TABLE 2 in Rhizotrogus ruzzantei, a new species from southwestern Sardinia (Italy), with biogeographic considerations on the Sulcis-Iglesiente subregion and Scarabaeoidea endemics of Sardinia (Coleoptera: Scarabaeidae: Melolonthinae: Rhizotrogini)

TABLE 2. Results of PERMANOVA testing interspecific differences between Rhizotrogus genei Blanchard (n=28) and R. ruzzantei sp. nov. (n = 23) across eight morphological characters where df is the degrees of freedom, MS is the mean squares, F-ratio quantifies the strength of each effect. Significance codes: (*) p ≤ 0.01, (**) p ≤ 0.05. Source of variationdfMSFVariance component (%)Character71032.84092.1***80.46Species12.4049.52**1.84Character x Species76.371125.24***8.76Residual3920.25239Total407表2 置换多元方差分析（PERMANOVA）结果：基于8个形态性状，比较布兰查德定名的根瘤金龟（*Rhizotrogus genei* Blanchard，n=28）与新种鲁赞特根瘤金龟（*R. ruzzantei* sp. nov.，n=23）的种间差异。其中df为自由度，MS为均方，F比用于量化各效应的强度。显著性标记规则：(*)表示p≤0.01，(**)表示p≤0.05。 | 变异来源 | 自由度 | 均方 | F比 | 方差组分（%） | |----------------|--------|------------|-------------|--------------| | 性状 | 7 | 1032.8409 | 2.1*** | 80.46 | | 物种 | 1 | 2.404 | 9.52** | 1.84 | | 性状×物种 | 7 | 6.371 | 125.24*** | 8.76 | | 残差 | 39 | 20.252 | | 39 | | 总计 | 40 | 7 | | |