Plethodontid salamanders of the Ensatina eschscholtzii complex have received special attention from evolutionary biologists because they represent one of the very few examples of a ring species, a case where two reproductively isolated forms are connected by a chain of intergrading populations surrounding a central geographic barrier. Ensatina has become a textbook example of speciation, yet there still remain fundamental gaps in our knowledge of this fascinating system. In this study, consisting of three components, I extend previous work on the Ensatina complex in new directions. In Chapter 1, I conducted a fine-scale genetic analysis of a hybrid zone between the geographically terminal forms of the ring using Bayesian methods for hybrid ...
Graduation date: 2005Plethodontid salamanders are model organisms for studying evolutionary\ud quest...
When evolutionarily divergent lineages adjoin their geographic ranges after a period of isolation, m...
Repeated hybridization between incipient lineages is a common feature of ecological speciation and e...
The analysis of interactions between lineages at varying levels of genetic divergence can provide i...
Abstract Background Ring species, exemplified by salamanders of the Ensatina eschscholtzii complex, ...
Sequences (644-681 bp) from the mitochondrial cytochrome b gene were obtained for 24 individuals rep...
Many species of plethodontid salamanders exist as complexes of genetically fragmented, parapatricall...
BACKGROUND Ring species, exemplified by salamanders of the Ensatina eschscholtzii complex, represent...
Aim: Phylogeographical structure in the black salamander (Aneides flavipunctatus) was inferred using...
The salamander Ensatina eschscholtzii Gray is a classic example of a ring species, or a species that...
Numerous mechanisms drive ecological speciation, including isolation by adaptation, barrier, distanc...
Dusky Salamanders (genus Desmognathus) currently comprise only 22 described, extant species. However...
Understanding the biotic consequences of Pleistocene range shifts and fragmentation remains a fundam...
Contact zones present unique opportunities to investigate ecological divergence, reproductive barrie...
Ecological models predict that, in the face of climate change, taxa occupying steep altitudinal grad...
Graduation date: 2005Plethodontid salamanders are model organisms for studying evolutionary\ud quest...
When evolutionarily divergent lineages adjoin their geographic ranges after a period of isolation, m...
Repeated hybridization between incipient lineages is a common feature of ecological speciation and e...
The analysis of interactions between lineages at varying levels of genetic divergence can provide i...
Abstract Background Ring species, exemplified by salamanders of the Ensatina eschscholtzii complex, ...
Sequences (644-681 bp) from the mitochondrial cytochrome b gene were obtained for 24 individuals rep...
Many species of plethodontid salamanders exist as complexes of genetically fragmented, parapatricall...
BACKGROUND Ring species, exemplified by salamanders of the Ensatina eschscholtzii complex, represent...
Aim: Phylogeographical structure in the black salamander (Aneides flavipunctatus) was inferred using...
The salamander Ensatina eschscholtzii Gray is a classic example of a ring species, or a species that...
Numerous mechanisms drive ecological speciation, including isolation by adaptation, barrier, distanc...
Dusky Salamanders (genus Desmognathus) currently comprise only 22 described, extant species. However...
Understanding the biotic consequences of Pleistocene range shifts and fragmentation remains a fundam...
Contact zones present unique opportunities to investigate ecological divergence, reproductive barrie...
Ecological models predict that, in the face of climate change, taxa occupying steep altitudinal grad...
Graduation date: 2005Plethodontid salamanders are model organisms for studying evolutionary\ud quest...
When evolutionarily divergent lineages adjoin their geographic ranges after a period of isolation, m...
Repeated hybridization between incipient lineages is a common feature of ecological speciation and e...