Batesian mimicry


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Batesian mimicry

[′bāt·sē·ən ′mim·ə·krē]
(ecology)
Resemblance of an innocuous species to one that is distasteful to predators.
References in periodicals archive ?
This extraordinary Batesian mimicry polymorphism has been hypothesized by Del Claro (1991) as resulting from density-dependent selection.
In Batesian mimicry, the mimic (Pholidichthys leucotaenia) may be quite abundant throughout its distribution if the model (Plotosus lineatus) is extremely venomous and therefore unpalatable, or if the mimic is unimportant as prey (Randall 2005).
fontandraui is truly aposematic and can be considered a member of the proposed Mullerian circle of the blue chromatic Mediterranean and Atlantic Hypselodoris species or, on the contrary, might represent a case of Batesian mimicry, as could be suspected by the absence of MDFs.
This species, like promethea, has very dark males suggesting Batesian mimicry.
If the leg I movement is a means ofpicking up chemical cues we would expect it to be much more random than if it is really a Batesian mimicry trait.
In scientific circles this idea--an edible species benefiting by imitating a noxious one--is known as Batesian mimicry.
The theory of Batesian mimicry holds that edible species that look like dangerous species will be protected, because predators evolve to avoid dangerous species--even without previous, real-life, bad dining experiences.
Batesian mimicry (Bates 1862), where palatable prey resembles unpalatable (or otherwise unprofitable) and conspicuous prey, differs from any other prey-predator dynamic (Endler 1991).
Gilbert (2005) and Stevens (2007) commented on "imperfect mimicry," citing the possibility that it may be an adaptation to combine camouflage with some level of Batesian mimicry should concealment fail; it is not known whether any of the mimic octopuses are toxic.
That means clicking works both as Mullerian mimicry (two unpalatable species benefiting by making similar sounds that predators can learn by catching either one) and Batesian mimicry (edible prey borrowing an "unpalatable" signal), says Barber.