Figure 5

Residual gut mass (A) and gut width (B) in Aratus pisonii (after accounting for body size) as a function of Julian sampling date, proxies for the amount and quality of food consumed, respectively. Symbols indicate sampling site, where circles are Round Island, triangles are Oslo, plus sign is North Causeway, and the multiplication sign is Pepper park. Gray shaded sampling dates indicate periods of new moon, while white indicates full moon.