Discharge
38,01m³/s
Mean elev.
1 472m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dora di Valgrisenche1024 km²
- Bassin de Torrente Grauson256 km²
1 dept-equivalent regions (GADM L2)
- Aosta86.4 km²100.0% of basin
5 intersecting protected areas
Ambienti Xerici del Mont Torretta - Bellon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.27 km² overlap
Regional/Provincial Nature Reserve
0.19 km² overlap
Formazioni Steppiche della Cote de Gargantua
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.19 km² overlap
Mont Avic e Mont Emilius
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.11 km² overlap
Castello e miniere abbandonate di Aymavilles
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 051 distinct species · 16 346 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 Dora Baltea / Doire baltée : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 5 types (connectance 23.1%, filtre Serrano α=0.2). 11 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°
5,2°C
Annual rain
1 230mm
Moisture idx (CMI)
0,38
Runoff
889mm/an
PET
671mm
AET
599mm
Mean slope
19,9°
Water table
557cm
Forest
91%
Crops
2%
Urban
25%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)