HydroBASINS lev08 watershed · #2080571100
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
415,9km²
Upstream area
415,9km²
Discharge
5,78m³/s
Mean elev.
1 586m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 372.8 km²89.5% of basin
- 43.9 km²10.5% of basin
22 communes (GADM L5)Available for FRA, RWA
- Guillaumes82.99 km²97% commune
- Entraunes78.65 km²99% commune
- Saint-Martin-d'Entraunes39.34 km²99% commune
- Daluis39.01 km²100% commune
- Péone36.94 km²76% commune
- Châteauneuf-d'Entraunes29.65 km²100% commune
- Villeneuve-d'Entraunes27.76 km²100% commune
- Sauze27.58 km²100% commune
- Castellet-lès-Sausses21.47 km²39% commune
- Sausses15.48 km²99% commune
- Saint-Léger4.00 km²96% commune
- Beuil2.65 km²4% commune
- Colmars2.45 km²3% commune
- La Croix-sur-Roudoule2.37 km²8% commune
- Saint-Benoît2.31 km²11% commune
- Saint-Étienne-de-Tinée1.42 km²1% commune
- Uvernet-Fours1.34 km²1% commune
- Entrevaux0.53 km²1% commune
- Saint-Dalmas-le-Selvage0.35 km²0% commune
- Braux0.21 km²2% commune
- Allos0.16 km²0% commune
- Auvare0.10 km²1% commune
11 intersecting protected areas
Entraunes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
196.87 km² overlap
National Park - Buffer zone/Area of adhesion
163.18 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
74.05 km² overlap
Le Mercantour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
74.05 km² overlap
Mercantour
IUCN IINational Park - Core Area
73.81 km² overlap
Sites à chauves souris - Castellet-Les-Sausses et Gorges de Daluis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.48 km² overlap
Gorges De Daluis
IUCN IVRegional Nature Reserve
11.09 km² overlap
Roche Grande
IUCN IaNational Park - Integrale Reserve
4.81 km² overlap
Collet De Sen
IUCN IVBiotope Protection Order
2.07 km² overlap
2 more protected areassorted by overlap area
Grand Coyer
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.63 km² overlap
Special Areas of Conservation (Habitats Directive)
0.39 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 137 distinct species · 368 768 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 : 10 espèces reliées par 105 interactions GloBI sur 5 types (connectance 41.5%, filtre Serrano α=0.2). 13 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°
6,2°C
Annual rain
1 048mm
Moisture idx (CMI)
0,32
Runoff
520mm/an
PET
673mm
AET
582mm
Mean slope
22,9°
Water table
749cm
Forest
62%
Crops
5%
Urban
0%
Protected
58%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)