ArticleBMC evolutionary biology2017
Origin and cross-century dynamics of an avian hybrid zone.
Article in BMC evolutionary biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 28 citations in OpenAlex.
- Expansion From Lowland Pleistocene Refugia Followed by Cryptic Introgression in an African Elevational Generalist Bird.Molecular ecology · 2026Article
- Speciation with gene flow in an island endemic hummingbird.PNAS nexus · 2025Article
- Review
- Temporal stability of the hybrid zone betweenEcology and evolution · 2023Article
- Article
- Microstructures amplify carotenoid plumage signals in tanagers.Scientific reports · 2021Article
- Primary hybrid zone formation in Tephroseris helenitis (Asteraceae), following postglacial range expansion along the central Northern Alps.Molecular ecology · 2021Article
- Molecular evidence and ecological niche modeling reveal an extensive hybrid zone among three Bursera species (section Bullockia).PloS one · 2021Article
- Historical climate changes and hybridization shaped the evolution of Atlantic Forest spinetails (Aves: Furnariidae).Heredity · 2019Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCharacterizations of the dynamics of hybrid zones in space and time can give insights about traits and processes important in population divergence and speciation. We characterized a hybrid zone between tanagers in the genus Ramphocelus (Aves, Thraupidae) located in southwestern Colombia. We evaluated whether this hybrid zone originated as a result of secondary contact or of primary differentiation, and described its dynamics across time using spatial analyses of molecular, morphological, and coloration data in combination with paleodistribution modeling.
resultsModels of potential historical distributions based on climatic data and genetic signatures of demographic expansion suggested that the hybrid zone likely originated following secondary contact between populations that expanded their ranges out of isolated areas in the Quaternary. Concordant patterns of variation in phenotypic characters across the hybrid zone and its narrow extent are suggestive of a tension zone, maintained by a balance between dispersal and selection against hybrids. Estimates of phenotypic cline parameters obtained using specimens collected over nearly a century revealed that, in recent decades, the zone appears to have moved to the east and to higher elevations, and may have become narrower. Genetic variation was not clearly structured along the hybrid zone, but comparisons between historical and contemporary specimens suggested that temporal changes in its genetic makeup may also have occurred.
conclusionsOur data suggest that the hybrid zone likey resulted from secondary contact between populations. The observed changes in the hybrid zone may be a result of sexual selection, asymmetric gene flow, or environmental change.
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