Table 3.

Univariate ANOVA results for MANOVA tests with P < 0.10

Model ID	x	y	Mean values		df	SS	F	P
			Female	Male
1	Sex	δ13Cfeces	−28.61	−28.36	1,57	0.904	17.570	<0.001*
		% Nfeces	2.20	2.04	1,57	0.357	5.292	0.025*
2	Sex	δ13Ccollagen	−21.96	−21.82	1,38	0.171	1.536	0.223
		δ15Ncollagen	3.94	4.46	1,38	2.583	4.905	0.033*
3.1	Sex, CR	δ13Cfeces	−28.76	−28.38	1,27	1.056	18.670	<0.001*
		%Nfeces	2.46	2.14	1,27	0.713	20.410	<0.001*
4.2	Sex, NR	δ13Ccollagen	−21.88	−21.40	1,13	0.691	11.550	0.005*
		δ15Ncollagen	3.66	3.82	1,13	0.076	0.228	0.641

Significant difference in δ¹³C values between males and females indicates different dietary sources during each respective time period. Higher %N_feces indicates higher quality diets during the mating season, whereas lower δ¹⁵N_collagen indicates higher quality diet during the multi-year time period. Stable isotope values are reported to the nearest 0.01‰, and %N_feces is reported to the nearest 0.01%. Columns labeled “x” and “y” denote the independent and dependent variables, respectively, for each model