Research
Most of my research has dealt with four broad areas:
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1)the factors leading to the evolution of new species,
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2)the effects of sexual selection on phenotypic and genetic diversity,
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3)the maintenance, loss, and evolution of polymorphism, and
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4)the genetic basis of adaptive phenotypes in wild populations.
In general, I have worked to link microevolutionary selective processes observed within species to macroevolutionary patterns of diversification. The majority of my research has been done on lizards, particularly on a species that exhibits substantial phenotypic diversity within and among populations. However, I have done research projects on birds and amphibians. The links below provide more details about my research projects.
Speciation
The role of polymorphism in speciation
The buildup of reproductive isolation between divergent populations
Sexual selection
The genomic signature of sexual selection
The evolution of sexual dimorphism
Polymorphism
The maintenance of polymorphism
Genetics of Polymorphism
The genetic basis of polymorphic mating systems
Other Research
Fitness and evolution of sociality in the lizard
Adaptive divergence of Lacertid lizards