HydroBASINS lev08 watershed · #2080016280
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 1 administrative regions : Alpes-Maritimes
Sub-basin area
124,2km²
Upstream area
2 825,3km²
Discharge
62,79m³/s
Mean elev.
345m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de l'Estéron450 km²
- Bassin du Var10 km²
1 dept-equivalent regions (GADM L2)
- 124.4 km²100.0% of basin
19 communes (GADM L5)Available for FRA, RWA
- Nice21.28 km²29% commune
- Levens17.12 km²58% commune
- Carros15.04 km²100% commune
- Le Broc11.58 km²62% commune
- Gattières10.17 km²98% commune
- Saint-Blaise8.13 km²100% commune
- Saint-Laurent-du-Var7.10 km²72% commune
- Castagniers6.96 km²97% commune
- Saint-Jeannet6.41 km²44% commune
- La Gaude5.03 km²38% commune
- Aspremont4.95 km²54% commune
- Saint-Martin-du-Var4.91 km²94% commune
- Colomars3.15 km²52% commune
- La Roquette-sur-Var1.79 km²41% commune
- Tourrette-Levens0.31 km²2% commune
- Cagnes-sur-Mer0.19 km²1% commune
- Gilette0.10 km²1% commune
- Bouyon0.09 km²1% commune
- Coaraze0.06 km²0% commune
11 intersecting protected areas
Préalpes D’Azur
IUCN VRegional Nature Park
31.87 km² overlap
Basse Vallée du Var
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.56 km² overlap
Vallons obscurs de Nice et de Saint Blaise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.53 km² overlap
Biotope Protection Order
3.53 km² overlap
Préalpes de Grasse
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.14 km² overlap
Préalpes de Grasse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.14 km² overlap
Gorges de la Vésubie et du Var - mont Vial - mont Férion
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.75 km² overlap
Vallon obscur de Carros
IUCN IVBiotope Protection Order
0.67 km² overlap
Biotope Protection Order
0.14 km² overlap
2 more protected areassorted by overlap area
Bec De L\'Esteron
IUCN IVBiotope Protection Order
0.13 km² overlap
Biotope Protection Order
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 491 distinct species · 636 226 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 : 29 espèces reliées par 130 interactions GloBI sur 6 types (connectance 15.1%, 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°
13,3°C
Annual rain
827mm
Moisture idx (CMI)
-0,06
Runoff
673mm/an
PET
879mm
AET
625mm
Mean slope
12,7°
Water table
426cm
Forest
35%
Crops
2%
Urban
46%
Protected
28%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)