Ábrahám Levente (szerk.): Válogatott tanulmányok X. - Natura Somogyiensis 25. (Kaposvár, 2014)

Winkler D. - Erdő Á. - Mille J. - Kovács H.: New data on the distribution of Barbastelle bat (Barbastella barbastellus) in Western Hungary

Winkler et al.: New data on the distribution of Barbastelle bat

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Fig. 1: Typical alternating echolocation call of barbastelle bat (recorded at the Rába River)

The sound files of .wav format recorded with the detector were first edited by using the software Adobe Audition 3.0. The edited files were then analysed with the software SonoBat 3.1.5p by measuring the following key parameters of the echolocation call: frequency of maximum energy; start frequency; end frequency; call duration; inter-pulse intervals, respectively.

Results

During the surveys we detected the presence of the barbastelle bat in 9 out of 12 Natura 2000 sites (Table 1). While recorded only in the spring and autumn period in the site “Rába és Csömöc-völgy”, the species was constantly present, including reproduction period in the summer, in all other sites, barbastelle bats have been detected in various riverine and floodland forest types including ash-alder woodlands, willow-poplar woodlands, oak-elm-ash woodlands, also in lowland pedunculate oak-hombcam woodlands.

Tabic 1: Natura 2000 sites with barbastelle bat record data

Natura 2000 site record date (dd/mm/yyyy)

Ablánc-patak völgye Rába és Csörnöc völgy

Boronka-nielléke

Dékány-hegy

Egett-berek és Jánosházi erdő

Kisbajomi-crdő

Mocsoládi-erdő

Pati-erdő

Törökkő ppányi-erdő

17/05/201 3; 18/06/2013; 22/09/201 3 17/04/201 3; 19/09/2013; 28/09/2013 09/05/201 3; 28/05/2013; 04/07/2013; 25/07/2013; 15/09/2013; 19/09/2013 07/05/2013; 29/07/2013; 30/08/2013

25/04/2013; 30/04/2013; 15/06/2013; 17/06/2013; 19/08/2013; 02/09/2013 23/04/2013; 29/06/2013; 15/08/2013 15/05/2013; 22/07/2013; 27/08/2013 22/04/2013; 05/06/2013; 09/08/2013 08/05/2013; 13/07/2013; 18/09/2013