The ecological study on biological conservation and sustainable management for endemic predators against a Japan-origin exotic invader

为了阐明原产于日本的入侵性和进攻性捕食者黑毛Harmonia axyridis与相关物种的共存机制，进行了野外和室内实验。从野外调查结果来看，在许多入侵地区的食蚜螨是最常见的食蚜螨。yedoensis与H. axyridis仅在一棵松树上共生，在形态和行为特征上具有专门化。不对称交配干扰对叶氏灌丛小生境和灌丛大生境的形成起重要作用。

To clarify the coexistence mechanism between Japan-origin invasive and aggressive predator Harmonia axyridis and the related species, field and laboratory experiments were performed. From the field survey, H. axyridis was the most common among the aphidophagous predators at many invaded areas. The sibling species H. yedoensis sympatrically coexists with H. axyridis only on a pine tree to specialize at morphological and behavioral traits. The asymmetric mating interference in H. axyridis plays an important role on the limited habitatof H. yedoensis and the large habitat of H. axyridis.