Rivière· 7 segments
Dranse
Crosses 3 administrative regions : Entremont, Martigny, Saint-Maurice
Total length
26km
Max discharge
134,1m³/s
Max Strahler
5
Segments matched
7
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- MartignyValais · Switzerland18.7 kmin this dpt
- EntremontValais · Switzerland10.4 kmin this dpt
- Saint-MauriceValais · Switzerland0.0 kmin this dpt
14 intersecting protected areas
Mauvoisin
IUCN IVFederal Hunting Reserves
Arpille
IUCN Not AssignedForest Reserves
Mont-Chemin
IUCN Not AssignedForest Reserves
Follatères
IUCN Not AssignedForest Reserves
Mont du Rosel-Les Follatères
IUCN Not AssignedPrivate Nature Reserves
Les Follatères
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Sur le Mont
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
La Bâtiaz
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Les Fourches
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
5 more protected areassorted by area
Gouille du Rosel
IUCN Not AssignedPrivate Nature Reserves
Le Vernet
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
La Ravoire
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
La Ravoire
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Les gravières du Verney
IUCN Not AssignedPrivate Nature Reserves
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
2 950 distinct species · 22 189 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 Dranse : 24 espèces reliées par 130 interactions GloBI sur 5 types (connectance 17.5%, filtre Serrano α=0.2). 15 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
26km
Max discharge
134,1m³/s
Max Strahler
5
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.