Maternal effect senescence and caloric restriction interact to affect fitness through changes in life history timing.

ABSTRACT: Environmental factors and individual attributes, and their interactions, impact survival, growth and reproduction of an individual throughout its life. In the clonal rotifer Brachionus, low food conditions delay reproduction and extend lifespan. This species also exhibits maternal effect senescence; the offspring of older mothers have lower survival and reproductive output. In this paper, we explored the population consequences of the individual-level interaction of maternal age and low food availability. We built matrix population models for both ad libitum and low food treatments, in which individuals are classified both by their age and maternal age. Low food conditions reduced population growth rate ( Δλ=-0.0574 ) and shifted the population structure to older maternal ages, but did not

SUBMITTER: Hernandez CM 

PROVIDER: S-EPMC11730777 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature