HydroBASINS lev08 watershed · #2080534980
Bassin de l'Ain
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, Isère
Sub-basin area
3,7km²
Upstream area
16 265,3km²
Discharge
471,01m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Rhône856 km²
- Bassin de la Bourbre737 km²
2 dept-equivalent regions (GADM L2)
- 2.0 km²54.9% of basin
- 1.7 km²45.1% of basin
4 communes (GADM L5)Available for FRA, RWA
1 intersecting protected areas
Basse vallée de l'Ain, confluence Ain-Rhône
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.98 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 349 distinct species · 15 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 l'Ain : 27 espèces reliées par 75 interactions GloBI sur 4 types (connectance 12.6%, filtre Serrano α=0.2). 8 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°
11,4°C
Annual rain
832mm
Moisture idx (CMI)
-0,10
Runoff
506mm/an
PET
926mm
AET
672mm
Mean slope
1,4°
Water table
81cm
Forest
0%
Crops
60%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)