Conclusions
Our results substantiate species-level genomic divergences betweenS. atlantis , S. hesperis , and S. nausicaa , and
analyses using ENMs and landscape resistance surfaces have enabled us to
attribute the maintenance of genomic integrity in each of these lineages
to a likely mechanism - ecologically-based divergent selection. In
addition to our results, we suggest that there is great opportunity to
build on this approach in subsequent systematic work. In particular, the
incorporation of ecological modelling in genetic species delimitations
may be used to reciprocally inform Bayesian priors for phylogeographic
and multispecies coalescent-based modelling. Such an integration of
genetic and ecological analyses should be particularly useful for
species delimitations that have conservation impacts or high visibility
in citizen science, and could be readily integrated into a conservation
framework that links genomic divergence to ecological distinctiveness,
informing prioritization of habitat and biodiversity management. This
multidisciplinary method of species delimitation is thus positioned to
contribute to stable taxonomies, delimit meaningful biodiversity units
for conservation, and characterize extrinsic factors that influence
patterns of lineage diversification in a broad range of taxa.