结构方程模型及其在生态学中的应用
王酉石, 储诚进

A brief introduction of structural equation model and its application in ecology
WANG You-Shi, CHU Cheng-Jin
图4 两种跳甲防治乳浆大戟入侵的事例研究。上图为初始模型, 下图为修正后的模型。(改自Larson & Grace, 2004)
Fig. 4 The bio-control of two flea beetle species (Aphthona lacertosa and A. nigriscutis) on invasive species leafy spurge (Euphorbia esula). The upper panel is for the initial model and the lower for the revised model. (Modified from Larson & Grace, 2004)