Rivière· 3 segments
La Rèche
Crosses 2 administrative regions : Hérens, Sierre
Total length
12km
Max discharge
109,9m³/s
Max Strahler
5
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- SierreValais · Switzerland12.0 kmin this dpt
- HérensValais · Switzerland2.0 kmin this dpt
10 intersecting protected areas
La Rèche
IUCN IVFederal Inventory of Fenlands of National Importance
Poutafontana
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Ar du Tsan
IUCN IVFederal Inventory of Fenlands of National Importance
Pouta Fontana - La Corne
IUCN Not AssignedPrivate Nature Reserves
Lac Souterrain
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Granges
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Chalais
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Crête Longue
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Crête Longue
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
1 more protected areassorted by area
Ormeaux
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
3 255 distinct species · 27 419 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 La Rèche : 33 espèces + 5 bulles famille, 51 interactions GloBI documentées sur 7 types (connectance 7.3%, filtre Serrano α=0.2). Les 5 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
12km
Max discharge
109,9m³/s
Max Strahler
5
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.