Morphological Differentiation in Ouachita Mountain Endemic Salamanders

@inproceedings{Shepard2011MorphologicalDI,
  title={Morphological Differentiation in Ouachita Mountain Endemic Salamanders},
  author={Donald B Shepard and Kelly J. Irwin and Frank T. Burbrink},
  year={2011}
}
Abstract Morphology of some groups of organisms has been highly conserved over evolutionary time, resulting in genetically divergent taxa with relatively little morphological variation. Genetic studies on salamanders of the genus Plethodon have revealed a high level of morphologically cryptic diversity, and recent ecological and evolutionary studies have suggested that morphology may be informative for taxonomic purposes when combined with genetic data. We examined morphological variation in… Expand
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References

SHOWING 1-10 OF 49 REFERENCES
Patterns of differential introgression in a salamander hybrid zone: inferences from genetic data and ecological niche modelling
TLDR
Modelling results suggest that hybrid zone position is not determined by steep gradients in climatic suitability for either species, instead, the hybrid zone lies in a climatically homogenous region that is broadly suitable for both P. jordani and P. metcalfi. Expand
PROBLEMS WITH SPECIES: PATTERNS AND PROCESSES OF SPECIES FORMATION IN SALAMANDERS1
TLDR
Analysis of patterns of genetic differentiation in allozymes and mtDNA in relation to the geological history of California is used to generate biogeographic scenarios to help explain the contrast between Batrachoseps and Ensatina. Expand
Morphometric Analysis of Salamanders of the Plethodon vandykei Species Group
TLDR
The results support the long contested taxonomic validity of P. vandykei and P. idahoensis, and indicate that detailed morphometric analyses can be useful in evolutionary studies of Plethodon. Expand
Speciation in Eastern North American Salamanders of the Genus Plethodon
TLDR
It is hypothesized that the arid climates of the Pliocene isolated many populations in wetter forested areas where in isolation allopatric speciation occurred, and with the return of wetter climates, many of these species dispersed and a large number of parapatric contact zones may now be studied where closely related species are interacting. Expand
Morphology is Decoupled from Interspecific Competition in Plethodon Salamanders in the Shenandoah Mountains, USA
TLDR
Observations suggest that morphological variation is decoupled from ecological interactions in this system, and aggressive interactions between the two species do not elicit a phenotypic response as seen in other Plethodon communities. Expand
COMPARISON OF THE SYMBIOTIC FAUNA OF THE FAMILY PLETHODONTIDAE IN THE OUACHITA MOUNTAINS OF WESTERN ARKANSAS
TLDR
Hannemania dunni and Thelandros magnavulvularis and H. dunni were the most commonly occurring parasites, found in five and four host species respectively. Expand
PHYLOGENETIC ANALYSIS OF ECOMORPHOLOGICAL DIVERGENCE, COMMUNITY STRUCTURE, AND DIVERSIFICATION RATES IN DUSKY SALAMANDERS (PLETHODONTIDAE: DESMOGNATHUS)
TLDR
The results suggest that rates of diversification during adaptive radiation are intimately linked to the degree to which community structure persists over evolutionary time. Expand
Organization of Plethodon salamander communities: guild-based community assembly.
A long-standing goal in evolutionary ecology is to determine whether the organization of communities is reflective of underlying deterministic processes. In this study, I examined patterns of speciesExpand
VICARIANCE BIOGEOGRAPHY, PARSIMONY, AND EVOLUTION IN NORTH AMERICAN FRESHWATER FISHES
The North American freshwater fish fauna exhibits considerable species diversity and patterns of endemism. The fauna has enormous potential for use in investigations and tests of biogeographic andExpand
Delimiting species using DNA and morphological variation and discordant species limits in spiny lizards (Sceloporus).
TLDR
This paper compares species limits inferred from three approaches for species delimitation, using morphological and mtDNA data for the Yarrow's spiny lizard (Sceloporus jarrovii), a traditionally polytypic species from the southwestern United States and Mexico, and finds the greatest support for the five species that are delimited based on mt DNA data. Expand
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