Evidence map›Paper›PMID 26739567›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

A rigorous comparison of sexual selection indexes via simulations of diverse mating systems.

Jonathan M Henshaw, Andrew T Kahn, Karoline Fritzsche

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Diagnosing confounded Bateman gradients.Evolution; international journal of organic evolution · 2025
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  15. Sexual selection after gamete release in broadcast spawning invertebrates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  16. Article
  17. Sexual selection, phenotypic plasticity and female reproductive output.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Review
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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

3 authors.

Jonathan M HenshawDivision of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Canberra ACT 0200, Australia; jonathan.henshaw@anu.edu.au.ORCID 0000-0001-7306-170X
Andrew T KahnDivision of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Canberra ACT 0200, Australia;
Karoline FritzscheInstitute of Zoology, University of Graz, Graz 8010, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sexual selection is a cornerstone of evolutionary theory, but measuring it has proved surprisingly difficult and controversial. Various proxy measures--e.g., the Bateman gradient and the opportunity for sexual selection--are widely used in empirical studies. However, we do not know how reliably these measures predict the strength of sexual selection across natural systems, and most perform poorly in theoretical worst-case scenarios. Here we provide a rigorous comparison of eight commonly used indexes of sexual selection. We simulated 500 biologically plausible mating systems, based on the templates of five well-studied species that cover a diverse range of reproductive life histories. We compared putative indexes to the actual strength of premating sexual selection, measured as the strength of selection on a simulated "mating trait." This method sidesteps a key weakness of empirical studies, which lack an appropriate yardstick against which proxy measures can be assessed. Our model predicts that, far from being useless, the best proxy measures reliably track the strength of sexual selection across biologically realistic scenarios. The maximum intensity of precopulatory sexual selection s'max (the Jones index) outperformed all other indexes and was highly correlated with the strength of sexual selection. In contrast, the Bateman gradient and the opportunity for sexual selection were poor predictors of sexual selection, despite their continuing popularity.

Indexed as

AnimalsFemaleMaleMating Preference, AnimalModels, BiologicalReproductionSpecies Specificitydistributional selection differentialindex of resource monopolizationMorisita indexopportunity for selectionselection gradient

Identifiers

PMID26739567
PMCPMC4725529

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.