A taste for mimicry

Article Abstract:

Mimicry, a strong visual resemblance between unrelated species, can work in an unexpected way to provide safeguards against predators. Mimicry generally occurs in two forms, Batesian and Mullerian, where Batesian mimicry is essentially parasitic and Mullerian mimicry involves two unpalatable species, and is thought to be mutaualistic.

United States, Animal defences

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Selection overrides gene flow to break down maladaptive mimicry

Article Abstract:

DNA-based methods are employed to study the gene flow that highly affects the maladaptive mimicry in the batesian mimics. Gene flow is found to be overruled by the process of natural selection, hence causing the mimics to migrate from sympatry to allopatry regions.

Analysis, Natural selection, Gene flow

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Frequency-dependent Batesian mimicry

Article Abstract:

Issues are presented concerning the lack of effectiveness of Batesian mimicry in snakes when the venomous species is absent from the territory containing the non-venomous mimic.

Environmental aspects, Predation (Biology), Snakes, Predation

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