Table 2.

Results for RMA regression analysis (all variables are log₁₀)

Activity pattern	Y-variable	X-variable	RMA slope	CI	r2	Significant ancova?
scotopic	inner diameter sclerotic ring	orbit depth + sclerotic ring length	0.717	0.634–0.811	0.858	yes
photopic	inner diameter sclerotic ring	orbit depth + sclerotic ring length	0.975	0.852–1.114	0.551	yes
scotopic	inner diameter sclerotic ring	orbit depth + axial sclerotic ring length	0.451	0.356–0.571	0.474	slopes not homogeneous
photopic	inner diameter sclerotic ring	orbit depth + axial sclerotic ring length	0.724	0.603–0.87	0.243	slopes not homogeneous
scotopic	inner diameter sclerotic ring	sclerotic ring length	0.548	0.466–0.646	0.75	slopes not homogeneous
photopic	inner diameter sclerotic ring	sclerotic ring length	0.651	0.552–0.766	0.329	slopes not homogeneous
scotopic	inner diameter sclerotic ring	axial sclerotic ring length	0.443	0.371–0.528	0.709	slopes not homogeneous
photopic	inner diameter sclerotic ring	axial sclerotic ring length	0.606	0.794–1.069	0.284	slopes not homogeneous
scotopic	inner diameter sclerotic ring	orbit depth	0.753	0.638–0.890	0.741	slopes not homogeneous
photopic	inner diameter sclerotic ring	orbit depth	0.751	0.794–1.069	0.448	slopes not homogeneous
scotopic	orbit diameter	orbit depth	0.71	0.619–0.815	0.824	yes
photopic	orbit diameter	orbit depth	0.77	0.707–0.844	0.812	yes
scotopic	orbit diameter	head length	0.874	0.784–1.023	0.533	yes
photopic	orbit diameter	head length	0.895	0.7–1.092	0.575	yes
both	orbit diameter	head length	0.793	0.626–0.916	0.704
scotopic	inner diameter sclerotic ring	head length	0.928	0.737–1.168	0.499	yes
photopic	inner diameter sclerotic ring	head length	1.068	0.911–1.251	0.378	yes
both	inner diameter sclerotic ring	head length	1.24	1.03–1.49	0.524
both	orbit depth + sclerotic ring length	head length	1.03	0.902–1.18	0.747
both	orbit depth	head length	1.03	0.902–1.18	0.747
both	sclerotic ring length	head length	1.24	1.05–1.46	0.623