Rapid Color Evolution in an Aposematic Species: A Phylogenetic Analysis of Color Variation in the Strikingly Polymorphic Strawberry Poison-dart Frog

  title={Rapid Color Evolution in an Aposematic Species: A Phylogenetic Analysis of Color Variation in the Strikingly Polymorphic Strawberry Poison-dart Frog},
  author={Ian J. Wang and H. Bradley Shaffer},
  booktitle={Evolution; international journal of organic evolution},
Abstract Aposematism is one of the great mysteries of evolutionary biology. The evolution of aposematic coloration is poorly understood, but even less understood is the evolution of polymorphism in aposematic signals. Here, we use a phylogeographic approach to investigate the evolution of color polymorphism in Dendrobates pumilio, a well-known poison-dart frog (family Dendrobatidae), which displays perhaps the most striking color variation of any aposematic species. With over a dozen color… 

An Analysis of Predator Selection to Affect Aposematic Coloration in a Poison Frog Species

It is concluded that conspicuousness honestly indicates toxicity to avian predators and the different coloration patterns among populations of strawberry poison frogs in combination with behavior and toxicity might integrate into equally efficient anti-predator strategies depending on local predation and other ecological factors.

Hybridization promotes color polymorphism in the aposematic harlequin poison frog, Oophaga histrionica

The findings suggest that hybridization can produce phenotypic novelty even in systems where phenotypes are subject to strong stabilizing selection, and are compatible with a hybrid origin for the new morph.


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Geographic Variation of Melanisation Patterns in a Hornet Species: Genetic Differences, Climatic Pressures or Aposematic Constraints?

The observations suggest that the coloration patterns of hornets and their geographic variations are determined by genes with an influence of developmental constraints, more likely influenced by constraints on aposematism and Müllerian mimicry than by abiotic pressures on melanism.

Population expansion, isolation and selection: novel insights on the evolution of color diversity in the strawberry poison frog

The results support a major role for recent population expansion and reduced gene flow (from isolation on islands) in the diversification of color across populations.


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Radiation of the polymorphic Little Devil poison frog (Oophaga sylvatica) in Ecuador

The phylogeographic pattern among color‐divergent populations of the Little Devil poison frog Oophaga sylvatica is explored by analyzing population structure and genetic differentiation to evaluate which processes could account for color diversity within and among populations.

Phylogeny of African Long-Fingered Frogs (Arthroleptidae: Cardioglossa) Reveals Recent Allopatric Divergences in Coloration

A well-resolved phylogeny based on analyses of mitochondrial and nuclear loci for 18 species of Cardioglossa is presented, finding recent divergences between several allopatric lineages with distinctive coloration and pattern raise new questions about the significance of these traits in this genus.

Advergence in Müllerian mimicry: the case of the poison dart frogs of Northern Peru revisited

This study test the evidence in support of advergence using a population genetic framework in two localities where R. imitator is sympatric with different model species, Ranitomeya ventrimaculata and Ran itomeya variabilis, and finds that the model species are as variable as R.Imitator.



Convergent evolution of aposematic coloration in Neotropical poison frogs: a molecular phylogenetic perspective

It is relevant that the type species of Minyobates resulted as the sister group of the genus Dendrobates, and that species of Mannophryne and Nephelobates formed monophyletic clades, corroborating the validity of these genera.

Multiple, recurring origins of aposematism and diet specialization in poison frogs

Using expanded taxon and character sampling and simulations, the phylogenetic correlation between the origins of toxicity and warning coloration is reexamined and it is found that diet specialization is linked with the evolution of aposematism.

Phenotypic and genetic divergence in three species of dart-poison frogs with contrasting parental behavior.

It is demonstrated that the color and pattern variation among populations of D. pumilio is not matched by higher levels of mitochondrial DNA sequence divergence relative to P. lugubris or Minyobates sp.

The evolution of coloration and toxicity in the poison frog family (Dendrobatidae)

  • K. SummersM. Clough
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2001
Comparative analysis of the evolutionary relationships among representative species of poison frogs indicated a significant correlation between the evolution of toxicity and coloration across this family, consistent with the hypothesis that coloration in this group is aposematic.

Interspecific and intraspecific views of color signals in the strawberry poison frog Dendrobates pumilio

The results indicate that the colors displayed by the various color morphs of D. pumilio are effective signals both to conspecifics and to a model predator.

Non‐gradual variation in colour morphs of the strawberry poison frog Dendrobates pumilio: genetic and geographical isolation suggest a role for selection in maintaining polymorphism

The possibility that the observed variation in colour morphs is a consequence of a combination of local variation in both natural selection on an aposematic signal towards visual predators and sexual selection generated by colour morph‐specific mate preferences is discussed.

Variable Selection and the Coexistence of Multiple mimetic forms of the Butterfly Heliconius numata

The mimetic polymorphism of the butterfly Heliconius numata Cramer is explained by means of multiple selection-migration clines at a single locus, a similar process to that which explains narrow hybrid zones between geographic races of other Heliconii butterflies.

A review of colour and pattern polymorphisms in anurans

Despite the wide occurrence of pattern or colour polymorphisms in anurans, surprisingly little conclusive work has been done on the inheritance and selective maintenance of this variation and anuran polymorphisms remain a rich but largely unexploited system for studying the evolution of phenotypic variation in nature.