The understanding of the effect of insecticides on spiders in farmlands is ecologically important fur comprehensively controlling pests. 摘要农药对农田蜘蛛的生态效应是进行农田害虫综合防治的生态学基础。
A close relationship might exist between the thrombolite structure and ecological effects of grazing and burrowing metazoans. 当前的资料表明，在凝块石构造与食草和钻孔动物生态效应之间似乎存在着一种紧密的联系。
