Forscher untersuchten mithilfe von KI mehr als 116.000 Vogelgesangaufzeichnungen von über 3.000 Arten und stellten fest, dass Vogelgesänge auf der ganzen Welt trotz ihrer großen Vielfalt aus nur acht grundlegenden akustischen Bausteinen aufgebaut sind
https://timesofindia.indiatimes.com/science/researchers-used-ai-to-study-more-than-116000-birdsong-recordings-from-over-3000-species-and-discovered-that-despite-their-huge-variety-birdsongs-across-the-world-are-built-from-only-eight-basic-acoustic-building-blocks/articleshow/132637462.cms
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– Songbirds and similar perching birds were studied.
– Birds that live in dense vegetation/forests had less complex songs. Sounds become distorted as they bounce off densely growing trees, so simpler songs allowed the message to remain clear at greater distances and reduced distortion.
– “The eight motifs include three types of trills played at different speeds, three kinds of whistles with different pitch changes and two more complex sounds described as atonal chaotic notes and harmonic stacks.
Most species used more than one motif in their songs. In fact, researchers found that individual songs usually contained between two and eight motifs.
However, one motif often dominated. The researchers found that 65.3% of species used their main motif in more than 80% of their songs.
The remaining 34.7% of species used a wider mix of motifs, resulting in greater variation in their songs.”