Rivière

Torrente Tarca

Crosses 2 administrative regions : Lugano, Varese

rivière

Total length

3km

Max discharge

23,5m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080530290777 km²

2 administrative regions crossed (GADM L2)

Lugano
Ticino · Switzerland
5.9 km
in this dpt
Varese
Lombardia · Italy
1.4 km
in this dpt

9 intersecting protected areas

Madonna del Piano
IUCN IV
Federal Inventory of Alluvial Zones of National Importance
Tresa
IUCN Not Assigned
Emerald Sites
Tresa
IUCN Not Reported
Emerald Network
Monte Caslano
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Stagno Figino-Cásoro
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Lago di Lugano a Cantonetto
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Pozza a est di Motto
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Ressiga
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance
Cava Gere Croglio
IUCN IV
Federal Inventory of Amphibian Spawning Areas of National Importance

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

Species present

1 939 distinct species · 18 037 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Torrente Tarca : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 118 interactions GloBI sur 6 types (connectance 13.7%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

118

Connectance

0.137

Patrimoniales

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)