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[Female song in Passeriformes: An exception or the rule?]
Zhurnal Obshchei Biologii
|July 20, 2018
Summary
Female song in Passeriformes (songbirds and bronchophone birds) evolved independently across various families. This phenomenon is not ancestral for the entire order and shows no direct link to sexual dimorphism or coloration.
Area of Science:
- Ornithology
- Evolutionary Biology
- Animal Behavior
Background:
- Female song in birds is a complex behavior with debated evolutionary origins.
- Understanding its prerequisites and correlates is crucial for avian evolutionary studies.
Purpose of the Study:
- To investigate the evolutionary history of female song in Passeriformes.
- To determine if female song is an ancestral trait within Passeriformes.
- To explore the relationship between female song and species-specific biological traits and dispersion patterns.
Main Methods:
- Comparative analysis of female song occurrence across 18 songbird families (including Turdidae and Sylviidae subfamilies) and 4 bronchophone bird families (including Tyrannidae subfamilies).
Main Results:
- Female singing has evolved independently in multiple Passeriformes families, including both songbirds and bronchophone birds.
- The data suggest that female song is not an ancestral trait for the entire Passeriformes order.
- No direct correlation was found between female song and sexual dimorphism, duet singing, or lipochrome coloration.
Conclusions:
- The independent evolution of female song across diverse Passeriformes lineages highlights convergent evolution.
- Female song's evolutionary trajectory is not linked to shared ancestral conditions within the order.
- Future research should explore other potential drivers and constraints of female song evolution in birds.
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