Evidence map›Paper›PMID 32514357›Full record

ArticleMovement ecology2020

Autumn migration direction of juvenile willow warblers (

Tianhao Zhao, Mihaela Ilieva, Keith Larson, Max Lundberg, Júlio M Neto, Kristaps Sokolovskis, Susanne Åkesson, Staffan Bensch

Open access · goldAbstract read
In one paragraph

Article in Movement ecology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

10 citing papers in PubMed, 55 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Tianhao ZhaoDepartment of Biology, Molecular Ecology and Evolution Laboratory, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Mihaela IlievaInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin str, 1113 Sofia, Bulgaria.
Keith LarsonClimate Impacts Research Centre, Department of Ecology and Environmental Sciences, Umeå University, 901 87 Umeå, SE Sweden.
Max LundbergDepartment of Biology, Molecular Ecology and Evolution Laboratory, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Júlio M NetoDepartment of Biology, Molecular Ecology and Evolution Laboratory, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Kristaps SokolovskisDepartment of Biology, Molecular Ecology and Evolution Laboratory, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Susanne ÅkessonDepartment of Biology, Evolutionary Ecology Unit, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Staffan BenschDepartment of Biology, Molecular Ecology and Evolution Laboratory, Lund University, Ecology Building, 223 62 Lund, SE Sweden.
Lund University · SEBulgarian Academy of Sciences · BGUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundsGeographic regions, where two closely related taxa with different migration routes come into contact, are known as migratory divides. Hybrids originating from migratory divides are hypothesized to migrate intermediately relative to the parental populations. Few studies have tested this hypothesis in wild birds, and only in hybrids that have completed the migration back to the breeding grounds. Here, we make use of the well-established migration routes of willow warblers (

methodsBlood and feather samples were collected from wintering birds in Africa (

resultsThe observed combined genotypes of the two SNPs were associated with the known migration routes and wintering distributions of

conclusionsOur genetic approach to assign individuals to subspecies and hybrids allowed us to investigate migration direction in juvenile birds on their first migration, which should better reflect the innate migratory direction than studies restricted to successful migrants. The excess of hybrids in Italy, suggests that they employ an intermediate route relative to the parental populations. Our qPCR SNP genotyping method is efficient for processing large sample sizes, and will therefore be useful in migration research of species with known population genetic structure.

Indexed as

Bird migrationGenetic migration programHybrid genotypeIntermediate routeMigratory dividePhylloscopus trochilusSNP genotyping

Identifiers

PMID32514357
PMCPMC7257155
OpenAlexW3029682009

What OpenQuestion holds

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LicenceCC BY
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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.