The Beetle (Coleoptera) and True bug (Heteroptera) species pool of the alpine “Pian di Gembro” wetland (Villa di Tirano, Italy) and its conservation

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Matteo Montagna *
Giuseppe Carlo Lozzia
Johann Baumgärtner
Carlo Andreis
Anna Giorgi
(*) Corresponding Author:
Matteo Montagna | matteo.montagna@unimi.it

Abstract

he C oleoptera and Heteroptera species pool was investigated in the “Pian di Gembro” wetland (Villa di T irano, Sondrio, Italy). T he wetland consists of a bog and its surroundings, referred to as wetland components, that are both subjected to a diversified intermediate management regime (DIMR). T he application of the DIMR for plant species conservation resulted in the establishment of 11 wetland zones with a characteristic vegetation. In a three year sampling program, 997 C oleoptera and Heteroptera representing 141 species from 14 families were collected. Among these species, 64 species share both wetland components, 11 are restricted to the bog and 63 were found in the surroundings only. Among the species pool there were 23 tyrphophile taxa and only one tyrphobiont. With the exception of one zone, all zones are inhabited by zone-specific species. By taking into account both the general species pool and the pool of species of particular interest to conservationists, only one zone can be considered as redundant since it is inhabited by species that occur also in other zones. Hence, all the zones, with one exception, are effective for species pool conservation. The existing DIMR implemented for plant species conservation is also effective for conserving the species pool of C oleoptera and Heteroptera.

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