Preference of omnivorous natural enemy Cyrtopeltis tenuis Reuter for plants in greenhouses in a tritrophic system;

Taking bark beetle and long-horned beetle as the examples,this paper summarized the research progress on the tritrophic system of tree-trunkborer-insect natural enemy association,with the past ten years research results on semiochemicals release source,active compounds identification,and release dynamics of volatiles introduced.

Distribution features of nutrients and nutrient structure in the East China Sea and the Yellow Sea in spring and autumn;

Dynamics in composition,trophic structure and diversity of an insect community during the processes of succession and restoration;

The measurement of ecosystem trophic structure diversity;

The determining methods of stable carbon and nitrogen isotopes are briefly summarized and the application of stable isotopes to ecosystems about carbon sources, energy flow, trophic structure, the bioaccumulation of pollutants and the stability variations of ecosystems are systematically discussed.

The Research of Nutrient Structure and Its Function on the Succession of Phytoplankton Predominant Species in the High Frequent Harmful Algae Blooms Occurrence Areas in East China Sea;

The distribution features of nutrient structure and nutrient limitations in the north of Yellow Sea were discussed based on the data collected from July 2006 to October 2007.