Pollack [59] described a two - sex model in which a «
mating preference matrix», [Mij], connected male and female life histories.
The mating preference matrix represented the propensity for a male of age i to form a bond with a female of age j, which might have yielded offspring if both were fertile.
The appropriate «
mating preference matrix» [Mij] is applied to potential parents (based on their age classes i and j) to determine the probability of pair formation.
Such two - sex models are mathematically much more complex than are one - sex models because of the inherent non-linearity introduced by
the mating preference matrix.
Mating pairs were formed according to an age - dependent
mating preference matrix.
Not exact matches
Model AP involved an age indifferent
preference in the formation of
mating pairs («All Pairs»,
matrix MijAP, Table S2), whereas model YP («Young Pairs»,
matrix MijYP, Table S3) involved
preferences between only younger males and younger females (models used indicated by bars in Fig. 1).