Ontologia

HydroBASINS lev08 watershed · #2080527330

Bassin de Verzasca

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 8 administrative regions across 2 countries : Bellinzona, Como, Leventina, Locarno, Lugano +3

32% lakePfafstetter: 21406607

Sub-basin area

458,8km²

Upstream area

1 971,4km²

Discharge

84,67m³/s

Mean elev.

1 196m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Cannobino305 km²

▲ Receives from 2 basins

8 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Piano di Magadino

    IUCN Not Reported

    Emerald Network

    13.18 km² overlap

  • Piano di Magadino

    IUCN Not Assigned

    Emerald Sites

    13.18 km² overlap

  • Bolle di Magadino (TI)

    IUCN IV

    Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.

    9.09 km² overlap

  • Bolle di Magadino

    IUCN Not Assigned

    RAMSAR Sites

    6.62 km² overlap

  • Bolle di Magadino

    IUCN VI

    Wetland of International Importance (Ramsar Site)

    6.62 km² overlap

  • Val Porta

    IUCN Not Assigned

    Forest Reserves

    6.41 km² overlap

  • Bolle di Magadino

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    4.46 km² overlap

  • Albionasca

    IUCN Not Reported

    Emerald Network

    4.15 km² overlap

  • Albionasca

    IUCN Not Assigned

    Emerald Sites

    4.15 km² overlap

21 more protected areas

  • Bolle di Magadino

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

    2.55 km² overlap

  • Sonogno-Brione

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

    1.13 km² overlap

  • Lanche Al Pizzante

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.86 km² overlap

  • Ciossa Antognini

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.78 km² overlap

  • Vigna lunga-Trebbione

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.59 km² overlap

  • Canale Demanio

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.58 km² overlap

  • Boschetti

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

    0.54 km² overlap

  • Bograsso/Bolette

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.54 km² overlap

  • Piattone-Lischedo

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.52 km² overlap

  • Ciossa Antognini

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

    0.44 km² overlap

  • Bolle di Magadino

    IUCN Not Assigned

    Private Nature Reserves

    0.42 km² overlap

  • Biscia

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.36 km² overlap

  • Malcantone

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.32 km² overlap

  • Stagno Motto della Costa

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.21 km² overlap

  • Alpe Corte Nuovo

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.20 km² overlap

  • Motto d'Arbino

    IUCN Not Assigned

    Forest Reserves

    0.17 km² overlap

  • Isoletta

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.13 km² overlap

  • Santa Maria

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.10 km² overlap

  • Stagno di Progero

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.09 km² overlap

  • Stagno Cugnoli Curti

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.07 km² overlap

  • Ciossa Antognini

    IUCN IV

    Federal Inventory of Fenlands of National Importance

    0.06 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

8 805 distinct species · 361 332 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

361 332 obs · 12 cellules
Obs. / cellule
≥ 98 163
89 560–98 162
38 533–89 559
16 838–38 532
< 16 838

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 45 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 Bassin de Verzasca : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
80
Connectance
0.077
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

6,4°C

Annual rain

1 395mm

Moisture idx (CMI)

0,53

Runoff

1 352mm/an

PET

647mm

AET

640mm

Mean slope

27,0°

Water table

900cm

Forest

81%

Crops

2%

Urban

12%

Protected

5%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)