Ponkshe Aditya, Endler John A
Centre for Integrative Ecology, School of Life & Environmental Sciences Deakin University Waurn Ponds Victoria Australia.
MINT Lab, Edificio Luis Vives, Campus Espinardo University of Murcia Murcia Spain.
Ecol Evol. 2022 Oct 11;12(10):e9356. doi: 10.1002/ece3.9356. eCollection 2022 Oct.
Maintenance of variation in aposematic traits within and among populations is paradoxical because aposematic species are normally under positive frequency-dependent predation (PFD), which is expected to erode variation. Aposematic traits can evolve in an ecological context where aposematic traits are simultaneously under mate choice. Here, we examine how the mate preference intensity affects the permissiveness of polymorphism in sexually selected aposematic traits under different PFD regimes. We use the haploid version of the classical sexual selection model and show that strong mate preferences can substantially increase the permissiveness of polymorphism in aposematic traits under different PFD regimes. The Fisher process can interact with PFD, and their interaction can promote the maintenance of polymorphism within populations when mate preferences are strong. We show that the same selective conditions that promote the maintenance of polymorphism within populations reduce the likelihood of divergence in aposematic traits among populations.
在种群内部和种群之间，警戒色特征变异的维持是自相矛盾的，因为具有警戒色的物种通常处于正频率依赖型捕食（PFD）之下，这种情况下变异预计会被削弱。在一个生态环境中，当警戒色特征同时受到配偶选择影响时，警戒色特征能够进化。在此，我们研究配偶偏好强度如何在不同的PFD模式下影响性选择的警戒色特征中多态性的容许度。我们使用经典性选择模型的单倍体版本，并表明强烈的配偶偏好能够在不同的PFD模式下大幅增加警戒色特征中多态性的容许度。费舍尔过程能够与PFD相互作用，当配偶偏好强烈时，它们的相互作用能够促进种群内部多态性的维持。我们表明，促进种群内部多态性维持的相同选择条件会降低种群间警戒色特征趋异的可能性。
