# Multiple‐Level Variation of Advertisement Calls of Microhyla fissipes Across Hainan Island

## TL;DR

This paper examines how the advertisement calls of Microhyla fissipes frogs vary across different populations on Hainan Island.

## Contribution

The study identifies specific call parameters that differ between two geographical groups of Microhyla fissipes.

## Key findings

- Dominant frequency is the most consistent call parameter at the individual level.
- Four of six call parameters show significant differences between the two geographical groups.
- The southwest group has the highest dominant frequency reported for Microhyla fissipes.

## Abstract

Vocalization is an important feature in anuran identification that could vary among individuals and populations. We present an investigation of multiple‐level variation on advertisement calls of
Microhyla fissipes
from nine populations across Hainan Island and further test the differences between the two geographical groups that were divided by morphological features in a previous study. We found that dominant frequency is the most static call parameter at the individual level. Four of six call parameters show significant differences between groups and could be useful for identification between groups. The southwest (SW) group from Hainan Island represents the highest dominant frequency among all reported advertisement calls of
M. fissipes
in the literature, implying a need for further studies.

Vocalization is an important feature in anuran identification that could vary among individuals and populations. We present an investigation of multiple‐level variation on advertisement calls of
Microhyla fissipes
from nine populations across Hainan Island and further test the differences between the two geographical groups that were divided by morphological features in a previous study.