Department of Biology, University of Virginia, Charlottesville, VA 22902 USA.
Biol Lett. 2020 Sep;16(9):20200508. doi: 10.1098/rsbl.2020.0508. Epub 2020 Sep 16.
Behavioural resistance to parasites is widespread in animals, yet little is known about the evolutionary dynamics that have shaped these strategies. We show that theory developed for the evolution of physiological parasite resistance can only be applied to behavioural resistance under limited circumstances. We find that accounting explicitly for the behavioural processes, including the detectability of infected individuals, leads to novel dynamics that are strongly dependent on the nature of the costs and benefits of social interactions. As with physiological resistance, evolutionary dynamics of behavioural resistance can also lead to mixed strategies that balance these costs and benefits.
动物对寄生虫的行为抵抗普遍存在，但人们对塑造这些策略的进化动态知之甚少。我们表明，为生理寄生虫抗性进化而开发的理论只能在有限的情况下应用于行为抗性。我们发现，明确考虑到行为过程，包括感染个体的可检测性，会导致强烈依赖于社会互动成本和收益性质的新动态。与生理抗性一样，行为抗性的进化动态也可能导致平衡这些成本和收益的混合策略。
