Influence of the microclimate of bat boxes on their occupation by the soprano pipistrelle Pipistrellus pygmaeus: possible cause of roost switching.

Investor logo

Warning

This publication doesn't include Faculty of Arts. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

BARTONIČKA Tomáš ŘEHÁK Zdeněk

Year of publication 2007
Type Article in Periodical
Magazine / Source Acta Chiropterologica
MU Faculty or unit

Faculty of Science

Citation
Field Zoology
Keywords Pipistrellus pygmaeus roost changing microclimate bat boxes
Description Between April and October 2003 - 2004, the changes in occupation of three bat boxes used by Pipistrellus pygmaeus were studied using a passive infrared (IR) monitors and data loggers. Bat boxes were situated in a floodplain forest in south-eastern Moravia. Generalized additive models indicated that internal relative humidity described better the fluctuation in bat numbers during pregnancy and lactation than did changes in the internal temperature. Three variables (internal humidity, external temperature, and number of bats) described 87% of the variability in internal roost temperature, while the number of bats described only 29% of the variability. A negative correlation was found between the internal temperature and the number of bats roosting in a bat box the next day during pregnancy and lactation. The number of bats was also positively correlated with the internal relative humidity. The internal temperature of a roost with bats was biased by thermoregulation strategies induced by the bats during particular reproductive periods. Mean temperature of occupied bat boxes was higher during pregnancy than during lactation.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.