The Contributions of Maternal Age Heterogeneity to Variance in Lifetime Reproductive Output.

ABSTRACT: AbstractVariance among individuals in fitness components reflects both genuine heterogeneity between individuals and stochasticity in events experienced along the life cycle. Maternal age represents a form of heterogeneity that affects both the mean and the variance of lifetime reproductive output (LRO). Here, we quantify the relative contribution of maternal age heterogeneity to the variance in LRO using individual-level laboratory data on the rotifer Brachionus manjavacas to parameterize a multistate age × maternal age matrix model. In B. manjavacas, advanced maternal age has large negative effects on offspring survival and fertility. We used multistate Markov chains with rewards to quantify the contributions to variance in LRO of heterogeneity and of the stochasticity inhe

SUBMITTER: van Daalen SF 

PROVIDER: S-EPMC11416746 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature