HydroBASINS lev08 watershed · #2080535500
Bassin du Rhône
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 : Ain, Savoie
Sub-basin area
16,3km²
Upstream area
13 381,9km²
Discharge
415,65m³/s
Mean elev.
336m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Leysse619 km²
- Bassin du Rhône79 km²
2 dept-equivalent regions (GADM L2)
- 10.1 km²61.6% of basin
- 6.3 km²38.4% of basin
10 communes (GADM L5)Available for FRA, RWA
- Culoz4.91 km²25% commune
- Chanaz4.63 km²61% commune
- Lavours3.77 km²62% commune
- Lucey1.07 km²16% commune
- Cressin-Rochefort0.99 km²13% commune
- Saint-Pierre-de-Curtille0.52 km²3% commune
- Béon0.30 km²3% commune
- Ceyzérieu0.07 km²0% commune
- Conjux0.05 km²1% commune
- Flaxieu0.01 km²0% commune
12 intersecting protected areas
Forêts alluviales et lônes du Haut Rhône
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.93 km² overlap
Forêts alluviales et lônes du Haut Rhône
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.93 km² overlap
Special Areas of Conservation (Habitats Directive)
0.97 km² overlap
Avant-pays savoyard
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.96 km² overlap
Biotope Protection Order
0.81 km² overlap
Marais de Lavours
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.39 km² overlap
Marais de Lavours
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.39 km² overlap
Marais De Lavours
IUCN IVNational Nature Reserve
0.29 km² overlap
Lac du Bourget - Marais de Chautagne
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.04 km² overlap
3 more protected areassorted by overlap area
Lac du Bourget et marais de Chautagne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.03 km² overlap
Lac du Bourget et marais de Chautagne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.03 km² overlap
Land acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 760 distinct species · 169 774 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Rhône : 37 espèces reliées par 129 interactions GloBI sur 6 types (connectance 11.4%, filtre Serrano α=0.2). 11 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°
10,7°C
Annual rain
909mm
Moisture idx (CMI)
0,00
Runoff
711mm/an
PET
906mm
AET
680mm
Mean slope
7,9°
Water table
334cm
Forest
85%
Crops
0%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)