Noah M. Reid

TL;DR: Researchers should apply a wide range of species delimitation analyses to their data and place their trust in delimitations that are congruent across methods, for in most contexts it is better to fail to delimit species than it is to falsely delimit entities that do not represent actual evolutionary lineages.

TL;DR: This paper presents a Bayesian implementation of an evolutionary model-based method, the general mixed Yule-coalescent model (GMYC), which integrates over the parameters of the model and uncertainty in phylogenetic relationships using the output of widely available phylogenetic models and Markov-Chain Monte Carlo simulation in order to produce marginal probabilities of species identities.

TL;DR: High genetic diversity in killifish seems to allow selection to act on existing variation, driving rapid adaptation to selective forces such as pollution, and the aryl hydrocarbon receptor–based signaling pathway is identified as a shared target of selection.

TL;DR: Overall, these data indicate that introgression has had a minimal impact on the nuclear genomes of T. amoenus and T. ruficaudus despite multiple independent hybridization events, and suggest that there may be other examples of hybridization among the 23 species of Tamias that occur in western North America.

TL;DR: It is suggested that interspecies connectivity may be an important source of adaptive variation during extreme environmental change.