. 2016 Jan 14;4:e1578. doi: 10.7717/peerj.1578

Table 5. Trophic niche breadth of sea urchins calculated by SIBER analysis of muscle values.

SEAc: corrected standard ellipse area. The right column shows statistical differences in SEA.

Species	SEAc	Ellipses areas: group differences probability (%)
D. mexicanum (LA)	0.005	1 vs. 2 (10.4)^a
D. mexicanum (PS)	0.218	1 vs. 2 (10.4)^a
E. thouarsii (LA)	0.250	1 vs. 2 (52.0)^a
E. thouarsii (PS)	0.457	1 vs. 2 (52.0)^a

Notes.

Group 1: Los Ahorcados (LA); Group 2: Perpetuo Socorro (PS).