| a cryptic new species of indigo snake (genus drymarchon) from the florida platform of the united states. | indigo snakes (genus drymarchon) occur from northern argentina northward into to the united states, where they inhabit southern texas and disjunct populations in mississippi, florida and georgia. based on allopatry and morphological differences collins (1991) hypothesized that the two united states taxa-the western indigo snake, d. melanurus erebennus (cope, 1860), and the eastern indigo snake, d. couperi (holbrook, 1842)-deserved full species recognition. building upon this hypothesis with mole ... | 2016 | 27470779 |
| the influence of sex and season on conspecific spatial overlap in a large, actively-foraging colubrid snake. | understanding the factors influencing the degree of spatial overlap among conspecifics is important for understanding multiple ecological processes. compared to terrestrial carnivores, relatively little is known about the factors influencing conspecific spatial overlap in snakes, although across snake taxa there appears to be substantial variation in conspecific spatial overlap. in this study, we described conspecific spatial overlap of eastern indigo snakes (drymarchon couperi) in peninsular fl ... | 2016 | 27490346 |
| pliocene-pleistocene lineage diversifications in the eastern indigo snake (drymarchon couperi) in the southeastern united states. | indigo snakes (drymarchon; with five currently recognized species) occur from northern argentina, northward to the united states in southern texas and eastward in disjunct populations in florida and georgia. based on this known allopatry and a difference in supralabial morphology the two united states taxa previously considered as subspecies within d. corais (boie 1827), the western indigo snake, d. melanurus erebennus (cope 1860), and eastern indigo snake, d. couperi (holbrook 1842), are curren ... | 2016 | 26778258 |