Beyond Sound: Bimodal Acoustic Calls Used in Mate-Choice and Aggression by Red-Eyed Treefrogs

Student Authors

Kayla Britt '17

Lilianna Mischke '21

Hannah Collins '16

Document Type


Publication Date


Department 1



Acoustic signals play key roles in determining mating success in many animals, both as a focus of mate-choice and as mediators of agonistic interactions between competing individuals. Selection on these signals is, therefore, an important driver of evolution, and understanding their function is vital in teasing apart the mechanisms that lead to the elaboration of sexual traits, and to the diversification and maintenance of evolutionary lineages (Podos, 2022; Wilkins et al., 2013). There exists a massive body of work exploring the function of acoustic signals in sexual and other contexts (Gerhardt and Huber, 2002; Marler and Slabbekoorn, 2004; Simmons et al., 2003). The vast majority of these studies focus on animal sounds or substrate vibrations in a unimodal context (Gerhardt and Huber, 2002; Marler and Slabbekoorn, 2004) or as bimodal signals with a visual component (Elias et al., 2005; Laird et al., 2016; Narins et al., 2003).


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