Table S1 Location, elevation and predation risk in the 48 Rana temporaria populations included in this study.

Figure S1 Map illustrating the locations of the 48 Rana temporaria populations in northern Switzerland from which genetic samples were collected and in which the density of predators was sampled.

Figure S2 Frequency distribution of predation risk estimates in study area ponds partway through the larval period of Rana temporaria between 1997 and 2003.

Figure S3 Isolation by distance among 48 populations of Rana temporaria in northern Switzerland.

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