Table 1.

Results of principal components analysis for male CHCs. Compounds with a loading factor > 0.25 were classified as biologically significant and are shown in bold (Tabachnick & Fidell, 1989). CHCs are listed in ascending order of chain length

		PC1	PC2	PC3
	Eigenvalue	14.501	3.442	1.394
	% variance	60.423	14.341	5.808

Peak no.	Loadings
	Compound ID
1	C25	0.541	−0.062	0.732
2	11‐MeC25	0.797	0.396	−0.096
3	3‐MeC25	0.758	0.385	0.408
4	C26	0.882	−0.261	0.230
5	11‐MeC26	0.825	0.439	−0.091
6	5‐C26‐ene	0.458	0.246	−0.176
7	C27	0.739	−0.387	0.240
8	11‐MeC27	0.869	0.358	0.149
9	Unknown	0.792	0.056	−0.249
10	11,15‐diMeC27	0.654	0.355	−0.172
11	3‐MeC27	0.911	−0.019	0.257
12	C28	0.862	−0.378	−0.006
13	C29	0.738	−0.594	0.079
14	13‐MeC29	0.890	0.201	0.019
15	11,15‐diMeC29	0.772	−0.568	−0.030
16	3‐MeC29	−0.711	0.537	0.323
17	C30	0.723	0.246	−0.302
18	C31	0.669	−0.661	−0.153
19	15‐MeC31	0.893	0.288	−0.067
20	3,19,3,17‐diMeC31	0.771	0.389	−0.221
21	3‐MeC31	0.675	−0.630	−0.186
22	4,12‐diMeC31	0.828	0.013	−0.102
23	11‐MeC33	0.880	0.216	0.137
24	15,17‐diMeC33	0.827	0.284	−0.101