Hybridization selects for prime-numbered life cycles in Magicicada: An individual-based simulation model of a structured periodical cicada population

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Toivonen , J & Fromhage , L 2020 , ' Hybridization selects for prime-numbered life cycles in Magicicada: An individual-based simulation model of a structured periodical cicada population ' , Ecology and Evolution , vol. 10 , no. 12 , pp. 5259-5269 . https://doi.org/10.1002/ece3.6270

Title: Hybridization selects for prime-numbered life cycles in Magicicada: An individual-based simulation model of a structured periodical cicada population
Author: Toivonen, Jaakko; Fromhage, Lutz
Other contributor: University of Helsinki, Department of Computer Science
Date: 2020-06
Language: eng
Number of pages: 11
Belongs to series: Ecology and Evolution
ISSN: 2045-7758
DOI: https://doi.org/10.1002/ece3.6270
URI: http://hdl.handle.net/10138/318441
Abstract: We investigate competition between separate periodical cicada populations each possessing different life-cycle lengths. We build an individual-based model to simulate the cicada life cycle and allow random migrations to occur between patches inhabited by the different populations. We show that if hybridization between different cycle lengths produces offspring that have an intermediate life-cycle length, then predation acts disproportionately to select against the hybrid offspring. This happens because they emerge in low densities without the safety-in-numbers provided by either parent population. Thus, prime-numbered life cycles that can better avoid hybridization are favored. However, we find that this advantage of prime-numbered cycles occurs only if there is some mechanism that can occasionally synchronize emergence between local populations in sufficiently many patches.
Subject: 1181 Ecology, evolutionary biology
individual-based model
Magicicada
prime numbers
structured population model
MITOCHONDRIAL-DNA
YUCCA MOTH
EVOLUTION
PRODOXIDAE
13-YEAR
HOMOPTERA-CICADIDAE
17-YEAR CICADAS
DIVERGENCE
LEPIDOPTERA
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