Data from: Sympatric parasites have similar host-associated, but asynchronous, patterns of diversification

Parasitism is a common symbiotic interaction across diverse natural
systems. Using a comparative evolutionary approach, we investigated the
contributions of both host phylogeny and abiotic factors towards
diversification of phylogenetically independent endoparasites that inhabit
essentially the same physical space. We tested for host-parasite and
parasite-parasite phylogenetic concordance in western North American
chipmunks (Rodentia: Sciuridae) and two distantly related species of
pinworms (Nematoda: Oxyurida). Deep structure in molecular phylogenies
revealed signals of host-associated divergence in both parasite species,
while shallower phylogeographic structure varied between the two
parasites. This suggests that although these parasites experienced similar
landscapes and cyclic climate processes, temporally distinctive
diversification events were associated with differences in the initiation
of their association with host lineages. When climate cycles initiate
diversification, partially congruent, but asynchronous host-associated
parasite phylogenies may emerge.