Table 6. Distribution of facial integration magnitudes as measured by the between-block correlation coefficient of PLS2.

Species/sex	Allometric face (oral-zygomatic PLS 2)				Non-allometric face (oral-zygomatic PLS 2)
	SV		% Cov.	r	SV		% Cov.		r
C. albifrons	0.000106		16.34%	0.93	0.000095		24.1%		0.65
	p<0.0001			p<0.0001	p<0.0001				p = 0.095
C. olivaceus	0.000137		22.15%	0.82	0.0001		21.9%		0.67
	p<0.0001			p = 0.0052	p<0.0001				p = 0.1885
C. apella s.s.	0.000123		7.2%	0.93	0.000128		28%		0.93
	p = 0.0001			p<0.0001	p<0.0001				p = 0.0004
C. libidinosus	0.000134		9.9%	0.96	0.00012		27.2%		0.74
	p<0.0001			p = 0.0005	p<0.0001				p = 0.27
C. nigritus	0.00015		15%	0.93	0.000125		28.1%		0.94
	p<0.0001			p<0.0001	p<0.0001				p<0.0001
Species/sex	Allometric face (maximum modularity PLS2)				Non-allometric face (maximum modularity PLS2)
	SV	% Cov.		r	SV	% Cov.		r
C. albifrons	0.00012	29.9%		0.80	0.000069	18%		0.67
	p<0.0001			p<0.0001	p = 0.0002			p = 0.0018
C. olivaceus	0.00073	16.5%		0.50	0.00008	19.3%		0.67
	p = 0.017			p = 0.26	p<0.0001			p = 0.007
C. apella s.s.	0.000106	10.14%		0.76	0.000084	18%		0.67
	p<0.0001			p<0.0001	p = 0.0001			p = 0.009
C. libidinosus	0.000148	20.9%		0.708	0.000095	23.16%		0.69
	p<0.0001			p = 0.015	p<0.0001			p = 0.007
C. nigritus	0.00016	24.4%		0.74	0.000094	24.56%		0.63
	p<0.0001			p = 0.0003	p<0.0001			p = 0.1

Legend: SV: singular value, r: between-block correlation coefficient,

^%Cov.: percentage of squared between-block covariance explained by this axis.