Isotopic composition of C (δ<sup>13</sup>C, ‰) and N (δ<sup>15</sup>N, ‰) by production system and geographic origin. Entries are in the format “mean (sd) letter”. Letter displays show Tukey range test significance for each isotope, among countries (columns). Different letters indicate the group difference of means is significantly different than 0 at the 0.05 level. The <i>p</i>-value column shows a Welch t-test between production systems within each country for each measured variable (rows).
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Isotopic composition of C (δ13C, ‰) and N (δ15N, ‰) by production system and geographic origin. Entries are in the format “mean (sd) letter”. Letter displays show Tukey range test significance for each isotope, among countries (columns). Different letters indicate the group difference of means is significantly different than 0 at the 0.05 level. The p-value column shows a Welch t-test between production systems within each country for each measured variable (rows).
创建时间：
2025-03-12
