Evidence map›Paper›PMID 30348758›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

Role of sexual imprinting in assortative mating and premating isolation in Darwin's finches.

Peter R Grant, B Rosemary Grant

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed.

  1. Article
  2. Article
  3. Cultural and morphological divergence of Darwin's cactus finches (Biological journal of the Linnean Society. Linnean Society of London · 2025
    Article
  4. Article
  5. A genomic basis of vocal rhythm in birds.Nature communications · 2024
    Article
  6. Article
  7. Article
  8. Genomic evidence of speciation by fusion in a recent radiation of grasshoppers.Evolution; international journal of organic evolution · 2022
    Article
  9. Maintenance of local adaptation despite gene flow in a coastal songbird.Evolution; international journal of organic evolution · 2022
    Article
  10. Article
  11. Article
  12. Morphological ghosts of introgression in Darwin's finch populations.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Character displacement drives trait divergence in a continental fauna.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Triad hybridization via a conduit species.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  18. Article
  19. Hybridization increases population variation during adaptive radiation.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  20. Adult sex ratio influences mate choice in Darwin's finches.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Peter R GrantDepartment of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544 prgrant@princeton.edu.ORCID 0000-0002-7347-5758
B Rosemary GrantDepartment of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Global biodiversity is being degraded at an unprecedented rate, so it is important to preserve the potential for future speciation. Providing for the future requires understanding speciation as a contemporary ecological process. Phylogenetically young adaptive radiations are a good choice for detailed study because diversification is ongoing. A key question is how incipient species become reproductively isolated from each other. Barriers to gene exchange have been investigated experimentally in the laboratory and in the field, but little information exists from the quantitative study of mating patterns in nature. Although the degree to which genetic variation underlying mate-preference learning is unknown, we provide evidence that two species of Darwin's finches imprint on morphological cues of their parents and mate assortatively. Statistical evidence of presumed imprinting is stronger for sons than for daughters and is stronger for imprinting on fathers than on mothers. In combination, morphology and species-specific song learned from the father constitute a barrier to interbreeding. The barrier becomes stronger the more the species diverge morphologically and ecologically. It occasionally breaks down, and the species hybridize. Hybridization is most likely to happen when species are similar to each other in adaptive morphological traits, e.g., body size and beak size and shape. Hybridization can lead to the formation of a new species reproductively isolated from the parental species as a result of sexual imprinting. Conservation of sufficiently diverse natural habitat is needed to sustain a large sample of extant biota and preserve the potential for future speciation.

Indexed as

Genetic SpeciationAnimalsBiodiversityBiological EvolutionEcologyEcosystemEcuadorFinchesHybridization, GeneticImprinting, PsychologicalPhenotypeReproductionReproductive IsolationSexual Behavior, AnimalSpecies SpecificityVocalization, Animalassortative matinghybridizationimprintingspeciation

Identifiers

PMID30348758
PMCPMC6243256

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.