Figure 4
Relationship between temperature and the estimated day at which 50% of eggs laid on a given day would become overwintering individuals (the “switching” day). (a) Correlation between the mean temperature for 10 days from July 23 to August 1 or 14 days from July 19 to August 1 and the switching day. (b) Daily change in correlation coefficients between every 10 (14)-day mean temperature and the switching day each year. The curved line indicates that there was a high correlation between the mean temperature in mid- and late July and the switching day in 2013–2016.
