ArticleBiological journal of the Linnean Society. Linnean Society of London2020
Connecting the dots: avian eggshell pigmentation, female condition and paternal provisioning effort.
Article in Biological journal of the Linnean Society. Linnean Society of London, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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.
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.
Who cites it
5 citing papers in PubMed.
- Egg Characteristics of Female Common Terns Are Repeatable, and Vary With Maternal Age and Laying Order.Ecology and evolution · 2025Article
- Can explainable AI classify shrike (Laniidae) eggs by uncovering species-wide pigmentation patterns?PloS one · 2025Article
- Decision rules for egg-color-based rejection by two cavity-nesting hosts of the brown-headed cowbird.The Journal of experimental biology · 2023Article
- Avian eggshell coloration predicts shell-matrix protoporphyrin content.Canadian journal of zoology · 2022Article
- How much calcium to shell out? Eggshell calcium carbonate content is greater in birds with thinner shells, larger clutches and longer lifespans.Journal of the Royal Society, Interface · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Differences in avian eggshell pigmentation could be an honest signal of female quality that males use to inform their nestling provisioning effort. We investigated whether among-individual variation in protoporphyrin-based eggshell pigmentation in house wrens (
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.