Data and code from: Landscape-driven isolation among, but high genetic diversity within, peripheral populations of a threatened frog

This data and code were used in a conservation genetics study of
Blanchard’s Cricket Frog (Acris blanchardi; BCF) at the species’ northern
range edge. We assessed genetic diversity, population structure, and
landscape genetics across the southern Lower Peninsula of Michigan. We
genotyped 777 frogs from 41 sites using 14 microsatellite markers. We ran
the population assignment algorithm, STRUCTURE, to infer genetic
populations and admixture. Twenty distinct genetic populations were found
across Michigan sites. We evaluated the effects of landscape features,
including geographic distance, on pairwise genetic distances we calculated
for all pairwise combinations between sampled sites. The perceptual range
of BCF is unknown, and landscape features can have different scales of
effect, so we modelled landscape effects on genetic differentiation at
different scales. Pairwise geographic distances, pairwise genetic
distances, and various landscape composition and configuration variables
quantified within pairwise landscape strips are included, but specific
site coordinates are excluded due to the conservation status of BCF in
Michigan. These are the code and data associated with the article
“Landscape-driven isolation among, but high genetic diversity within,
peripheral populations of a threatened frog” in the journal, Diversity and
Distributions. These files offer groundwork for further assessment of
landscape effects on BCF via different modelling methods, and offer a
baseline for future assessments.