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I pipistrelli hanno una forte resistenza ai rischi legati alla migrazione. Contrariamente agli uccelli, nonostante percorrano fino a 1'500 km verso sud per trovare il caldo, solo il 17% delle femmine e il 5% dei maschi muoiono nel viaggio.
Sono informazioni vitali per proteggere molte specie di pipistrelli in via di estinzione, sostengono il gruppo di studiosi lucernesi che hanno osservato, durante sei anni, una colonia di questi mammiferi in Ticino, e più precisamente nel Malcantone.
Altra scoperta: i pipistrelli sono fedeli, di anno in anno, alle zone di riposo scelte lungo il viaggio.
ATS/FM
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