Only low-frequency trill types (*) are negatively related to tarsus length.

The table shows Mixed Model predictions for each trill type (column 1), of mean frequency (column 2; average s.e.d. = 0.29) and the effect of tarsus on frequency (column 3; average s.e.d. = 0.48), as well as sample sizes (column 4, see Results for further details of Mixed Model output).

本表格呈现了各颤鸣类型（第1列）的混合模型（Mixed Model）预测结果，涵盖平均频率（第2列；平均标准误差（s.e.d.）= 0.29）、跗跖对频率的影响效应（第3列；平均标准误差（s.e.d.）= 0.48），以及样本量（第4列；混合模型输出的详细信息详见“结果”部分）。