Figure 3

Background colour choice and behaviour under threat. Mean number of tadpoles of Ololygon machadoi (A,C,E) and Bokermannohyla martinsi (B,D,F) that used the same initially chosen colour (Remained) or changed background colour (Changed) after being disturbed in each of three treatments (given by combinations of two colours): dark/yellow (A,B), blue/yellow (C,D), blue/dark (E,F). Bars represent SDs.