Evidence map›Paper›PMID 42601878›Full record

ArticleEcology and evolution2026

Age at First Reproduction Predicts Sex-Specific Parasite Infection Trajectories Through Adulthood.

Francisco Ruiz-Raya, Sarah J Burthe, Hannah Ravenswater, Fiona Greco, Olivia Hicks, Mark Newell, Carrie Gunn, Francis Daunt, Emma J A Cunningham

Abstract read
In one paragraph

Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Francisco Ruiz-RayaAshworth Laboratories, School of Biological Sciences, Institute of Ecology and Evolution University of Edinburgh Edinburgh UK.ORCID https://orcid.org/0000-0002-4646-1975
Sarah J BurtheUK Centre for Ecology and Hydrology Penicuik UK.
Hannah RavenswaterAshworth Laboratories, School of Biological Sciences, Institute of Ecology and Evolution University of Edinburgh Edinburgh UK.ORCID https://orcid.org/0000-0003-1273-6595
Fiona GrecoAshworth Laboratories, School of Biological Sciences, Institute of Ecology and Evolution University of Edinburgh Edinburgh UK.
Olivia HicksSchool of Ocean Sciences Bangor University Menai Bridge UK.
Mark NewellUK Centre for Ecology and Hydrology Penicuik UK.
Carrie GunnUK Centre for Ecology and Hydrology Penicuik UK.
Francis DauntUK Centre for Ecology and Hydrology Penicuik UK.
Emma J A CunninghamAshworth Laboratories, School of Biological Sciences, Institute of Ecology and Evolution University of Edinburgh Edinburgh UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parasites can impose substantial fitness costs on hosts, yet infection intensity varies markedly among individuals and across life stages. Age-related variation in parasite burden may reflect shifts in behaviour or physiology that alter exposure and susceptibility, or arise from selective disappearance of heavily infected individuals. Distinguishing between these processes is essential for understanding the ecological and evolutionary consequences of parasitism in wild populations. Age at first reproduction (AFR) is a fundamental life-history trait that shapes lifelong infection dynamics through trade-offs between reproductive investment, somatic maintenance, immune defence and survival. Because reproductive investment and timing often differ between sexes, age at first reproduction may generate sex-specific infection trajectories across adulthood, yet whether early-life reproductive strategies are linked to adult parasite dynamics in a sex-specific manner remains largely unexplored. Using 10 years of individual-based monitoring in European shags (

Indexed as

European shag (Gulosus aristotelis)life‐history trade‐offslongitudinal studynematodesselective disappearancesenescence

Identifiers

PMID42601878
PMCPMC13472769

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.