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The red eft (juvenile) stage is a bright orangish-red, with darker red spots outlined in black. An eastern newt can have as many as 21 of these spots. The pattern of these spots differs among the subspecies. An eastern newt's time to get from larva to eft is about three months. During this stage, the eft may travel far, acting as a dispersal ...
The coloration of the red salamander has been hypothesized to mimic that of the red eft stage of the eastern newt (Notophythalmus viridescens) which emits a powerful neurotoxin in their skin. [29] This phenomenon is known as the Mullerian Mimicry Complex. [30]
A newt is a salamander in the subfamily Pleurodelinae. The terrestrial juvenile phase is called an eft. Unlike other members of the family Salamandridae, newts are semiaquatic, alternating between aquatic and terrestrial habitats. Not all aquatic salamanders are considered newts, however.
The red salamander (Pseudotriton ruber) is a palatable species with a similar coloring to the red eft. Predators that previously fed on it have been shown to avoid it after encountering red efts, an example of Batesian mimicry. [53] Other species exhibit similar mimicry.
Pseudotriton is a genus of salamanders in the family Plethodontidae. They are endemic to eastern and southern United States, from New York south to Florida and west to southern Ohio, Kentucky, Tennessee, and eastern Louisiana. They are commonly known as red salamanders or mud salamanders. [1]
The mud salamander (Pseudotriton montanus) is a bright red salamander of the family Plethodontidae. It is found in streams, seeps and swamps and underneath logs, rocks and leaves. It is found in streams, seeps and swamps and underneath logs, rocks and leaves.
The striped newt (Notophthalmus perstriatus) is a species of aquatic salamander native to the southeastern United States.It is a close relative of the eastern newt, with which it shares territory, and can be distinguished from the latter by the presence of red stripes running down the sides of its back and red spots on its back that lack a black outline.
A terrestrial subadult Eastern newt or red eft, Notophthalmus viridescens. Salamanders of the family Salamandridae with aquatic adult stages are called newts. Some newts, including the Eastern newt, have a juvenile terrestrial stage called the eft. The red eft has aposematic coloring to warn predators of its toxic skin.