Article
A tadpole-induced polyphenism in the salamander Hynobius retardatus.
Evolution; international journal of organic evolution - 1 Oct 2002
Michimae Hirofumi, Wakahara Masami
Abstract excerpt
Larvae of the salamander Hynobius retardatus have two distinct morphs: normal and broad-headed, cannibal morphs. We performed three experiments to differentiate among the following hypotheses: The broad-headed morph is induced to allow: (1) feeding on nutritious conspecifics; (2) exclusion of strong competitors for food or space; or (3) feeding on large, tough prey when smaller prey items are unavailable. When...
Topics
- Analysis of Variance
- Animals
- Behavior, Animal
- Biological Evolution
- Cannibalism
- Phenotype
- Population Dynamics
- Selection, Genetic
- Species Specificity
- Time Factors
- Caudata