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Prehranjevalni vzorci, raba prostora in ekološke značilnosti kotišča porodniške kolonije navadnega netopirja (Myotis myotis) v cerkvi v Spodnji Polskavi
Zamolo, Aja (Author), Kos, Ivan (Mentor) More about this mentor... This link opens in a new window, Potočnik, Hubert (Co-mentor)

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Abstract
Navadnega netopirja (Myotis myotis) v Sloveniji najbolj ogroža uničevanje kotišč, medtem ko so ostali dejavniki, slabo poznani. Za analizo stanja vrste na nekem območju je ključno poznavanje populacijskega trenda. Eden izmed pomembnih, a pogosto spregledanih dejavnikov, ki vpliva na populacijsko dinamiko, je razpoložljivost prehranjevalnih habitatov. Z radiotelemetričnim spremljanjem navadnih netopirjev iz zatočišča v cerkvi sv. Štefana na Spodnji Polskavi smo skušali določiti vzorce v izbiri prehranjevališč navadnih netopirjev glede na rabo tal v okolici zatočišča. Hkrati smo spremljali mikroklimatske lastnosti samega kotišča s pomočjo avtomatskih beležnikov temperature in relativne vlage ter ugotavljali druge splošne značilnosti kotišča. Razlike med pričakovano in dejansko rabo tal so bile statistično značilne, kar kaže na selektivno izbiro prehranjevalnih habitatov, predvsem gozda. S tem smo potrdili hipotezo, da bo prednostno prehranjevalno območje netopirjev v listopadnih gozdovih z malo podrasti. Na primeru šestih spremljanih netopirjev je bil na prehranjevališčih najpogostejši gozd (40 %), sledile so njive (35,9 %) in trajni travniki (13,8 %). Gozd je bil v 67 % prehranjevališč prevladujoč habitatni tip, od teh je v devetih primerih predstavljal več kot 50 % površine prehranjevališča. S spremljanjem mikroklimatskih razmer smo potrdili hipotezo, da temperaturne razmere kotišča sicer sledijo zunanjim spremembam, vendar je kotišče značilno toplejše. Zbrani podatki predstavljajo dobro izhodišče za oblikovanje smernic za upravljanje tako z zatočiščem kot njegovo okolico.

Language:Slovenian
Keywords:prehranjevalni vzorci, raba prostora, ekološke značilnosti, radiotelemetrično spremljanje, navadni netopir, Myotis myotis, vzhodna Slovenija
Work type:Master's thesis/paper (mb22)
Organization:BF - Biotechnical Faculty
Year:2017
COBISS.SI-ID:4482383 This link opens in a new window
Views:769
Downloads:450
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Secondary language

Language:English
Title:Feeding patterns, habitat use and ecological characteristics of the roost of the nursery colony of the greater mouse-eared bat (Myotis myotis) in a church in Spodnja Polskava
Abstract:
The greater mouse-eared bat (Myotis myotis) in Slovenia is endangered mainly by destruction of roosts, while other factors are poorly known. For analysis of the state the species in a given area is in, it is crucial to know its population trend. One of the important but very often neglected factors that influence population dynamics is the availability of feeding habitats. By using radio telemetry on greater mouse-eared bats from the roost in the church sv. Štefan in Spodnja Polskava (SE Slovenia) we investigated their feeding patterns considering different land uses in the vicinity of the roost. Moreover, we collected data on microclimatic conditions within the roost using data-loggers, as well as other roost characteristics. Differences between the expected and realized habitat uses were significant, which points to selective use of feeding habitats, especially forests. Our results supported the hypothesis that bats will select for deciduous woodlands with little undergrowth. Land use categories that were most frequent among the feeding locations were forest (40 %), followed by fields (35,9 %) and permanent meadows (13,8 %). In 67 % of feeding locations, forest was the main habitat type, in nine occasions it covered more that 50 % of the surface. Results on microclimatic conditions supported the hypothesis that temperatures of the roost follow the ones outside, but they were significantly higher. We used collected data as a basis to propose the guidelines for managing the roost as well as the surrounding habitats.

Keywords:feeding patterns, habitat use, ecological characteristics, Greater mouse-eared bat, Myotis myotis, Eastern Slovenia

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