Ruisseau· 9 segments
Urnäsch
Crosses 4 administrative regions : Appenzell Ausserrhoden, Appenzell Innerrhoden, Sankt Gallen, Toggenburg
Total length
23km
Max discharge
4m³/s
Max Strahler
3
Segments matched
9
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- Appenzell AusserrhodenAppenzell Ausserrhoden · Switzerland20.6 kmin this dpt
- Appenzell InnerrhodenAppenzell Innerrhoden · Switzerland1.8 kmin this dpt
- Sankt GallenSankt Gallen · Switzerland0.1 kmin this dpt
- ToggenburgSankt Gallen · Switzerland0.0 kmin this dpt
19 intersecting protected areas
Säntis
IUCN IVFederal Hunting Reserves
Kreisalpen
IUCN Not AssignedForest Reserves
Schwaegalp-Bruggerwald
IUCN Not AssignedForest Reserves
Moore im Trämelloch
IUCN IVFederal Inventory of Fenlands of National Importance
Petersalp
IUCN Not AssignedForest Reserves
Wattbach
IUCN Not AssignedForest Reserves
Neckertal
IUCN Not AssignedForest Reserves
Sittertobel-Rotbach
IUCN Not AssignedForest Reserves
Cholwald Schwägalp
IUCN IVFederal Inventory of Fenlands of National Importance
10 more protected areassorted by area
Urnaeschtobel
IUCN Not AssignedForest Reserves
Egg
IUCN IVFederal Inventory of Fenlands of National Importance
Östl. Haumösli
IUCN IVFederal Inventory of Fenlands of National Importance
Burket Wald
IUCN IVFederal Inventory of Fenlands of National Importance
Federal Inventory of Raised and Transitional Mires of National Importance
Cholwald Schwägalp
IUCN IaFederal Inventory of Raised and Transitional Mires of National Importance
Zürchersmühle
IUCN Not AssignedPrivate Nature Reserves
Federal Inventory of Raised and Transitional Mires of National Importance
Rörenmoos
IUCN Not AssignedPrivate Nature Reserves
Moore im Trämelloch
IUCN IaFederal Inventory of Raised and Transitional Mires of National Importance
1 page = 1 named river (aggregation of 9 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
949 distinct species · 4 046 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Urnäsch : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 107 interactions GloBI sur 6 types (connectance 16.1%, filtre Serrano α=0.2). 12 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
23km
Max discharge
4,0m³/s
Max Strahler
3
Segments matched
9
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.