Influence of ambient temperature on the phenology of the greater mouse-eared bat (Myotis myotis)

In order to assess the consequences of climate change and evaluate its impacts on wildlife, it is essential to do so on a species-specific level. It is assumed that changes in the ambient temperature influence energy consumption as well as food availability and thus foraging behaviour, reproduction, survival and therefore population dynamics in bats. Based on this assumption, the present study aims to gain insights into the roosting and breeding behaviour of the greater mouse-eared bat (Myotis myotis) in relation to changes of the ambient temperature. For this purpose, we investigated the effect of ambient temperature on the phenology of the greater mouse-eared bat by using activity data of the bats collected using light barriers at the maternity roosts. The light barrier used in this study is a system that detects the interruption of two light beams, e.g. by a flying bat, and displays it as an electrical signal. The investigations have shown that (1) the higher the winter temperatures,..., The present data set was recorded with the help of light barriers in greater mouse-eared bat roosts. The data were processed using Excel and R Studio., The present data set can be opened using Excel.