Fig. 3
From: The use of the skylight polarization gradient in young sandhopper’s orientation
(a) Relationship between goodness of orientation (GO) and age of expert and inexpert sandhoppers. Black squares (■), tests with adult individuals under the dome; open squares (□), tests with adult individuals under the sun. Black triangles (▲), tests with inexpert young sandhoppers conducted under the dome; open triangles (△), tests with inexpert young sandhoppers conducted under the sun. Dashed triangles (
), tests with expert young sandhoppers conducted under the dome. (b) The graph shows the difficulty in assuming any radial direction during the experiment. INEX-DOME, inexpert young individuals tested in the dome; EX-DOME, expert young tested in the dome; AD-DOME, adult sandhoppers tested in the dome; INEX-SUN, inexpert young tested under the sun; AD-SUN, adult sandhoppers tested under the sun. See text for further explanations.
