Ruisseau· 6 segments
Le Gardon de Saint-Jean
Crosses 2 administrative regions : Gard, Lozère
Total length
50km
Max discharge
5m³/s
Max Strahler
3
Segments matched
6
River geography2 admin regions · 12 communes
2 administrative regions crossed (GADM L2)
12 communes (L5)For countries with L5
- Saint-André-de-Valborgne11.81 km
- Saint-Jean-du-Gard6.41 km
- Thoiras4.21 km
- L'Estréchure4.20 km
- Saumane3.86 km
- Peyrolles1.83 km
- Bassurels1.48 km
- Sainte-Croix-de-Caderle0.04 km
- Le Pompidou0.00 km
- Soudorgues0.00 km
- Les Plantiers0.00 km
- Corbès0.00 km
4 intersecting protected areas
National Park - Buffer zone/Area of adhesion
Cévennes
IUCN IINational Park - Core Area
Les Cévennes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée du Gardon de Saint-Jean
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
2 182 distinct species · 29 610 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Gardon de Saint-Jean : 34 espèces + 4 bulles famille, 70 interactions GloBI documentées sur 6 types (connectance 10.0%, 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
50km
Max discharge
5,0m³/s
Max Strahler
3
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.