Spatiotemporal pattern in the autumn invasion behaviour of the common pipistrelle, Pipistrellus pipistrellus: review with a case study

Publication date: Available online 27 April 2019Source: Mammalian BiologyAuthor(s): Gréta Nusová, Miroslav Fulín, Marcel Uhrin, Dalibor Uhrovič, Peter KaňuchAbstractCommon pipistrelle bats are known for their autumn or late-summer invasions, when temporary groups of individuals fly into inhabited buildings in urban areas. This specific display has been reported since 1862. In this review, we collected all available records and analysed their spatiotemporal pattern within the species range with regard to the numbers and structure of individuals involved in such invasions (in total 1,025 invasions from 51 publications and almost 80 unpublished or own records). We found that invasions occurred mostly in Central European towns in Slovakia, Czechia and Germany between 48 and 55 degrees of northern latitude, mainly during the late decades of 20th century. Although the majority of invasions occurred just once or twice at a site and involved only dozens of individuals, sites that were repeatedly invaded also exhibited a higher number of bats involved (hundreds of individuals). The reviewed data suggest that predominantly young animals without sex bias took part in the invasions. A special emphasis was put on the city of Košice, Slovakia, where invasions repeated annually since 1996, mostly in August and September, while bats altered the invasion sites during the analysed period. However, the number of invasions and invading individuals was related to the number of bats hibernat...
Source: Mammalian Biology - Category: Biology Source Type: research