Abstract:
:Batesian mimicry, in which harmless species (mimics) deter predators by deceitfully imitating the warning signals of noxious species (models), generates striking cases of phenotypic convergence that are classic examples of evolution by natural selection. However, mimicry of venomous coral snakes has remained controversial because of unresolved conflict between the predictions of mimicry theory and empirical patterns in the distribution and abundance of snakes. Here we integrate distributional, phenotypic and phylogenetic data across all New World snake species to demonstrate that shifts to mimetic coloration in nonvenomous snakes are highly correlated with coral snakes in both space and time, providing overwhelming support for Batesian mimicry. We also find that bidirectional transitions between mimetic and cryptic coloration are unexpectedly frequent over both long- and short-time scales, challenging traditional views of mimicry as a stable evolutionary 'end point' and suggesting that insect and snake mimicry may have different evolutionary dynamics.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Davis Rabosky AR,Cox CL,Rabosky DL,Title PO,Holmes IA,Feldman A,McGuire JAdoi
10.1038/ncomms11484subject
Has Abstractpub_date
2016-05-05 00:00:00pages
11484issn
2041-1723pii
ncomms11484journal_volume
7pub_type
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