SOURCE-LINKED STUDY SUMMARY
Rooftop Breeding Does Not Consistently Explain Variation in Yolk Testosterone in Herring Gulls.
Abstract summarizedQuality not appraised
- What was studied
- A field study compared egg-yolk testosterone in rooftop- and ground-nesting herring gulls.
- Who / model studied
- Researchers examined the last-laid eggs across the 2023 and 2024 breeding seasons. Sample size is not stated.
- Studied dose & schedule
- Dose and schedule have not yet been extracted for this summary.
- What the study found
- Rooftop nests had higher yolk testosterone in 2023, but no difference was found in 2024. Nest density and measured indicators of maternal quality did not explain variation. This concerns natural hormone allocation in bird eggs.
- Limitations & context
- Study limitations were not stated in the abstract. Methodological quality has not been appraised.
Read summary source ↗ · Prepared 9/15/2026 · AI-assisted, source-based summary
Review record & corrections
Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.
No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.
Inspect the source · Correction policyResearch findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.
Original publication ↗ · DOI: 10.1002/ece3.74269