[Application of latent root regression method in analysis of predation of predatory natural enemy in paddy field].
A latent root regression model was constructed for analyzing the predation quantity in a coexistence system of four spiders (Pirata subpiraticus, Oedothorax insecticeps, Clubiona japonicola, and Bianor hotingchiehi) with brown planthopper (Nilaparvata lugens). The predation quantity of the spiders in a multi-species coexistence system could be predicted by y = 6.6600 +/- 6.3399(- 0.0138X1* + 0.0895X2. + 0.0078X3* - 0.1067X4* + 0.6742X5*). The result showed that compared to LS regression, the accuracy of predation quantity predicted by the model increased by 10%.
Tang
Jinlong
J
Yangzhou University, Yangzhou 225009. tangj-L@163.com
Wu
Jincai
J
D000704:Analysis of Variance; D000818:Animals; D017753:Ecosystem; D007313:Insecta / Q000502:physiology*; D012275:Oryza / Q000502:physiology*; D018517:Plant Roots; D011235:Predatory Behavior / Q000502:physiology*; D013112:Spiders / Q000145:classification / Q000502:physiology*