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Double Fluorescence in situ Hybridization in Fresh Brain Sections
Published on: August 14, 2010
Highly structured duets in the song of the South American Hornero
Rodrigo Laje1, Gabriel B Mindlin
1Departamento de Física, FCEN, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I (C1428EGA), Buenos Aires, Argentina.
Abstract:
The South American Hornero (Furnarius rufus) is a suboscine bird widely known for its mud-made, oven-looking nest. Beyond their architectural skills, the male and female Horneros sing in highly structured duets. The analysis of field recordings reported in this work reveals that as the male increases the note production rate the female responds by switching to different locking states: the ones predicted by the theory of nonlinear forced oscillators. This gives the duet a most appealing rhythm, and unveils the nonlinear nature of the underlying brain activity needed to generate the song.
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