Individual variation of the masticatory system dominates 3D skull shape in the herbivory-adapted marsupial wombats

Table 2 Summaries of the principal component (PC) analyses, Procrustes ANOVA(allometry) analyses, two-block partial least squares (2BPLS) analyses, and correlation statistics between PLS 1 scores with the species’ PC1 scores and centroid sizes. n, number of specimens used in the analyses; R², coefficient of determination of linear models; t, t-statistic of correlation test; p: p-value, CW common wombat; NHNW northern hairy-nosed wombat; SHNW southern hairy-nosed wombat

	n	PC1%	Allometry			2BPLS		PLS1 scores~PC1 scores			PLS1 scores~Csize
			R ²	F	p	n	r-PLS	cor	t	p	cor	t	p
Cranium
Common	24	23.49	0.05	1.133	0.283	18	0.85	−0.83	−5.93	0.000	−0.046	− 0.19	0.86
NHNW	23	21.56	0.11	3.079	0.001**	11	0.93	−0.7	−2.93	0.017	−0.57	−2.1	0.07
SHNW PC2, SHNW	24	25.92	0.049	1.138	0.305	19	0.93	0.19 0.89	0.81 8.05	0.43 0.000	−0.27	−1.16	0.26
Mandible
Common	21	23.79	0.59	1.188	0.263			0.99	22.508	0.000	0.09	0.36	0.72
NHNW	13	25.88	0.118	1.337	0.148			−0.72	−3.16	0.012	−0.58	−2.15	0.06
SHNW	21	18.93	0.091	1.905	0.019*			0.89	7.67	0.000	−0.6	−3.08	0.007

ISSN: 1742-9994