This spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps,particularly host oak plants.

• 2)入侵地区的种群与该物种原产地的种群相比；遗传上的分化更为强烈.；这种种群结构在空间上的变异可能是被栎瘿蜂开发的资源尤其是栎树寄主在斑块上出现变异的反映