1. Food and fitness: associations between crop yields and life-history traits in a longitudinally monitored pre- industrial human population by Adam D. Hayward, Jari Holopainen, Jenni E. Pettay, and Virpi Lummaa Proceedings B Volume 279(1745):4165-4173 October 22, 2012 ©2012 by The Royal Society

2. Annual variation in rye (black line) and barley (grey line) grain yields from Valkila, calculated as the amount of grain yielded as a multiple of the amount of grain sown. Adam D. Hayward et al. Proc. R. Soc. B 2012;279:4165-4173 ©2012 by The Royal Society

3. Generalized linear mixed-effects model predictions for the effects of crop yields on mortality in males and females in Ikaalinen. Adam D. Hayward et al. Proc. R. Soc. B 2012;279:4165-4173 ©2012 by The Royal Society

4. Generalized linear mixed-effects model predictions for effects of crop yield on mortality in Tyrvää males and females. Adam D. Hayward et al. Proc. R. Soc. B 2012;279:4165-4173 ©2012 by The Royal Society