HydroBASINS lev08 watershed · #2080572220
Bassin du Var
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 : Alpes-Maritimes, Alpes-de-Haute-Provence
Sub-basin area
429,9km²
Upstream area
1 088,5km²
Discharge
19,67m³/s
Mean elev.
1 079m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Var416 km²
- Bassin de la Vaïre243 km²
2 dept-equivalent regions (GADM L2)
- 343.4 km²79.7% of basin
- 87.3 km²20.3% of basin
36 communes (GADM L5)Available for FRA, RWA
- Entrevaux53.87 km²88% commune
- Beuil50.69 km²67% commune
- Rigaud31.77 km²100% commune
- Pierlas30.96 km²100% commune
- Val-de-Chalvagne30.33 km²94% commune
- La Croix-sur-Roudoule27.94 km²92% commune
- Villars-sur-Var25.38 km²100% commune
- Puget-Rostang22.67 km²100% commune
- Thiéry21.77 km²100% commune
- Puget-Théniers21.37 km²100% commune
- Auvare17.59 km²99% commune
- Malaussène17.00 km²85% commune
- Touët-sur-Var14.60 km²100% commune
- Lieuche13.13 km²99% commune
- Massoins11.54 km²100% commune
- Péone6.68 km²14% commune
- Ascros5.59 km²32% commune
- Amirat4.91 km²37% commune
- La Penne3.97 km²22% commune
- Tournefort3.73 km²38% commune
- Ilonse3.20 km²8% commune
- Toudon2.53 km²14% commune
- Guillaumes2.48 km²3% commune
- Castellet-lès-Sausses2.06 km²4% commune
- Pierrefeu1.71 km²8% commune
- Bairols1.18 km²8% commune
- Tourette-du-Château0.43 km²4% commune
- Ubraye0.42 km²1% commune
- La Rochette0.33 km²2% commune
- Roubion0.30 km²1% commune
- Saint-Benoît0.25 km²1% commune
- Briançonnet0.15 km²1% commune
- Saint-Léger0.15 km²4% commune
- Revest-les-Roches0.02 km²0% commune
- Sausses0.01 km²0% commune
- Utelle0.00 km²0% commune
9 intersecting protected areas
Special Areas of Conservation (Habitats Directive)
85.72 km² overlap
National Park - Buffer zone/Area of adhesion
58.91 km² overlap
Préalpes D’Azur
IUCN VRegional Nature Park
19.57 km² overlap
Gorges de la Vésubie et du Var - mont Vial - mont Férion
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.59 km² overlap
Mercantour
IUCN IINational Park - Core Area
1.00 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.99 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.99 km² overlap
Sites à chauves souris - Castellet-Les-Sausses et Gorges de Daluis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.73 km² overlap
Gorges De Daluis
IUCN IVRegional Nature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 639 distinct species · 357 298 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 du Var : 14 espèces reliées par 108 interactions GloBI sur 5 types (connectance 33.2%, filtre Serrano α=0.2). 12 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°
9,2°C
Annual rain
902mm
Moisture idx (CMI)
0,13
Runoff
604mm/an
PET
774mm
AET
613mm
Mean slope
22,3°
Water table
785cm
Forest
91%
Crops
2%
Urban
0%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)