Figure 5.

Fitness landscapes of transgenerational precipitation alleles for twelve sites across the United States. Sites with low optimal parental effects (d, i) have only very subtle fitness differences associated with changes in the multigeneration persistence (y‐axis) due to the minor role in any form of transgenerational effect on fitness in these cases. More defined fitness peaks tend to occur in areas where more substantialtransgenerational effects are optimal (e, g, j, k, l). In sites with moderately positive (a,c,h) or negative (f) optimal transgeerational plasticity, fitness peaks are less defined as the effects of plasticity alleles are lower. In some cases, bimodal fitness landscapes arise (b) where lines with either positive (with high persistence) or negative (with low persistence) transgenerational persistence have higher fitness than lines with no transgenerational inheritance