Figure 2.

Phylogenetic relationships of water vole samples: Bayesian tree constructed in MrBayes. Nodal support is shown through approximate Bayesian probabilities (only values above 50% shown). AMS dates are given as the median calibrated year BP. Southern water vole used as the outgroup (not shown). Sample location written entirely in uppercase = data taken from Piertney et al. [15]; all other data are from this study and 1st number = unique sample identifier, followed by sample location and time period, where blue = Pleistocene (more than 10 kyr BP, oldest dated sample 27 kyr BP), pink = archaeological Holocene (10 kyr BP to 100 yr BP), black = recent/museum samples (100 yr to present). Green star denotes that the sample is directly referred to in the text.