| Abstract | The Piora Valley is particularly rich in water. The presence of 21 lakes, 28 ponds, 14 bogs, and 58 streams has been recorded. This work presents the results of a field survey that took place in July 2010, during the "48h of biodiversity" event. Samples were taken with a kicknet in seven streams and one spring
to survey their macroinvertebrate fauna and add new species to the already existing faunistic lists. This campaign took also in consideration, for the first time, Chironomids and Oligochaetes. The eight sampling locations included a wide spectrum of aquatic environments: a spring, first and second degree brooks, the main river of the valley, as well as the in- and outlet of Lake of Cadagno. These samples resulted in 23 different EPT taxa (4 Ephemeroptera, 6 Plecoptera, and 12 Trichoptera), as well as 12 taxa of Chironomids - with the subfamily Orthocladiinae being the best represented- and 5 taxa of Oligochaetes. EPT were well represented, with 9 new taxa added to the previous lists (2 Ephemeroptera, 2 Plecoptera, 5 Trichoptera).
The Chironomidae wera also well represented, while Oligochaeta were scarce. |
| Text | 325646 2012 ISI Web of Science WOS ZOOR14911060213 southern Swiss Alps high altitude insects Ephemeroptera Plecoptera Trichoptera Chironomidae Oligochaeta Freshwater macroinvertebrates of the Piora Valley Canton Ticino, Switzerland Angela Boggero; Beatrice Jann; Silvia Zaupa CNR Istituto per lo Studio degli Ecosistemi, Largo Tonolli 50, I 28922 Verbania Pallanza, Italy The Piora Valley is particularly rich in water. The presence of 21 lakes, 28 ponds, 14 bogs, and 58 streams has been recorded. This work presents the results of a field survey that took place in July 2010, during the 48h of biodiversity event. Samples were taken with a kicknet in seven streams and one spring to survey their macroinvertebrate fauna and add new species to the already existing faunistic lists. This campaign took also in consideration, for the first time, Chironomids and Oligochaetes. The eight sampling locations included a wide spectrum of aquatic environments a spring, first and second degree brooks, the main river of the valley, as well as the in and outlet of Lake of Cadagno. These samples resulted in 23 different EPT taxa 4 Ephemeroptera, 6 Plecoptera, and 12 Trichoptera , as well as 12 taxa of Chironomids with the subfamily Orthocladiinae being the best represented and 5 taxa of Oligochaetes. EPT were well represented, with 9 new taxa added to the previous lists 2 Ephemeroptera, 2 Plecoptera, 5 Trichoptera . The Chironomidae wera also well represented, while Oligochaeta were scarce. La regione della Val Piora e particolarmente ricca di acque risultano infatti censiti 21 laghi, 58 corsi d acqua, 28 stagni e 14 bolle. Questo lavoro presenta i risultati di un campionamento condotto nel mese di luglio 2010, durante le 48 ore della biodiversita , tramite retino immanicato kicknet , in sette corsi d acqua e una sorgente della Val Piora, per analizzare la composizione della fauna di macroinvertebrati e ampliare il precedente elenco faunistico. Questo campionamento costituisce il primo risultato su due gruppi non ancora considerati nell area di studio i Ditteri Chironomidi e gli Oligocheti. Gli otto siti scelti per il campionamento comprendono una serie di ambienti acquatici una sorgente, corsi d aqua di primo e secondo grado, il corso d acqua principale della valle, come pure l immissario e l emissario del Lago Cadagno. Tali campioni hanno permesso di approfondire le conoscenze sulla fauna macroinvertebrata, contribuendo alla raccolta di 23 differenti taxa di EPT 4 Ephemeroptera, 6 Plecoptera e 12 Trichoptera , nonche 12 taxa di Ditteri Chironomidi con la sottofamiglia delle Orthocladiinae come entita piu rappresentata e 5 taxa di Oligocheti. Il gruppo degli EPT era ben rappresentato, con 9 nuovi taxa aggiunti alle liste faunistiche precedenti 2 Ephemeroptera, 2 Plecoptera, 5 Trichoptera . I Chironomidi, erano pure ben rappresentati, mentre gli Oligocheti erano scarsi. 11 Published version Freshwater macroinvertebrates of the Piora Valley Canton Ticino, Switzerland 2012_MemSocTicSciNat_Piora.pdf Articolo in rivista Societa ticinese di scienze naturali 1421 5586 Memorie Societa ticinese di scienze naturali Memorie Societa ticinese di scienze naturali Memorie Soc. ticin. sci. nat. Memorie. ZAUPA SILVIA angela.boggero BOGGERO ANGELA TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |
