Coevolutionary patterns caused by prey selection

Autor(es)

Araujo, Sabrina B. L. ^{[1, 2]} ; Borges, Marcelo Eduardo ^{[2, 3]} ; von Hartenthal, Francisco W. ^[3] ; Jorge, Leonardo R. ^{[4, 5]} ; Lewinsohn, Thomas M. ^[4] ; Guimaraes Jr, Paulo R. ; van Baalen, Minus ^[6]

Afiliação do(s) autor(es)

^[1] Univ Fed Parana, Dept Fis, BR-81531980 Curitiba, Parana - Brazil

^[2] Univ Fed Parana, Lab Ecol & Evolucao Interacoes, Biol Interact, BR-81531980 Curitiba, Parana - Brazil

^[3] Setor Ciencias Biol, Posgrad Ecol & Conservacao, Caixa Postal 19031, BR-81531990 Curitiba, Parana - Brazil

^[4] Univ Estadual Campinas, Dept Biol Anim, Inst Biol, Campinas - Brazil

^[5] Czech Acad Sci, Biol Ctr, Inst Entomol, Dept Ecol, Ceske Budejovice - Czech Republic

^[6] ENS, UMR8197, CNRS, IBENS, Paris - France

• Tipo de documento: Artigo Científico
• Fonte: Journal of Theoretical Biology; v. 501, SEP 21 2020.
• Citações Web of Science: 0

Resumo

Many theoretical models have been formulated to better understand the coevolutionary patterns that emerge from antagonistic interactions. These models usually assume that the attacks by the exploiters are random, so the effect of victim selection by exploiters on coevolutionary patterns remains unexplored. Here we analytically studied the payoff for predators and prey under coevolution assuming that every individual predator can attack only a small number of prey any given time, considering two scenarios: (i) predation occurs at random; (ii) predators select prey according to phenotype matching. We also develop an individual based model to verify the robustness of our analytical prediction. We show that both scenarios result in well known similar coevolutionary patterns if population sizes are sufficiently high: symmetrical coevolutionary branching and symmetrical coevolutionary cycling (Red Queen dynamics). However, for small population sizes, prey selection can cause unexpected coevolutionary patterns. One is the breaking of symmetry of the coevolutionary pattern, where the phenotypes evolve towards one of two evolutionarily stable patterns. As population size increases, the phenotypes oscillate between these two values in a novel form of Red Queen dynamics, the episodic reversal between the two stable patterns. Thus, prey selection causes prey phenotypes to evolve towards more extreme values, which reduces the fitness of both predators and prey, increasing the likelihood of extinction. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/51395-7 - Redes em Ecologia: Teoria, Métodos e Aplicações | Campinas – SP
• Beneficiário: Thomas Michael Lewinsohn
• Modalidade de apoio: Auxílio Organização - Reunião Científica - Escola São Paulo de Ciência Avançada
• Processo FAPESP: 09/54806-0 - Estruturacao da variabilidade fenotipica em insetos fitofagos
• Beneficiário: Leonardo Ré Jorge
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/16082-9 - Diversificação e especialização trófica em insetos fitófagos
• Beneficiário: Leonardo Ré Jorge
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado