Rivière· 10 segments
Melezza
Crosses 2 administrative regions : Locarno, Verbano-Cusio-Ossola
Total length
12km
Max discharge
45,5m³/s
Max Strahler
5
Segments matched
10
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- LocarnoTicino · Switzerland21.5 kmin this dpt
- Verbano-Cusio-OssolaPiemonte · Italy0.5 kmin this dpt
12 intersecting protected areas
Palagnedra
IUCN Not AssignedForest Reserves
Parco Maia
IUCN Not AssignedForest Reserves
Piano di Arbigo
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Delta della Maggia
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
Foce della Maggia
IUCN IVFederal Inventory of Alluvial Zones of National Importance
Lionza
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Gerre
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Monte di Comino
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Delta della Maggia
IUCN IVFederal Inventory of Fenlands of National Importance
3 more protected areassorted by area
Ex Aeroporto
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
Piano di Arbigo 5
IUCN IVFederal Inventory of Fenlands of National Importance
Selna
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 582 distinct species · 9 264 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Melezza : 21 espèces + 5 bulles famille, 38 interactions GloBI documentées sur 4 types (connectance 11.7%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
12km
Max discharge
45,5m³/s
Max Strahler
5
Segments matched
10
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.