Additional file 1 of Bat population recoveries give insight into clustering strategies during hibernation

Additional file 1 Number of bats surveyed in the Bull Rock Cave hibernaculum between 1977 and 2018. The table shows the total number of Myotis myotis (Mmyo) and Rhinolophus hipposideros (Rhip) hibernating in the cave each year. Data on other species are available for a subset of years, including those from [43]. Mdau = Myotis daubentonii, Mdas = Myotis dasycneme, Mema = Myotis emarginatus, Mnat = Myotis nattereri, Mmys = Myotis mystacinus, Mbech = Myotis bechsteinii, Mbra = Myotis brandtii, Ppip = Pipistrellus pipistrellus, Bbar = Barbastella barbastellus, Paur = Plecotus auritus, Paus = Plecotus austriacus, Nnoc = Nyctalus noctula, Eser = Eptesicus serotinus, Date = survey date, awssi.winter = Accumulative Winter Season Severity Index [70] on the date surveyed (w), sampling.winter = duration of winter up to the survey date (d).