One or More Species of Pacific Tree Frogs? Insights From Vocal Sexual Signals.

ABSTRACT: Evolutionary divergence in sexual signals may lead to or maintain reproductive isolation between populations. Both selective forces-such as ecological and sexual selection-and random processes like genetic drift may influence the diversification of sexual signals. Understanding the patterns and sources of intraspecific variation in sexual signals among populations can inform the stages of differentiation and speciation. In this study, we investigated patterns of geographic variation in vocal sexual signals and how they relate to genetic and environmental distances among nine populations of Pacific tree frogs. Importantly, the taxonomy of Pacific tree frogs remains unresolved; while some authors recognize only one species (Pseudacris regilla), other authors propose three distinct spe

SUBMITTER: Velez A 

PROVIDER: S-EPMC12505430 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature