Aposematic theory has historically predicted that predators should select for warning signals
to converge on a single form, as a result of frequency‐dependent learning. However …

The role of colours and colour patterns in behavioural ecology has been extensively studied
in a variety of contexts and taxa, while almost overlooked in many others. For decades …

Despite the impressive growth of knowledge on the phylogenetic systematics of dart-poison
frogs and their relatives (Dendrobatoidea) over the past decade, many problems remain to …

We explore the relevance of honest signalling theory to the evolution of aposematism. We
begin with a general consideration of models of signal stability, with a focus on the Zahavian …

Sequestration of chemical defenses from dietary sources is dependent on the availability of
compounds in the environment and the mechanism of sequestration. Previous experiments …

Poison frogs sequester chemical defenses from arthropod prey, although the details of how
arthropod diversity contributes to variation in poison frog toxins remains unclear. We …

Amphibians are one of the most remarkable sources of unique natural products. Biogenic
amines, peptides, bufodienolides, alkaloids, and volatile organic compounds have been …

Poison frogs sequester small molecule lipophilic alkaloids from their diet of leaf litter
arthropods for use as chemical defenses against predation. Although the dietary acquisition …

While divergent ecological adaptation can drive speciation, understanding the factors that
facilitate or constrain this process remains a major goal in speciation research. Here, we …

A common goal in evolutionary biology is to discern the mechanisms that produce the
astounding diversity of morphologies seen across the tree of life. Aposematic species, those …