Comparison of local and landscape variables.

Data are shown for ponds with the smooth newt Lissotriton vulgaris (L.v.) only and those with both L. vulgaris and the crested newt Triturus cristatus (T.c.) (mean ± SE values unequal variance t-test). The “number of wetlands” were square-root transformed values; the other variables are components extracted by of PCAs: see methods for more details. Bold values represent significant differences (α = 0.05).

本数据集仅包含两类统计对象：仅分布普通滑螈（Lissotriton vulgaris，缩写L.v.）的池塘，以及同时分布普通滑螈（L. vulgaris）与冠真螈（Triturus cristatus，缩写T.c.）的池塘，统计分析采用均值±标准误的异方差t检验。其中“湿地数量”为经平方根转换的数值，其余变量均为主成分分析（PCA）提取得到的组分，详细说明请参见研究方法部分。加粗数值代表存在统计学显著性差异（显著性水平α=0.05）。