Figure Legends

Figure 1 – Map of the five sampled mountain ranges in Ethiopia presented over a digital elevation model with the location of the Rift Valley marked with red stripes. The insert shows the location of Ethiopia in eastern Africa.
Figure 2 – Projected probability of occurrence forPlecotus balensis across the horn of Africa based on ecological niche modelling outputs for a) present; b) past (Last Glacial Maximum, ~21K ya); c) future (2070) severe emissions scenario (RCP 8.5); and d) future (2070) moderate emissions scenario (RCP 4.5) climatic conditions. Probability of occurrence ranges from high in orange to low in blue; stars denote the location of mountain ranges sampled in this study.
Figure 3 – Plecotus balensis genetic population structure: a) colour-coded mountain ranges sampled in the study; b) Bayesian phylogenetic tree based on the combined cytb and HVI mtDNA regions, with Plecotus austriacus as an outgroup and showing branch support >0.8; c) results of the STRUCTURE analysis dividing the microsatellite dataset into two population clusters, south (yellow) and north (green) of the Rift Valley; and d) haplotype network based on the combined cytb and HVI mtDNA regions, indicating number of mutation steps.
Figure 4 – Projected movement density based on the effect of altitude (a) and ecoregions (b) on genetic connectivity betweenPlecotus balensis population.