Rivière
Le Coursac
⚠ Partial coverage : only 1 named segment matched so far. The real rivière extends much further (Strahler order 5 indicates a major river). Cross-source ingest in progress — values below reflect only the matched segment.
Crosses 2 administrative regions : Allier, Puy-de-Dôme
Max discharge
87,6m³/s
Max Strahler
5
Segments matched
1
River geography2 admin regions · 8 communes
2 administrative regions crossed (GADM L2)
- AllierAuvergne-Rhône-Alpes · France4.9 kmin this dpt
- Puy-de-DômeAuvergne-Rhône-Alpes · France0.0 kmin this dpt
8 communes (L5)For countries with L5
- Saint-Yorre2.52 km
- Mariol2.41 km
- Mons0.00 km
- Saint-Priest-Bramefant0.00 km
- Saint-Sylvestre-Pragoulin0.00 km
- Busset0.00 km
- Ris0.00 km
- Hauterive0.00 km
6 intersecting protected areas
Livradois-Forez
IUCN VRegional Nature Park
Val d'allier Saint Yorre-Joze
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Rivière Allier
IUCN IVBiotope Protection Order
Zones alluviales de la confluence Dore-Allier
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Allier sud
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Biotope Protection Order
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 779 distinct species · 26 938 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Le Coursac : 37 espèces reliées par 115 interactions GloBI sur 5 types (connectance 11.6%, 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).
Hydrology (HydroRIVERS v10)
Matched len.
3,6km
Max discharge
87,6m³/s
Max Strahler
5
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.