Ontologia

Ruisseau· 10 segments

Engelberger Aa

Crosses 3 administrative regions : Nidwalden, Obwalden, Uri

ruisseau

Total length

31km

Max discharge

10m³/s

Max Strahler

3

Segments matched

10

River geography3 admin regions · 0 communes

Parent watershed

hybas-2080507640444 km²

3 administrative regions crossed (GADM L2)

  • Nidwalden
    Nidwalden · Switzerland
    10.6 km
    in this dpt
  • Obwalden
    Obwalden · Switzerland
    6.9 km
    in this dpt
  • Uri
    Uri · Switzerland
    2.0 km
    in this dpt

25 intersecting protected areas

  • Hutstock

    IUCN IV

    Federal Hunting Reserves

  • Widerwällhubel

    IUCN Not Assigned

    Forest Reserves

  • Alpenrösli-Herrenrüti

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

  • Gnappiried

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

  • Waldegg

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Höch Flue

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Oberst Geberts

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Grossriet/Gnappiriet

    IUCN IV

    Federal Inventory of Fenlands of National Importance

  • Ober Alpeli

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

16 more protected areas

  • Grossriet/Gnappiriet

    IUCN Ia

    Federal Inventory of Raised and Transitional Mires of National Importance

  • Zingeli

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Fang

    IUCN Not Assigned

    Forest Reserves

  • Rotihalten

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Geissholz

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Elmenstein

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Gumi

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Gross Planggen

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Ächerli

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Feldmoos

    IUCN IV

    Federal Inventory of Fenlands of National Importance

  • Brüggenhalten

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Gerschni

    IUCN Ia

    Federal Inventory of Raised and Transitional Mires of National Importance

  • Unterst Geberts

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Büelen

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Ennerberg

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

  • Feldmoos (Gerschni)

    IUCN Ia

    Federal Inventory of Raised and Transitional Mires of National Importance

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 528 distinct species · 8 689 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 39 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

Indicateurs du tissu écologique

Tissu écologique de Engelberger Aa : 29 espèces reliées par 92 interactions GloBI sur 6 types (connectance 10.2%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
92
Connectance
0.102
Patrimoniales
0
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)

Total length

31km

Max discharge

10,0m³/s

Max Strahler

3

Segments matched

10

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.