engleski

Bat fauna research of Paklenica National Park with special emphasis on altitude distribution

The Bat Research Group of the Biology Students Association – “BIUS” conducted additionalfield research of bat fauna in the Paklenica National Park, Croatia in the period between 15–20 August 2009. Considering former substantial results from the 2008 surveys, as well as high abundance and biodiversity of bat fauna in Paklenica NP, this field research was conducted in the summer of 2009, with special emphasis on altitude distribution. The aim was to determine unrecorded bat species for the Park by now and to detect potential differences in the bat fauna at different altitudes, as well as corresponding habitats. The survey was conducted by setting up mist nets on four research points near water at different altitudes in different habitats (380 m, 480m, 680m and 1230m above sea level). As a result, out of 12 bat species recorded two wereregistered for the first time for the Paklenica National Park (Myotis bechsteinii, Miniopterus schreibersii). Most of the captures at the 380 m altitude corresponds to Hypsugo savii (59%, 39 individuals). This species capture percentage declines with increasing altitude and at the 1253 m altitude it wasn’t mistnetted. At 480 m altutude, most of the capture (73%, 46 individuals) corresponds to Nyctalus noctula while at the altitude 676 m the majority (62%, 27 individuals) corresponds to Nyctalus leisleri. Myotis myotis was recorded only at 1253 m above sea level at the same time being the majority of the catch (40%, 10 individuals).

bats; vertical distribution; Paklenica; Croatia

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