Evidence map›Paper›PMID 34155114›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Environmental drivers of annual population fluctuations in a trans-Saharan insect migrant.

Gao Hu, Constanti Stefanescu, Tom H Oliver, David B Roy, Tom Brereton, Chris Van Swaay, Don R Reynolds, Jason W Chapman

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
14.3field-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

27 citing papers in PubMed, 85 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Lords of the flies: dipteran migrants are diverse, abundant and ecologically important.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  5. Article
  6. Protected area coverage of the full annual cycle of migratory butterflies.Conservation biology : the journal of the Society for Conservation Biology · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The Afrotropical breeding grounds of the Palearctic-African migratory painted lady butterflies (Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Article
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 7 institutions in 4 countries.

Gao HuDepartment of Entomology, College of Plant Protection, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China; hugao@njau.edu.cn canliro@gmail.com j.chapman2@exeter.ac.uk.ORCID 0000-0002-1000-5687
Constanti StefanescuNatural Sciences Museum of Granollers, E08402 Granollers, Catalonia, Spain; hugao@njau.edu.cn canliro@gmail.com j.chapman2@exeter.ac.uk.ORCID 0000-0001-8952-7869
Tom H OliverSchool of Biological Sciences, University of Reading, Reading RG6 6AS, United Kingdom.
David B RoyUK Centre for Ecology and Hydrology, Crowmarsh Gifford OX10 8BB, United Kingdom.ORCID 0000-0002-5147-0331
Tom BreretonButterfly Conservation, Wareham BH20 5QP, United Kingdom.
Chris Van SwaayDutch Butterfly Conservation, NL-6700 AM Wageningen, Netherlands.ORCID 0000-0003-0927-2216
Don R ReynoldsNatural Resources Institute, University of Greenwich, Chatham ME4 4TB, United Kingdom.ORCID 0000-0001-8749-7491
Jason W ChapmanDepartment of Entomology, College of Plant Protection, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China; hugao@njau.edu.cn canliro@gmail.com j.chapman2@exeter.ac.uk.
Nanjing Agricultural University · CNButterfly Conservation · GBDutch Butterfly Conservation · NLHospital General de Granollers · ESRothamsted Research · GBUK Centre for Ecology & Hydrology · GBUniversity of Reading · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many latitudinal insect migrants including agricultural pests, disease vectors, and beneficial species show huge fluctuations in the year-to-year abundance of spring immigrants reaching temperate zones. It is widely believed that this variation is driven by climatic conditions in the winter-breeding regions, but evidence is lacking. We identified the environmental drivers of the annual population dynamics of a cosmopolitan migrant butterfly (the painted lady

Indexed as

EnvironmentAfrica, NorthernAnimal MigrationAnimalsButterfliesComputer SimulationDesert ClimateEuropeGeographyMediterranean RegionPopulation DensityPopulation DynamicsSeasonsWindinsect migrationLepidopterapainted lady butterflypopulation dynamics

Identifiers

PMID34155114
PMCPMC8256005
OpenAlexW3175716147

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.