Rivière· 2 segments

Widenbach

Crosses 3 administrative regions : Appenzell Ausserrhoden, Rheintal, Wil

rivière

Total length

19km

Max discharge

29,2m³/s

Max Strahler

Segments matched

River geography3 admin regions · 0 communes

Parent watershed

hybas-20804921401758 km²

3 administrative regions crossed (GADM L2)

Wil
Sankt Gallen · Switzerland
4.4 km
in this dpt
Rheintal
Sankt Gallen · Switzerland
3.8 km
in this dpt
Appenzell Ausserrhoden
Appenzell Ausserrhoden · Switzerland
0.1 km
in this dpt

8 intersecting protected areas

Gillhof-Glattburg
IUCN IV
Federal Inventory of Alluvial Zones of National Importance
Gross Moos/Rietlerwald
IUCN IV
Federal Inventory of Fenlands of National Importance
Auen an der Glatt
IUCN Not Assigned
Private Nature Reserves
Ebersolhalde
IUCN Not Assigned
Private Nature Reserves
Kiesgrube Landguet
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Ehemalige Kiesgrube Au
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Hoch Chapf
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Glattburg Weiher
IUCN Not Assigned
Private Nature Reserves

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

2 517 distinct species · 25 181 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Widenbach : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 109 interactions GloBI sur 5 types (connectance 14.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

109

Connectance

0.147

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)