Fleuve· 2 segments
Le Petit Rhône
Crosses 2 administrative regions : Ardèche, Drôme
Total length
82km
Max discharge
1 390,5m³/s
Max Strahler
7
Segments matched
2
River geography2 admin regions · 6 communes
2 administrative regions crossed (GADM L2)
6 communes (L5)For countries with L5
- Livron-sur-Drôme3.48 km
- La Voulte-sur-Rhône0.59 km
- Rompon0.35 km
- Le Pouzin0.00 km
- Loriol-sur-Drôme0.00 km
- Étoile-sur-Rhône0.00 km
6 intersecting protected areas
Vallée de l'Eyrieux et ses affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Milieux alluviaux du Rhône aval
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Natural habitats protection Order
Rompon-Ouvèze-Payre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Printegarde
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Réseau de grottes à chauves-souris en Drôme et en Ardèche (grottes de Baume Sourde et de Meysset)
IUCN IVRegional Nature Reserve
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 737 distinct species · 19 677 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Petit Rhône : 28 espèces + 4 bulles famille, 64 interactions GloBI documentées sur 4 types (connectance 12.9%, filtre Serrano α=0.2). Les 4 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).
Hydrology (HydroRIVERS v10)
Total length
82km
Max discharge
1 390,5m³/s
Max Strahler
7
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.