Fig. 2
From: Amphibian breeding phenology influences offspring size and response to a common wetland contaminant
Temperatures and calling dates at wood frog collection sites; Average daily temperatures and wood frog egg collection days for early and late cohorts in 2018 (blue) and 2019 (red), respectively. Temperatures for the wood frog breeding sites were downloaded from Wunderground.com. Gray highlight represents days designated as winter for the northern hemisphere (December 21st-March 20th). Blue and red shaded boxes represent calling periods for 2018 and 2019 wood frogs (personal communications, J. Hua), respectively. Blue and red arrows represent collection dates for 2018 and 2019 wood frogs, respectively