What is it about?
We studied geographic variation in the characteristics of the songs of Olive Sparrows at a geographical level and we evaluated the strength of acoustic divergence within the complex
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Why is it important?
We found significant acoustic variation in the Olive Sparrow complex at both geographical levels. Our divergence analysis also revealed that vocal divergence within the complex is similar to or greater than that found between recognized species in the genus
Perspectives
Future genetic studies would help determine how divergent these taxa are, and experimental playback studies could be used to determine whether song divergence is perceived by individuals as a biologically relevant trait for species recognition
Ron A. Fernandez
Universidad Veracruzana
Read the Original
This page is a summary of: Geographic variation and divergence of songs in the Olive Sparrow species complex, Journal of Field Ornithology, March 2020, Wiley,
DOI: 10.1111/jofo.12320.
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