Journal of Ecology and Environment

pISSN 2287-8327 eISSN 2288-1220

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Published online December 18, 2024
https://doi.org/10.5141/jee.24.040

Journal of Ecology and Environment (2024) 48:49

Comparison of the responses of male Japanese treefrog (Dryophytes japonicus) to the rain and advertisement calls

Hahyun Nam , Jin-Kyoung Kim , Jiho Park , Jongsun Kim , Min-Woo Park , Jiyeon Cheon and Daesik Park*

Division of Science Education, Kangwon National University, Chuncheon 24341, Republic of Korea

Correspondence to:Daesik Park
E-mail parkda@kangwon.ac.kr

Received: April 17, 2024; Revised: November 15, 2024; Accepted: December 3, 2024

This article is licensed under a Creative Commons Attribution (CC BY) 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ The publisher of this article is The Ecological Society of Korea in collaboration with The Korean Society of Limnology

Abstract

Anurans communicate with others using several types of calls such as advertisement, encounter, release, and rain calls. Some treefrog species produce rain calls from their daytime shelters, such as trees and bushes, during both the breeding and non-breeding seasons. However, the function of rain calls is poorly understood. We investigated the potential functions of rain calls by comparing the responses of male Dryophytes japonicus to the playback of advertisement and rain calls. During one minute of playback and three minutes post-playback, the frequencies of orientation and approach of male D. japonicus towards the call-producing speaker did not differ in the rain and advertisement calls. However, the number of individuals, who finally arrived at the speaker among the males, approached towards the speaker, was significantly lower for the rain call compared to the advertisement call during one-minute playback. Our results suggest that both types of calls evoke the attention of conspecific males, but rain calls do not attract conspecific males, unlike advertisement calls. This difference may reflect the distinct functions of rain and advertisement calls.

Keywords: animal communication, anuran, playback test, vocalization

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Journal of Ecology and Environment

pISSN 2287-8327 eISSN 2288-1220