Disclaimer: Supplementary materials have been peer-reviewed but not copyedited.

evo12050-sup-0001-AppendixS1.doc58KAppendix S1. Utah Population Database and Individual Fitness.
evo12050-sup-0002-TableS1.doc91KTable S1. Bootstrapped tests for significant means and secular trends.
evo12050-sup-0003-FigureS1.doc31KFigure S1. The number of individuals with complete records increases with birth year. Dark circles indicate the number of individuals (males and females combined) born at that year with records of birth, death, and reproduction. Open circles indicate the percentage of these (measured against the right y-axis) that do not identify both parents.
evo12050-sup-0004-FigureS2.doc31KFigure S2. Ratios of regression coefficients by birth year. Circles represent the ratio of two coefficients. The first is the partial regression coefficient of relative fitness on sex-specific binary mating success. The second is the simple regression coefficient. The dark circles indicate values for males and the open circles represent values for females. Ratios are very close to one throughout the study period.

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