Ruisseau
Kleine Melchaa
Crosses 1 administrative regions : Obwalden
Total length
11km
Max discharge
1,2m³/s
Max Strahler
2
Segments matched
1
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- ObwaldenObwalden · Switzerland5.3 kmin this dpt
16 intersecting protected areas
Hanenried
IUCN Not ReportedEmerald Network
Hanenried
IUCN Not AssignedEmerald Sites
Chli Älggi
IUCN Not AssignedForest Reserves
Usser Allmend
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Steinibach
IUCN IVFederal Inventory of Alluvial Zones of National Importance
Hanenriet
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Hanenried
IUCN IVFederal Inventory of Fenlands of National Importance
Usser Allmend
IUCN IVFederal Inventory of Fenlands of National Importance
Hanen
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
7 more protected areassorted by area
Usser-Allmend
IUCN Not AssignedPrivate Nature Reserves
Walsli
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Steinmeise
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Unter Schinberg
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Birchegg
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Hanenried
IUCN Not AssignedPrivate Nature Reserves
Obstocken
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
2 334 distinct species · 25 110 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 Kleine Melchaa : 29 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 7 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
11km
Max discharge
1,2m³/s
Max Strahler
2
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.