Rivière· 7 segments
La Coise
Crosses 2 administrative regions : Loire, Rhône
Total length
53km
Max discharge
45,5m³/s
Max Strahler
4
Segments matched
7
River geography2 admin regions · 16 communes
2 administrative regions crossed (GADM L2)
16 communes (L5)For countries with L5
- Saint-Galmier5.48 km
- Montrond-les-Bains4.55 km
- Cuzieu4.01 km
- Saint-Médard-en-Forez2.07 km
- Marclopt1.22 km
- Saint-Denis-sur-Coise0.69 km
- Chazelles-sur-Lyon0.65 km
- Chalain-le-Comtal0.64 km
- Saint-Symphorien-sur-Coise0.57 km
- Chambœuf0.04 km
- Chevrières0.00 km
- Boisset-lès-Montrond0.00 km
- Unias0.00 km
- Coise0.00 km
- Pomeys0.00 km
- Magneux-Haute-Rive0.00 km
2 intersecting protected areas
Plaine du Forez
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Milieux alluviaux et aquatiques de la Loire
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 306 distinct species · 11 821 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 La Coise : 30 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 146 interactions GloBI sur 6 types (connectance 15.4%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
53km
Max discharge
45,5m³/s
Max Strahler
4
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.