HydroBASINS lev08 watershed · #2080577410
Bassin de la Vidange
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 : Bouches-du-Rhône
Sub-basin area
111,8km²
Upstream area
111,8km²
Discharge
0,65m³/s
Mean elev.
20m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 112.0 km²100.0% of basin
2 communes (GADM L5)Available for FRA, RWA
- Arles57.84 km²8% commune
- Saint-Martin-de-Crau54.15 km²25% commune
10 intersecting protected areas
Crau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
63.84 km² overlap
Crau centrale - Crau sèche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
61.72 km² overlap
Marais entre Crau et Grand Rhône
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.08 km² overlap
Marais de la vallée des Baux et marais d'Arles
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.48 km² overlap
Camargue
IUCN VRegional Nature Park
13.75 km² overlap
Alpilles
IUCN VRegional Nature Park
5.44 km² overlap
Marais de meyranne
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
3.35 km² overlap
Coussouls De Crau
IUCN IVNational Nature Reserve
0.91 km² overlap
L\'Ilon
IUCN IVRegional Nature Reserve
0.06 km² overlap
1 more protected areassorted by overlap area
Marais de l’ilon
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 691 distinct species · 48 370 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 la Vidange : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) + 5 bulles famille, 43 interactions GloBI documentées sur 2 types (connectance 9.2%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
13,9°C
Annual rain
651mm
Moisture idx (CMI)
-0,36
Runoff
184mm/an
PET
1 012mm
AET
551mm
Mean slope
0,4°
Water table
66cm
Forest
10%
Crops
37%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)