In modeling, the diapause can be defined as a functional trait which is any morphological, physiological or phenological feature measurable at an individual level (Violle et al. 2007) that can either be the result of external pressures (response trait, Hébert et al. 2016) or have an impact on the ecosystem properties (effect trait, Hébert et al. 2016). This effect trait involves two main categories of processes, i.e. the lipid metabolism and the ontogenetic vertical migration.