FULL COMMUNICATIONS ANIMAL ECOLOGY Subsidiary adaptations: climbing techniques in vespertilionid bats Olga Emelianova1, Aleksandra Panyutina2, Ksenia Morozova1, Yakov Davidov1, Maria Kovalenko1, Daria Kalacheva1, and Anastasia Shvyrkova1 1Faculty of Biology, M. V. Lomonosov Moscow State University, Vorobjevy Gory, 1/12, Moscow, 119991, Russian Federation 2A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskij Prospekt, 33, 119071, Moscow, Russian Federation Address correspondence and requests for materials to Aleksandra Panyutina,
[email protected] Abstract The quadrupedal locomotion of bats still remains almost unexplored. Mean- while, in the life of many species, this type of movement plays an important role. This paper presents the study of characteristics of quadrupedal locomotion on vertical surfaces in bats. We provide the results of the analysis of climbing of five vespertilionid species. The study is based on high-speed video recording of locomotion in two planes in an experimental enclosure on various substrates (the bark of five tree species and the inner surface of the manufactured nest box for bats). For comparison, we used data on horizontal locomotion obtained using the same experimental facilities, as well as all available literature data to date. The time, metric and velocity characteristics of the movement of different species representatives are determined. We show how these characteristics Citation: Emelianova, O., Panyutina, A., are interrelated and how they differ in walking or climbing. The study compar- Morozova, K., Davidov, Y., Kovalenko, M., ing walking vs. climbing was performed for the second time ever. It is shown Kalacheva, D., and Shvyrkova, A. 2019. Subsidiary adaptations: climbing techniques that while climbing, bats retain the same limb sequence, but the gait is not a in vespertilionid bats.