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Amazonian Amphibian Diversity Is Primarily Derived from Late Miocene Andean Lineages
(East Carolina University, 2009-03)
The Neotropics contains half of remaining rainforests and Earth’s largest reservoir of amphibian biodiversity. However, determinants of Neotropical biodiversity (i.e., vicariance, dispersals, extinctions, and radiations) ...
Adaptive evolution of genes underlying schizophrenia
(East Carolina University, 2007-11-22)
Schizophrenia poses an evolutionary-genetic paradox because it exhibits strongly negative fitness effects and high heritability, yet it persists at a prevalence of approximately 1% across all human cultures. Recent theory ...
Variation in pigmentation gene expression is associated with distinct aposematic color morphs in the poison frog Dendrobates auratus
(2019-04-18)
Abstract
Background
Color and pattern phenotypes have clear implications for survival and reproduction in many species. However, the mechanisms that produce this coloration ...
Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation
(2014)
Background
Polytypism in aposematic species is unlikely according to theory, but commonly seen in nature. Ranitomeya imitator is a poison frog species exhibiting polytypic mimicry of three congeneric model species (R. ...
Phenotypic and Genetic Divergence among Poison Frog Populations in a Mimetic Radiation
(2013)
The evolution of Müllerian mimicry is, paradoxically, associated with high levels of diversity in color and pattern. In a mimetic radiation, different populations of a species evolve to resemble different models, which can ...
Evidence for acquisition of virulence effectors in pathogenic chytrids
(2011)
Background
The decline in amphibian populations across the world is frequently linked to the infection of the chytrid fungus Batrachochytrium dendrobatidis (Bd). This is particularly perplexing because Bd was only recently ...
Molecular phylogenetic evidence for a mimetic radiation in Peruvian poison frogs supports a Müllerian mimicry hypothesis.
(East Carolina University, 2001-12-07)
Examples of Müllerian mimicry, in which resemblance between unpalatable species confers mutual benefit, are rare in vertebrates. Strong comparative evidence for mimicry is found when the colour and pattern of a single ...
The evolution of parental care and egg size: a comparative analysis in frogs
(East Carolina University, 2006-03-22)
The evolution of parental care and egg size has attracted considerable attention and theoretical debate. Several different hypotheses have been proposed concerning the trajectories of parental care and egg size evolution ...