Ábrahám Levente: Biomonitoring a Dráva folyó magyarországi szakasza mentén 2000-2004 - Natura Somogyiensis 7. (Kaposvár, 2005)

Dombi, Imre: Bat monitoring along the Drava River (Mammalia: Chiroptera) - Denevér-monitoring a Dráva mentén (Mammalia: Chiroptera)

DOMBI I.: BAT MONITORING ALONG THE DRAVA VALLEY 149 Results During the 5 monitoring years so far the presence of 17 bat species has been proved in the observed area. It is 61% of the 28 officially recorded as occurring national species that is very promising. Moreover, a new long-eared species, Plecotus macrobullaris was also successfully identified. The latter is just a presumption, since identification is not always unequivocal in the field, proof can only be given after genetic examinations. It was indicated as Plecotus sp. at the data collection. Identified species are shown in Table 1. indicating the method with which their presence was proved. Table 1.: The species of bat fauna with sampling methods Species Mist-net Detector In building Daubenton's bat (Myotis daubentoni) X X Pond bat {Myotis dasycneme ) X Bechstein's bat {Myotis bechsteini ) X (X) Natterer's bat {Myotis nattereri ) X X Whiskered bat {Myotis mystacinus ) X (X) Brandt's bat {Myotis brandti) X (X) Greater mouse-eared bat {Myotis myotis ) X X X Lesser mouse-eared bat {Myotis blythi ) X Noctule bat {Nyctalus noctula ) X X Leisler's bat {Nyctalus leisleri ) X X Serotine bat {Eptesicus serotinus ) X X X Sopran pipistrelle bat {Pipistrellus pygmeus ) X X Common pipistrelle {Pipistrellus pipistrellus ) X X X Nathusius' pipistrelle bat {Pipistrellus nathusii ) X X Long-eared bat {Plecotus auritus ) X (X) Grey long-eared bat {Plecotus austriacus ) X (X) X Plecotus sp. X Barbastelle bat {Barbastella barbastellus ) X X The table well indicates that the nets or the detector are both very important in identifying different species, as two of them, the Pond bat {Myotis dasycneme) and the Nathusius' pipistrelle bat {Pipistrellus nathusii) were only identifiable using detectors. Those bats that were difficult to identify with detector [marked (X)] netting was ascertaining. Table 2. shows the species identified in the different sampling areas. It is visible that the most number of species was observed in Babócsa and in the Lankóci forest, but the other areas are also very abundant in species. More important is the fact that in all four areas the presence and reproduction of at least two endangered, habitat-specific species were justified. The high number of species and the presence of the rare ones indicate that the habitat features in the sampling areas are very good, their condition is near-natural.