Relationships between the emergence and oviposition of ectoparasitoid Spathius agrili Yang and its host emerald ash borer, Agrilus planipennis Fairmaire Study on the Ecological Relationship Between a Red-tide Causative Alga and Three Strains of Bacteria Isolated from Xiamen Harbor The Ecological Relation Between Pinus taiwanensis and Fungi in the Process of Ectomycorrhizae Synthesis Effects of different interplanting widths of wheat and maize on population ecological relation and crops yield The ecological relationships among artificial vegetation communities in Huangguliang small watershed, Lanxian County of Shanxi