Aposematismo: Diferenzas entre revisións

== Mimetismo ==

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Non-aposematic species have often [[evolution|evolved]] to [[mimicry|mimic]] the conspicuous markings of their aposematic counterparts. For example, the [[hornet moth]] is a mimic of the yellowjacket wasp; it resembles the wasp, but has no sting. A predator which avoids the wasp will to some degree also avoid the moth. This is known as [[Batesian mimicry]], after [[Henry Walter Bates]], a British naturalist who studied Amazonian butterflies in the second half of the 19th century.<ref>{{cite journal | last1=Bates | first1=H. W. | year=1861 | title=Contributions to an insect fauna of the Amazon valley. Lepidoptera: Heliconidae | journal=[[Transactions of the Linnean Society of London|Transactions of the Linnean Society]] | volume=23 | issue=3 | pages=495–566 | url=https://www.biodiversitylibrary.org/page/26846005 | doi=10.1111/j.1096-3642.1860.tb00146.x }}; Reprint: {{cite journal | doi=10.1111/j.1095-8312.1981.tb01842.x | title=Contributions to an insect fauna of the Amazon valley (Lepidoptera: Heliconidae) | year=1981 | last1=Bates | first1=Henry Walter | journal=Biological Journal of the Linnean Society | volume=16 |issue=1| pages=41–54 }}</ref> Batesian mimicry is frequency dependent: it is most effective when the ratio of mimic to model is low; otherwise, predators learn to recognise the impostors.<ref name="Harper 1955–1961">{{cite journal| last=Harper| first=G. R|author2=Pfennig, D. W| title=Mimicry on the edge: why do mimics vary in resemblance to their model in different parts of their geographical range?| journal=Proceedings of the Royal Society B: Biological Sciences| date=22 August 2007| volume=274| issue=1621| pages=1955–1961| doi=10.1098/rspb.2007.0558| pmid=17567563| pmc=2275182}}</ref><ref>Edmunds, 1974. Page 112.</ref>