Ruisseau· 15 segments
La Roya
Crosses 2 administrative regions : Alpes-Maritimes, Imperia
Total length
39km
Max discharge
10,9m³/s
Max Strahler
3
Segments matched
15
River geography2 admin regions · 5 communes
2 administrative regions crossed (GADM L2)
- Alpes-MaritimesProvence-Alpes-Côte d'Azur · France39.2 kmin this dpt
- ImperiaLiguria · Italy10.9 kmin this dpt
5 communes (L5)For countries with L5
- Tende20.93 km
- Breil-sur-Roya10.43 km
- Fontan5.77 km
- La Brigue2.06 km
- Saorge0.00 km
11 intersecting protected areas
National Park - Buffer zone/Area of adhesion
Le Mercantour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Le Mercantour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Mercantour
IUCN IINational Park - Core Area
Marguareis - La Brigue - Fontan - Saorge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Monte Grammondo - Torrente Bevera
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Sites à chauves souris de Breil-sur-Roya
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Mont Chajol
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Bendola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2 more protected areassorted by area
Monte Abellio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Fiume Roia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 15 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
3 508 distinct species · 51 256 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Roya : 19 espèces reliées par 77 interactions GloBI sur 5 types (connectance 20.4%, filtre Serrano α=0.2). 9 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
39km
Max discharge
10,9m³/s
Max Strahler
3
Segments matched
15
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.