PHYLOGENETIC SUPPORT FOR THE EVOLUTION OF APOSEMATISM BEFORE GREGARIOUSNESS IN CONIFER SAWFLIES
The evolutionary origin of aposematism remains a long-standing puzzle: how can a conspicuous mutant persist and spread within a cryptic prey population? Two competing hypotheses have been proposed. The group-first hypothesis suggests that aposematism evolved secondarily in already aggregating, chemically defended cryptic ancestors, whereas the aposematism-first hypothesis suggests that…
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