Evening and morning activity schedules of the noctule bat (Nyctalus noctula) in Western Carpathians
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Peter Kaňuch
Abstract
Evening emergence and dawn return of the noctule bat (Nyctalus noctula) were visually observed directly at the day roosts in Central Slovakia (in 2002 and 2003). The timing of emergence from, and return to, the roosts relative to the times of sunset, sunrise and civil twilight (evening and morning) was analysed. To determine the influence of external and internal factors on activity schedules, four comparisons were performed (the influence of the extent of roost illumination, reproductive status and air temperature and colony size). The evening emergence from, and the morning return to, the roosts of noctules were concentrated in the period between sunset and civil twilight, and between civil twilight and sunrise, respectively. On average, bats started leaving the tree hollows 11 min after sunset. The mean time of the start of the morning return was coincident with the time of morning civil twilight. No significant relationships between the other selected factors and activity schedules were found. Several behavioural displays were recorded during visual observations of dawn swarming.
©2007 by Walter de Gruyter Berlin New York
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Articles in the same Issue
- Meetings
- An updated, annotated checklist of the marine mammals of Hong Kong
- Population biology and monitoring of the Cuban hutia at Guantanamo Bay, Cuba
- Individual recognition in Callosciurus finlaysonii (Horsfield, 1824) (Rodentia, Sciuridae) introduced into Italy
- Evening and morning activity schedules of the noctule bat (Nyctalus noctula) in Western Carpathians
- Daily activity period, home range and sleeping sites of golden lion tamarins (Leontopithecus rosalia) translocated to the União Biological Reserve, RJ-Brazil
- Bat road casualties and factors determining their number
- Putting names to the phylogenetic diversity of Neotropical sigmodontine rodents: new genera for known species
- Record of a seventeenth species of shrew (Soricomorpha: Soricidae) from the Dzanga-Sangha Reserve, Central African Republic
- Observations of an Indo-Pacific humpback dolphin carrying a sponge: object play or tool use?
