ArticleProceedings. Biological sciences2022
Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds.
Article in Proceedings. Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Conserving avian vocal culture.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Speciation completion rates have limited impact on macroevolutionary diversification.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- The Metapopulation Bridge to Macroevolutionary Speciation Rates: A Conceptual Framework and Empirical Test.Ecology letters · 2025Article
- Conceptual and empirical bridges between micro- and macroevolution.Nature ecology & evolution · 2023Review
- Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds.Proceedings. Biological sciences · 2022Article
- The impacts of fine-tuning, phylogenetic distance, and sample size on big-data bioacoustics.PloS one · 2022Article
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Authors and funding
4 authors.
Funding
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Abstract
Why are speciation rates so variable across the tree of life? One hypothesis is that this variation is explained by how rapidly reproductive barriers evolve. We tested this hypothesis by conducting a comparative study of the evolution of bird song, a premating barrier to reproduction. Speciation in birds is typically initiated when geographically isolated (allopatric) populations evolve reproductive barriers. We measured the strength of song as a premating barrier between closely related allopatric populations by conducting 2339 field experiments to measure song discrimination for 175 taxon pairs of allopatric or parapatric New World passerine birds, and estimated recent speciation rates from molecular phylogenies. We found evidence that song discrimination is indeed an important reproductive barrier: taxon pairs with high song discrimination in allopatry did not regularly interbreed in parapatry. However, evolutionary rates of song discrimination were not associated with recent speciation rates. Evolutionary rates of song discrimination were also unrelated to latitude or elevation, but species with innate song (suboscines) evolved song discrimination much faster than species with learned song (oscines). We conclude that song is a key premating reproductive barrier in birds, but faster evolution of this reproductive barrier between populations does not consistently result in faster diversification between species.
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