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Articles

Flight activity of serotine Eptesicus serotinus on organic and conventional farms in central Poland

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Pages 93-96 | Received 30 Jan 2013, Accepted 18 Mar 2013, Published online: 09 Jun 2013
 

Abstract

A study, conducted on five pairwise selected farms (organic and conventional) in central Poland revealed higher flight activity (including foraging) of the serotine Eptesicus serotinus on organic farms. The median time in which bats were recorded by an ultrasound detector was ca. twice longer on organic farms as compared to conventional farms, with statistically important differences for sites situated close to farm buildings. On organic farms, bat activity was higher in housing zones as compared to open fields. Organic farming can improve foraging areas for serotines in the agricultural landscape.

Penkiuose ekologiniuose ir penkiuose tradiciniuose ūkiuose centrinėje Lenkijos dalyje ultragarsiniais detektoriais atlikti tyrimai parodė didesnį vėlyvojo šikšnio (Eptesicus serotinus) skraidymo ir maitinimosi aktyvumą ekologiniuose ūkiuose – vidutinė aktyvumo trukmė juose buvo beveik dvigubai ilgesnė. Statistiškai reikšmingi skirtumai nustatyti arti pastatų esančiose vietose. Vėlyvųjų šikšnių aktyvumas buvo didesnis arti pastatų esančiose vietose nei ekologinių ūkių laukuose. Ekologiškas ūkininkavimas gali pagerinti šių šikšnosparnių maitinimosi sąlygas agrokultūriniame landšafte.

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