Ronald Altig

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Metamorphic vertebrate species are of particular interest in ecological and evolutionary studies because the decoupling of larval and adult growth patterns potentially allows adaptive diversifications of the separate stages. Larval and adult growth might be much more constrained if allometric patterns were constant throughout ontogeny. To better understand(More)
The ecomorphological guild “gastromyzophorous” joins tadpoles that inhabit flowing water and have an abdominal sucker which is employed to adhere to substrates. Historically, gastromyzophorous larvae were known in the Bufonidae and Ranidae, but a new sucker-bearing hylid tadpole was recently described from phytotelmons in Brazilian forests. We describe the(More)
Tadpole morphology usually is consistent within taxa and ecologies (Altig & Johnston 1989), but the occurrences of unique morphologies offer informative perspectives on the potential diversity of these structures. Anstis (2013) characterized most of the tadpoles of Australia, but a thorough understanding of certain morphological features requires closer(More)
Most of the reproductive modes of frogs include an exotrophic tadpole, but a number of taxa have some form of endotrophic development that lacks a feeding tadpole stage. The dicroglossid frog genus Limnonectes ranges from China south into Indonesia. The breeding biologies of the approximately 60 described species display an unusual diversity that range from(More)
Fanged frogs (Limnonectes) are a group of dicroglossid frogs from Asia that often have reversed sexual dimorphism with larger males. Limnonectes dabanus is a poorly known species of fanged frog from forested habitats in southern Vietnam and eastern Cambodia. Adult males exhibit an extreme degree of megacephaly and possess bizarre head ornamentation. L.(More)
The breeding behavior of Glyphoglossus molossus is described from still and video images taken in Cambodia. These large, burrowing frogs follow the general theme of microhylids that deposit aquatic eggs: explosive breeding in ephemeral water and performing multiple amplectic dips to oviposit surface films of pigmented eggs. A portion of a clutch is released(More)
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