Ontologia

Ruisseau· 2 segments

Grosse Melchaa

Crosses 1 administrative regions : Obwalden

ruisseau

Total length

16km

Max discharge

2,3m³/s

Max Strahler

2

Segments matched

2

River geography1 admin regions · 0 communes

Parent watershed

hybas-2080507730442 km²

1 administrative regions crossed (GADM L2)

  • Obwalden
    Obwalden · Switzerland
    5.0 km
    in this dpt

10 intersecting protected areas

  • Hutstock

    IUCN IV

    Federal Hunting Reserves

  • Chlisterli

    IUCN Not Assigned

    Forest Reserves

  • Turrenegg

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Siechenried

    IUCN IV

    Federal Inventory of Fenlands of National Importance

  • Lehberg

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Müllerenschwand

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Unter Lachen

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Chlisterli

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

  • Turren

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

1 more protected areas

  • Stollen

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

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

Species present

1 483 distinct species · 9 091 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 Grosse Melchaa : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 6 types (connectance 13.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
63
Connectance
0.136
Patrimoniales
2
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

16km

Max discharge

2,3m³/s

Max Strahler

2

Segments matched

2

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