Figure 2. Group size distribution experienced by individuals in a momomorphic population with trait value $z$, for the aggregation process based on adhesion. .

The size of each patch is $T=100$. The distribution is composed of a fraction $1-z$ of ungrouped individuals ($n=1$) and a binomial distribution of grouped individuals centered on $n=zT$. Here, we display this distribution for 5 distinct values of $z$.

DOI: http://dx.doi.org/10.7554/eLife.08595.004