Evidence map›Paper›PMID 26664691›Full record

ArticleEcology and evolution2015

Poor methodological detail precludes experimental repeatability and hampers synthesis in ecology.

Neal R Haddaway, Jos T A Verhoeven

Abstract read
In one paragraph

Article in Ecology and evolution, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
–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

17 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Mapping molluscan endocrinology: a systematic and critical appraisal.Biological reviews of the Cambridge Philosophical Society · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Closing the knowledge-action gap in conservation with open science.Conservation biology : the journal of the Society for Conservation Biology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Comparative Medicine: An Inclusive Crossover Discipline.The Yale journal of biology and medicine · 2017
    Review
  14. Review
  15. Article
  16. The role of fire in UK peatland and moorland management: the need for informed, unbiased debate.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  17. 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

2 authors.

Neal R HaddawayMISTRA EviEM Royal Swedish Academy of Sciences 114 18 Stockholm Sweden.
Jos T A VerhoevenEcology and Biodiversity Department of Biology Utrecht University Padualaan 8 3584 CH Utrecht The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the scientific method's central tenets of reproducibility (the ability to obtain similar results when repeated) and repeatability (the ability to replicate an experiment based on methods described), published ecological research continues to fail to provide sufficient methodological detail to allow either repeatability of verification. Recent systematic reviews highlight the problem, with one example demonstrating that an average of 13% of studies per year (±8.0 [SD]) failed to report sample sizes. The problem affects the ability to verify the accuracy of any analysis, to repeat methods used, and to assimilate the study findings into powerful and useful meta-analyses. The problem is common in a variety of ecological topics examined to date, and despite previous calls for improved reporting and metadata archiving, which could indirectly alleviate the problem, there is no indication of an improvement in reporting standards over time. Here, we call on authors, editors, and peer reviewers to consider repeatability as a top priority when evaluating research manuscripts, bearing in mind that legacy and integration into the evidence base can drastically improve the impact of individual research reports.

Indexed as

Evidence synthesisexperimental designmeta‐analysisreliabilityresearch legacysusceptibility to biassystematic reviewtransparency

Identifiers

PMID26664691
PMCPMC4667817

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.