Fig 2. Proposed individual life course and health data to parameterize phenotype-demography functions for the construction of integral projection models for a nonhuman primate population. Individuals are monitored from one year (time t ) to the next (t +1). Sociality is defined by social status as a categorical variable of two levels, \(s\) and \(s^{\prime}\). Each year, demographic performance (i.e., survival, growth, reproduction) and cognitive and physical health phenotypes (i.e., looking time, body mass) are recorded. Finally, demographic variables are modeled as a function of health phenotypes using generalized linear models. This can be computed for different sexes.