HydroBASINS lev08 watershed · #2080520660
Bassin de la Reyssouze
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 : Ain
Sub-basin area
500,7km²
Upstream area
500,7km²
Discharge
9,05m³/s
Mean elev.
225m
Administrative coverage
Species present
5 190 distinct species · 147 429 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Reyssouze : 30 espèces + 6 bulles famille, 89 interactions GloBI documentées sur 4 types (connectance 14.1%, filtre Serrano α=0.2). Les 6 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°
11,0°C
Annual rain
826mm
Moisture idx (CMI)
-0,07
Runoff
570mm/an
PET
888mm
AET
653mm
Mean slope
1,6°
Water table
74cm
Forest
15%
Crops
12%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)