Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds.
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| Title: | Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds. |
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| Authors: | Freeman, Benjamin G.1,2 freeman@zoology.ubc.ca, Rolland, Jonathan1,2,3, Montgomery, Graham A.4, Schluter, Dolph1,2 |
| Source: | Proceedings of the Royal Society B: Biological Sciences. 1/12/2022, Vol. 289 Issue 1966, p1-8. 8p. |
| Subjects: | Birdsongs, Genetic speciation, Songbirds, Species diversity, Passeriformes, Vicariance |
| 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. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 154664574 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Freeman%2C+Benjamin+G%2E%22">Freeman, Benjamin G.</searchLink><relatesTo>1,2</relatesTo><i> freeman@zoology.ubc.ca</i><br /><searchLink fieldCode="AR" term="%22Rolland%2C+Jonathan%22">Rolland, Jonathan</searchLink><relatesTo>1,2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Montgomery%2C+Graham+A%2E%22">Montgomery, Graham A.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Schluter%2C+Dolph%22">Schluter, Dolph</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+Royal+Society+B%3A+Biological+Sciences%22">Proceedings of the Royal Society B: Biological Sciences</searchLink>. 1/12/2022, Vol. 289 Issue 1966, p1-8. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Birdsongs%22">Birdsongs</searchLink><br /><searchLink fieldCode="DE" term="%22Genetic+speciation%22">Genetic speciation</searchLink><br /><searchLink fieldCode="DE" term="%22Songbirds%22">Songbirds</searchLink><br /><searchLink fieldCode="DE" term="%22Species+diversity%22">Species diversity</searchLink><br /><searchLink fieldCode="DE" term="%22Passeriformes%22">Passeriformes</searchLink><br /><searchLink fieldCode="DE" term="%22Vicariance%22">Vicariance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: 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. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1098/rspb.2021.1514 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1 Subjects: – SubjectFull: Birdsongs Type: general – SubjectFull: Genetic speciation Type: general – SubjectFull: Songbirds Type: general – SubjectFull: Species diversity Type: general – SubjectFull: Passeriformes Type: general – SubjectFull: Vicariance Type: general Titles: – TitleFull: Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Freeman, Benjamin G. – PersonEntity: Name: NameFull: Rolland, Jonathan – PersonEntity: Name: NameFull: Montgomery, Graham A. – PersonEntity: Name: NameFull: Schluter, Dolph IsPartOfRelationships: – BibEntity: Dates: – D: 12 M: 01 Text: 1/12/2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 09628452 Numbering: – Type: volume Value: 289 – Type: issue Value: 1966 Titles: – TitleFull: Proceedings of the Royal Society B: Biological Sciences Type: main |
| ResultId | 1 |
