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A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus
This work provides the largest-yet estimate of the snake tree of life using maximum likelihood on a supermatrix of 1745 taxa (1652 snake species + 7 outgroup taxa) and 9,523 base pairs from 10 loci (5 nuclear, 5 mitochondrial), including previously unsequenced genera and species. Expand
Ecological divergence in the yellow-bellied kingsnake (Lampropeltis calligaster) at two North American biodiversity hotspots.
This work uses a multilocus statistical phylogeographic approach to examine diversity within a North American snake, Lampropeltis calligaster, and shows that species divergence is associated with the ecological transition from distinct forested habitats to grasslands, rather than the nearby Mississippi River, a barrier often implicated for many other organisms. Expand
Biogeographic barriers, Pleistocene refugia, and climatic gradients in the southeastern Nearctic drive diversification in cornsnakes (Pantherophis guttatus complex)
A genomic data set for the cornsnakes (Pantherophis guttatus complex) is generated and it is suggested that numerous drivers of population differentiation explain the current diversity of this group of snakes. Expand
Predicting community structure in snakes on Eastern Nearctic islands using ecological neutral theory and phylogenetic methods
It is found that simple neutral models following UNTB and ETIB predict the structure of island communities, and community structure appears to be ecologically neutral and abundance on the mainland is the best predictor of presence on islands. Expand
The phylogenetic position and taxonomic status of the Rainbow Tree Snake Gonyophis margaritatus (Peters, 1871) (Squamata: Colubridae) .
This work evaluates the taxonomic status of a rare Southeast Asian serpent, the Rainbow Tree Snake Gonyophis margaritatus (Squamata: Colubridae), by inferring a molecular phylogeny of 101 snake species and discusses three potential solutions towards eliminating polyphyly of the genus Rhadinophis. Expand
First record of ophiophagy in the widely distributed snake Leptodeira septentrionalis (Kennicott, 1859) (Ophidia, Colubridae)
Observations of consumption of a fossorial snake and frog suggest L. septentrionalis may be an opportunistic species, foraging in trees as well as on the ground and consuming any suitably sized prey encountered. Expand
Resolving spatial complexities of hybridization in the context of the gray zone of speciation in North American ratsnakes (Pantherophis obsoletus complex)
This research underscores how incomplete reproductive isolation can be better understood by considering differential allelic introgression and the effects of historical and contemporary landscape features on the formation of lineages as well as overall genomic estimates of migration rates through time. Expand
A new non-coastal record for the Pine Woods Littersnake, Rhadinaea flavilata Cope, 1871 (Squamata: Colubridae), in Russell County, Alabama, USA
We found a single specimen of Rhadinaea flavilata in Russell County, Alabama, in an area composed of primarily pine plantation habitat. This record is 200 km north of the currently recognized rangeExpand
Ecological divergence across two North American biodiversity hotspots in the Yellow- Bellied Kingsnake (Lampropeltis calligaster)
Several biogeographic barriers in the Eastern Nearctic appear to reduce gene flow among populations of many species in predictable ways, however these patterns used to infer process of divergence mayExpand