The abstract is read at the publisher; the summary is JClub's.
In Gryllus bimaculatus, parental age at reproduction is linked to offspring pace-of-life, with later-conceived offspring developing faster and showing improved reproductive success despite no reduction in offspring longevity.
- Why it matters: The work addresses whether nongenetic parental age effects produce a Lansing effect via higher early mortality or accelerated senescence, which would constrain fitness after conception or after maturity.
- What they did: Parents were exposed to one of three experimental temperatures, and offspring were followed in a longitudinal within-parent design to test how parental age shaped initial mortality versus actuarial senescence and whether effects depended on parental thermal environment.
- The result: Across thermal environments, earliest- and latest-conceived offspring differed demographically: later-conceived offspring had accelerated development, smaller adult mass, improved reproductive success, and extended adult lifespans via delayed onset and slower progression of actuarial senescence.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.