HydroBASINS lev08 watershed · #2080556200
Bassin de Torrente Maira
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 3 administrative regions across 2 countries : Alpes-de-Haute-Provence, Cuneo, Torino
Sub-basin area
715,2km²
Upstream area
715,3km²
Discharge
16,44m³/s
Mean elev.
1 417m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 699.2 km²97.6% of basin
- 17.5 km²2.4% of basin
- 0.0 km²0.0% of basin
3 communes (GADM L5)Available for FRA, RWA
- Larche9.79 km²11% commune
- Saint-Paul-sur-Ubaye5.58 km²3% commune
- Meyronnes2.09 km²5% commune
9 intersecting protected areas
Alte Valli Stura e Maira
IUCN Not ReportedSpecial Protection Area (Birds Directive)
136.27 km² overlap
Sorgenti del Maira, Bosco di Saretto, Rocca Provenzale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.27 km² overlap
Stazioni di Euphorbia valliniana
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.07 km² overlap
Haute Ubaye - Massif du Chambeyron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.31 km² overlap
National Park - Buffer zone/Area of adhesion
1.03 km² overlap
Regional/Provincial Nature Reserve
0.69 km² overlap
La Tour des Sagnes - Vallon des Terres Pleines - Orrenaye
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.45 km² overlap
Confluenza Po - Varaita
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.24 km² overlap
Comba di Castelmagno
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 966 distinct species · 121 294 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 Maira : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 4 types (connectance 12.5%, filtre Serrano α=0.2). 8 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°
7,0°C
Annual rain
1 040mm
Moisture idx (CMI)
0,26
Runoff
618mm/an
PET
695mm
AET
585mm
Mean slope
18,6°
Water table
608cm
Forest
50%
Crops
17%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)