Data from: Avian predation pressure as a potential driver of periodical cicada cycle length

Walter D. Koenig & Andrew M. Liebhold
The extraordinarily long life cycles, synchronous emergences at 13- or 17-year intervals, and complex geographic distribution of periodical cicadas (Magicicada spp.) in eastern North America are an evolutionary enigma. Although a variety of factors, including satiation of above-ground predators and avoidance of interbrood hybridization, have been hypothesized to shape the evolution of this system, no empirical support for these mechanisms has previously been reported beyond the observation that bird predation can extirpate small, experimentally mistimed...
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