ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2025
Why is the early bird early? An evaluation of hypotheses for avian dawn-biased vocal activity.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Separating Overlapping Birdsongs Enhances the Reliability of Avian Vocal Activity Analysis.Ecology and evolution · 2026Article
- Invasive Strawberry Guava weakens avian frugivory in native forests of an oceanic island.PeerJ · 2026Article
- Tuning into nature: the sonic boost transforming tropical biodiversity research.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Why is the early bird early? An evaluation of hypotheses for avian dawn-biased vocal activity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
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Authors and funding
4 authors.
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Abstract
Bird species vary widely in their diurnal vocalization patterns, and the drivers of this variation are not well understood. Using passive acoustic monitoring, we examined species-specific vocal activity patterns at dawn and dusk for a tropical bird community in the Western Ghats biodiversity hotspot in India. We tested whether environmental factors (e.g. signal transmission conditions, ambient light, and resource availability) and social factors (e.g. territoriality) best-explained patterns of diurnal variation in vocal activity. Overall, we found that species-specific vocal activity was significantly higher at dawn (
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