Gli insetti alloctoni… a casa nostra
RSI New Articles 07.01.2021, 17:00
Gli insetti alloctoni sono specie “aliene”, “esotiche”, non delle nostre parti che ultimamente hanno fatto capolino anche in Svizzera. Tra queste troviamo la solitaria locusta egiziana, l’invasivo coleottero giapponese, il calabrone asiatico “killer” di api, la multicolore coccinella asiatica. Il problema delle specie alloctone è che spesso non hanno predatori locali, malattie o parassitoidi che possano controllarne il numero. E rischiano di occupare la nicchia ecologica già occupata da un insetto autoctono. Parliamo di insetti alloctoni in Svizzera insieme a Lucia Pollini Paltrinieri, entomologa al Museo di Storia naturale di Lugano. Servizio a cura di Luisa Perego.
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