IFIBA, CONICET and Departamento de Física, FCEyN, UBA, Buenos Aires 1428, Argentina.
División Ornitología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (MACN-CONICET), Buenos Aires 1405, Argentina.
Phys Rev Lett. 2020 Mar 6;124(9):098101. doi: 10.1103/PhysRevLett.124.098101.
In this work we study the sound production mechanism of the raspy sounding song of the white-tipped plantcutter (Phytotoma rutila), a species with a most unusual vocalization. The biomechanics involved in the production of this song, and scaling arguments, allowed us to predict the precise way in which body size is encoded in its vocalizations. We tested this prediction through acoustic analysis of recorded songs, computational modeling of its unusual vocal strategy, and inspection of museum specimens captured across southeastern and south-central South America.
在这项工作中，我们研究了白顶切叶蚁（Phytotoma rutila）刺耳发声歌曲的发声机制，这种物种的叫声非常特别。涉及这种歌曲产生的生物力学和比例论点，使我们能够预测体型在其叫声中被精确编码的方式。我们通过对记录歌曲的声学分析、对其不寻常发声策略的计算建模以及对在南美洲东南部和中南部捕获的博物馆标本的检查，验证了这一预测。
