Evidence map›Paper›PMID 35394835›Full record

ArticleScience advances2022

River network rearrangements promote speciation in lowland Amazonian birds.

Lukas J Musher, Melina Giakoumis, James Albert, Glaucia Del-Rio, Marco Rego, Gregory Thom, Alexandre Aleixo, Camila C Ribas, Robb T Brumfield, Brian Tilston Smith and 1 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
10.1field-weighted citation impact, top 1% of its field
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

15 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Geological processes shaping freshwater biodiversity: a synthesis of global evidence.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 6 institutions in 3 countries.

Lukas J MusherDepartment of Ornithology, The Academy of Natural Sciences of Drexel University, Philadelphia, PA 19103, USA.ORCID 0000-0003-3490-0341
Melina GiakoumisDepartment of Biology, City College of New York, New York, NY 10031, USA.
James AlbertDepartment of Biology, University of Louisiana at Lafayette, Lafayette, LA 70503, USA.
Glaucia Del-RioDepartment of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.ORCID 0000-0001-7212-8474
Marco RegoDepartment of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.ORCID 0000-0002-6783-0012
Gregory ThomDepartment of Ornithology, American Museum of Natural History, New York, NY 10028, USA.ORCID 0000-0001-6200-0565
Alexandre AleixoFinnish Museum of Natural History of Helsinki, University of Helsinki, Helsinki, Finland.ORCID 0000-0002-7816-9725
Camila C RibasInstituto Nacional de Pesquisas da Amazônia, INPA, Manaus, Brazil.ORCID 0000-0002-9088-4828
Robb T BrumfieldDepartment of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.ORCID 0000-0003-2307-0688
Brian Tilston SmithDepartment of Ornithology, American Museum of Natural History, New York, NY 10028, USA.ORCID 0000-0001-8782-6400
Joel CracraftDepartment of Ornithology, American Museum of Natural History, New York, NY 10028, USA.ORCID 0000-0001-7587-8342
American Museum of Natural History · USLouisiana State University · USInstituto Nacional de Pesquisas da Amazônia · BRMuseu Paraense Emílio Goeldi · BRThe Graduate Center, CUNY · USUniversity of Louisiana at Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Large Amazonian rivers impede dispersal for many species, but lowland river networks frequently rearrange, thereby altering the location and effectiveness of river barriers through time. These rearrangements may promote biotic diversification by facilitating episodic allopatry and secondary contact among populations. We sequenced genome-wide markers to evaluate the histories of divergence and introgression in six Amazonian avian species complexes. We first tested the assumption that rivers are barriers for these taxa and found that even relatively small rivers facilitate divergence. We then tested whether species diverged with gene flow and recovered reticulate histories for all species, including one potential case of hybrid speciation. Our results support the hypothesis that river rearrangements promote speciation and reveal that many rainforest taxa are micro-endemic, unrecognized, and thus threatened with imminent extinction. We propose that Amazonian hyper-diversity originates partly from fine-scale barrier displacement processes-including river dynamics-which allow small populations to differentiate and disperse into secondary contact.

Identifiers

PMID35394835
PMCPMC8993111
OpenAlexW4226267572

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.