Mean ± SE of butterfly density (ha-1) and conservation value index (CVI) of butterfly communities in northwest Indiana by habitat type (n = 5 sites per habitat type).

Within a column, habitats with the same superscript letter are not significantly different from each other (Kruskal-Wallis one-way analysis of variance Dunn’s nonparametric multiple comparisons’ test [44, 45, 50]).在同一列中，带有相同上标字母的生境之间不存在显著统计学差异，该结论通过克鲁斯卡尔-沃利斯单向方差分析（Kruskal-Wallis one-way analysis of variance）与邓恩非参数多重比较检验（Dunn’s nonparametric multiple comparisons test）[44, 45, 50]得出。