雀类鸣叫的全球生物地理分布

1. 信息

2. 摘要

Although bird songs are classic models for understanding the evolution of vocal communication, their global diversity has long made the development of a unifying framework challenging. By analyzing the acoustic architecture of songs from more than 3000 passerine species worldwide, we show that this acoustic space can be structured around eight elemental motifs. The differential use of these motifs is driven by a combination of species’ biological traits (social organization, morphology, and mating system) and the physics of sound propagation. In tropical rainforests, environmental filtering for transmission efficiency favors structurally simple motifs, such as flat whistles. Conversely, in temperate regions, where high population densities facilitate close-range communication and short breeding seasons intensify sexual selection, the balance shifts toward complex, information-rich motifs, such as ultrafast trills, despite their susceptibility to acoustic degradation. Ultimately, the global geography of birdsong reflects a spatially varying equilibrium between physical environmental constraints and the biological drive for complex communication.

3. 图表

4. 引用

@article{bacquel2026,
  author = {Quentin Bacquelé and Jean-Yves Barnagaud and Cyrille Violle and Frédéric Theunissen and Nicolas Mathevon},
  title = {The global biogeography of passerine songs},
  journal = {Science},
  year = {2026},
  volume = {393},
  number = {6809},
  pages = {381-386},
  doi = {10.1126/science.aee6239},
  publisher = {American Association for the Advancement of Science (AAAS)},
}