Evidence map›Paper›PMID 21247939›Full record

ArticleBiology letters2011

Condition- and parasite-dependent expression of a male-like trait in a female bird.

J Martinez-Padilla, P Vergara, L Pérez-Rodríguez, F Mougeot, F Casas, S C Ludwig, J A Haines, M Zeineddine, S M Redpath

Abstract read
In one paragraph

Article in Biology letters, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
7.5field-weighted citation impact, top 3% 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

7 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Diversity in warning coloration: selective paradox or the norm?Biological reviews of the Cambridge Philosophical Society · 2019
    Review
  3. Review
  4. Article
  5. Article
  6. The evolution of female ornaments and weaponry: social selection, sexual selection and ecological competition.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    Review
  7. 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

9 authors at 4 institutions in 3 countries.

J Martinez-PadillaDepartment of Evolutionary Ecology, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain. j.mart@mncn.csic.es
P Vergara
L Pérez-Rodríguez
F Mougeot
F Casas
S C Ludwig
J A Haines
M Zeineddine
S M Redpath
University of Aberdeen · GBMuseo Nacional de Ciencias Naturales · ESEstacion Experimental de Zonas Aridas · ESKonrad Lorenz Institute for Evolution and Cognition Research · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In many species, females display brightly coloured and elaborate traits similar to those that males use in intra- and inter-sexual selection processes. These female characters are sometimes related to fitness, and might function as secondary sexual characteristics that have evolved through sexual selection. Here, we used descriptive data from 674 females in 10 populations and an experimental removal of Trichostrongylus tenuis parasites in four populations, to examine the effects of season, age, condition, and parasites on the size of supra-orbital combs displayed by female red grouse Lagopus lagopus scoticus. We found that comb size (i) was greater during the breeding than the non-breeding season, (ii) was greater in adult than in young females, (iii) was positively correlated with body condition, and (iv) negatively correlated with parasite abundance. Experimentally, we showed that comb size increased proportionally to the number of worms removed after parasite dosing. Our findings provide a better understanding of proximate mechanisms behind the expression of a male-like trait in females, and we discuss its possible function as a female ornament.

Indexed as

Host-Parasite InteractionsSeasonsAgingAnimalsComb and WattlesFemaleGalliformesMaleTrichostrongylus

Identifiers

PMID21247939
PMCPMC3097857
OpenAlexW2151237180

What OpenQuestion holds

Textmetadata
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.