Evidence map›Paper›PMID 30891214›Full record

ArticleEcology and evolution2019

Eumelanin levels in rufous feathers explain plasma testosterone levels and survival in swallows.

Emi Arai, Masaru Hasegawa, Megumi Sato, Hidetsugu Sakai, Shosuke Ito, Kazumasa Wakamatsu

Open access · goldAbstract read
In one paragraph

Article in Ecology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 20 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Emi AraiDepartment of Evolutionary Studies of Biosystems Sokendai (The Graduate University for Advanced Studies) Hayama-machi Kanagawa Japan.ORCID https://orcid.org/0000-0003-2164-8626
Masaru HasegawaDepartment of Evolutionary Studies of Biosystems Sokendai (The Graduate University for Advanced Studies) Hayama-machi Kanagawa Japan.ORCID https://orcid.org/0000-0002-8731-949X
Megumi SatoDepartment of Biology, School of Dentistry Nihon University Tokyo Japan.
Hidetsugu SakaiDepartment of Biology, School of Dentistry Nihon University Tokyo Japan.
Shosuke ItoDepartment of Chemistry Fujita Health University School of Health Sciences Toyoake Aichi Japan.ORCID https://orcid.org/0000-0001-9182-5144
Kazumasa WakamatsuDepartment of Chemistry Fujita Health University School of Health Sciences Toyoake Aichi Japan.ORCID https://orcid.org/0000-0003-1748-9001
Fujita Health University · JPNihon University · JPThe Graduate University for Advanced Studies, SOKENDAI · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pigment-based plumage coloration and its physiological properties have attracted many researchers to explain the evolution of such ornamental traits. These studies, however, assume the functional importance of the predominant pigment while ignoring that of other minor pigments, and few studies have focused on the composition of these pigments. Using the pheomelanin-based plumage in two swallow species, we studied the allocation of two pigments (the predominant pigment, pheomelanin, and the minor pigment, eumelanin) in relation to physiological properties and viability in populations under a natural and sexual selection. This is indispensable for studying the evolution of pheomelanin-based plumage coloration. Pheomelanin and eumelanin share the same pathway only during their initial stages of development, which can be a key to unravel the functional importance of pigment allocation and thus of plumage coloration. Using the barn swallow,

Indexed as

pigment‐based colorationplasma testosteroneplumage ornamentssurvivalswallowthroat patch

Identifiers

PMID30891214
PMCPMC6405925
OpenAlexW2913621618

What OpenQuestion holds

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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.