Table 3.
Principal component analysis of 60 compounds found in 100 males of Euglossa imperialis collected at Los Tuxtlas, Veracruz, Mexico. Only the eigenvalues of the first three Principal Components (PC) and their explained variance are shown
| Compound | PC 1 | PC 2 | PC 3 |
|---|---|---|---|
| α‐Pinene | 0.124 | 0.135 | −0.190 |
| Camphene | 0.111 | 0.034 | 0.321 |
| Sabinene | 0.118 | 0.180 | −0.063 |
| β‐Pinene | 0.137 | 0.098 | −0.187 |
| β‐Myrcene | 0.118 | 0.191 | −0.167 |
| α‐Phellandrene | 0.125 | 0.190 | −0.158 |
| 3‐Carene | 0.164 | 0.052 | −0.039 |
| p‐Cymene | 0.136 | 0.100 | −0.088 |
| Limonene | 0.117 | 0.147 | −0.182 |
| Eucalyptol | 0.074 | 0.103 | −0.119 |
| β‐Ocimene | 0.105 | 0.227 | −0.081 |
| Benzyl alcohol | 0.145 | 0.025 | −0.051 |
| γ‐Terpinene | −0.020 | −0.002 | 0.003 |
| Terpinolene | −0.018 | 0.013 | −0.001 |
| Phenylethyl alcohol | 0.030 | 0.067 | 0.026 |
| Linalool | 0.171 | −0.177 | −0.048 |
| Menthol | 0.172 | −0.133 | −0.073 |
| 4‐Terpineol | 0.090 | 0.036 | 0.112 |
| α–Terpineol | 0.125 | −0.014 | 0.171 |
| Estragole | 0.148 | −0.185 | −0.053 |
| Menthyl salicylate | 0.174 | −0.117 | −0.098 |
| Ethyl salicylate | 0.113 | 0.074 | −0.057 |
| Thymol | 0.101 | −0.063 | 0.032 |
| Undecanal | 0.177 | 0.038 | 0.030 |
| E,E‐ 2,4‐Decadienal | 0.186 | −0.177 | 0.003 |
| Eugenol | 0.159 | −0.160 | −0.024 |
| Geranylacetate | 0.001 | −0.050 | −0.010 |
| α‐Gurjunene | 0.006 | −0.014 | 0.010 |
| β‐Caryophyllene | 0.052 | 0.127 | 0.005 |
| β‐Cedrene | 0.138 | 0.014 | 0.233 |
| β‐Gurjunene | 0.108 | −0.020 | 0.142 |
| α‐Humulene | 0.153 | 0.057 | 0.252 |
| Allo‐Aromandrene | −0.023 | −0.002 | 0.004 |
| Germacrene D | 0.114 | 0.109 | 0.076 |
| Ledene | 0.076 | −0.121 | 0.052 |
| α‐Farnesene | 0.079 | 0.230 | 0.006 |
| β‐Bisabolene | 0.170 | −0.133 | 0.167 |
| δ ‐Cadinene | 0.154 | 0.190 | 0.179 |
| Epiglobulol | 0.081 | 0.185 | 0.011 |
| (‐)‐Globulol | 0.122 | −0.008 | 0.330 |
| Ledol | 0.112 | 0.030 | 0.315 |
| α‐Bisabolol | 0.215 | −0.070 | 0.016 |
| E,E‐Farnesal | 0.198 | 0.072 | −0.058 |
| Hexahydrofarnesylacetone | 0.148 | 0.104 | −0.035 |
| Hexadecanoic acid, methyl ester | 0.155 | −0.175 | −0.064 |
| Hexadecyl acetate | 0.066 | 0.185 | −0.020 |
| Methyl oleate | 0.150 | −0.011 | −0.116 |
| Octadecanoic acid, methyl ester | 0.146 | −0.177 | −0.022 |
| Linoleic acid | 0.168 | −0.030 | −0.080 |
| Methyl octaclecanoate | 0.109 | 0.166 | 0.151 |
| Oleic acid | 0.104 | 0.239 | −0.004 |
| Ethyl Oleate | 0.184 | −0.118 | −0.061 |
| (E)‐9‐Octadecenoic acid ethyl ester | 0.192 | −0.176 | −0.115 |
| Z‐13‐Octadecen‐1‐ol acetate | 0.164 | −0.209 | −0.075 |
| (Z)‐9‐Tricosene | 0.136 | −0.119 | −0.081 |
| Heptacosane | 0.084 | −0.167 | −0.058 |
| Squalene | 0.091 | −0.100 | −0.077 |
| Unknown 1 | 0.073 | 0.239 | −0.024 |
| Triacontane | 0.111 | 0.031 | 0.332 |
| Unknown 2 | 0.123 | 0.073 | −0.134 |
| Eigenvalue | 14.895 | 8.267 | 6.119 |
| % of Explained variance | 24.83 | 13.77 | 10.19 |