Evidence map›Paper›PMID 29467264›Full record

ArticleProceedings. Biological sciences2018

Macroevolutionary patterning of woodpecker drums reveals how sexual selection elaborates signals under constraint.

Meredith C Miles, Eric R Schuppe, R Miller Ligon, Matthew J Fuxjager

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–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

14 citing papers in PubMed.

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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

4 authors.

Meredith C MilesDepartment of Biology, Wake Forest University, Winston-Salem, NC 27101, USA.ORCID 0000-0002-7307-0195
Eric R SchuppeDepartment of Biology, Wake Forest University, Winston-Salem, NC 27101, USA.ORCID 0000-0001-5221-6362
R Miller LigonDepartment of Biology, Wake Forest University, Winston-Salem, NC 27101, USA.
Matthew J FuxjagerDepartment of Biology, Wake Forest University, Winston-Salem, NC 27101, USA mfoxhunter@gmail.com.ORCID 0000-0003-0591-6854

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sexual selection drives elaboration in animal displays used for competition and courtship, but this process is opposed by morphological constraints on signal design. How do interactions between selection and constraint shape display evolution? One possibility is that sexual selection continues exaggeration under constraint by operating differentially on each signal component in complex, modular displays. This is seldom studied on a phylogenetic scale, but we address the issue herein by studying macroevolutionary patterning of woodpecker drum displays. These territorial displays are produced when an individual rapidly hits its bill on a hard surface, and drums vary across species in the number of beats included (length) and the rate of drumbeat production (speed). We report that species body size limits drum speed, but not drum length. As a result of this biomechanical constraint, there is less standing variation in speed than length. We also uncover a positive relationship between sexual size dimorphism and the unconstrained trait (length), but with no effect on speed. This suggests that when morphology limits the exaggeration of one component, sexual selection instead exaggerates the unconstrained trait. Modular displays therefore provide the basis for selection to find novel routes to phenotypic elaboration after previous ones are closed.

Indexed as

Animal CommunicationBiological EvolutionMating Preference, AnimalAnimalsBirdsBody SizeMalePhylogenyanimal behaviourconstraintsexual selectionsignal design

Identifiers

PMID29467264
PMCPMC5832706

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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.