title: A mathematical model on the optimal timing of offspring desertion.
abstract: We consider the offspring desertion as the optimal strategy for the deserter parent, analyzing a mathematical model for its expected reproductive success. It is shown that the optimality of the offspring desertion significantly depends on the offsprings' birth timing in the mating season, and on the other ecological parameters characterizing the innate nature of considered animals. Especially, the desertion is less likely to occur for the offsprings born in the later period of mating season. It is also implied that the offspring desertion after a partially biparental care would be observable only with a specific condition.
authors.affiliation: Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Higashi-hiroshima 739-8526, Japan. seno@math.sci.hiroshima-u.ac.jp
authors.forename: Hiromi
authors.initials: H
authors.lastname: Seno
authors.forename: Hiromi
authors.initials: H
authors.lastname: Endo
mesh_terms: D000818:Animals; D004463:Ecology; D008960:Models, Psychological; D016487:Parenting; D012098:Reproduction / Q000502:physiology*; D012621:Seasons; D012726:Sexual Behavior, Animal