Rivière· 12 segments
Sitter
Crosses 4 administrative regions : Appenzell Ausserrhoden, Appenzell Innerrhoden, Bischofszell, Sankt Gallen
Total length
50km
Max discharge
14,5m³/s
Max Strahler
4
Segments matched
12
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- Appenzell InnerrhodenAppenzell Innerrhoden · Switzerland20.3 kmin this dpt
- Sankt GallenSankt Gallen · Switzerland7.3 kmin this dpt
- BischofszellThurgau · Switzerland3.8 kmin this dpt
- Appenzell AusserrhodenAppenzell Ausserrhoden · Switzerland0.8 kmin this dpt
24 intersecting protected areas
Säntis
IUCN IVFederal Hunting Reserves
Wattbach
IUCN Not AssignedForest Reserves
Sittertobel-Rotbach
IUCN Not AssignedForest Reserves
Hauptwiler Weiher
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Waffenplatz Breitfeld
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Weissbad
IUCN IVFederal Inventory of Alluvial Zones of National Importance
Hüttenberg
IUCN IVFederal Inventory of Fenlands of National Importance
Federal Inventory of Fenlands of National Importance
Vordere Wartegg
IUCN IVFederal Inventory of Fenlands of National Importance
15 more protected areassorted by area
Bildweiher
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Ochsenweid
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Gontenmoos
IUCN IVFederal Inventory of Fenlands of National Importance
Herren / Helchen
IUCN Not AssignedPrivate Nature Reserves
Gontenmoos
IUCN Not AssignedPrivate Nature Reserves
Oberbergfeld
IUCN Not AssignedPrivate Nature Reserves
Gontenmoos
IUCN IaFederal Inventory of Raised and Transitional Mires of National Importance
Kau
IUCN Not AssignedPrivate Nature Reserves
Halten
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Helchen
IUCN IaFederal Inventory of Raised and Transitional Mires of National Importance
Vordere Wartegg
IUCN IaFederal Inventory of Raised and Transitional Mires of National Importance
Kiesgrube List
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Rässenau
IUCN Not AssignedPrivate Nature Reserves
Hüslers
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Kaubachtobel, Gonten
IUCN Not AssignedPrivate Nature Reserves
1 page = 1 named river (aggregation of 12 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 032 distinct species · 9 090 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 Sitter : 15 espèces reliées par 122 interactions GloBI sur 6 types (connectance 28.0%, 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
50km
Max discharge
14,5m³/s
Max Strahler
4
Segments matched
12
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.