Rivière· 7 segments
Le Bréda
Crosses 2 administrative regions : Isère, Savoie
Total length
33km
Max discharge
76,1m³/s
Max Strahler
5
Segments matched
7
River geography2 admin regions · 16 communes
2 administrative regions crossed (GADM L2)
16 communes (L5)For countries with L5
- Allevard5.89 km
- Pontcharra5.03 km
- La Ferrière2.51 km
- Le Moutaret2.51 km
- La Chapelle-Blanche2.19 km
- La Chapelle-du-Bard1.44 km
- Laissaud1.03 km
- Saint-Maximin0.84 km
- Saint-Pierre-d'Allevard0.24 km
- Chapareillan0.00 km
- Détrier0.00 km
- Les Marches0.00 km
- Villaroux0.00 km
- Pinsot0.00 km
- Barraux0.00 km
- Arvillard0.00 km
4 intersecting protected areas
Chartreuse
IUCN VRegional Nature Park
Belledonne
IUCN IVNational Hunting and Wildlife Reserve
Biotope Protection Order
les delaisses de l\'isere
IUCN IVLand acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 764 distinct species · 26 672 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 Bréda : 35 espèces + 3 bulles famille, 76 interactions GloBI documentées sur 5 types (connectance 10.8%, filtre Serrano α=0.2). Les 3 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
33km
Max discharge
76,1m³/s
Max Strahler
5
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.