In three levels of trophic relationships of plant herbivore natural enemy , parasitic wasps were often subject to being affected by the other two trophic levels .
在植物植食性昆虫寄生蜂三级营养关系链中,寄生蜂的行为常常受到其他两营养级的作用。
Through analysis of the development and present state of water eutrophication in yanghe reservoir , the water eutrophication was evaluated comprehensively by using trophic status indices .
摘要在分析洋河水库富营养化发展及现状的基础上,采用营养状态指数法对其营养状况进行综合评价。
Explain the results of energy transfer between food chains and the effect on the formation of trophic levels using the principles of thermodynamic .
以热力学定律解释食物链中能量传递之结果及对营养层级形成之影响.
If the situation go on like this , we will not drew in a breath of fresh air , drink pure water , and eat trophic food .
长此下去,我们将呼吸不到新鲜空气,喝不到纯净的谁,吃不到营养的食物。
Effects of volatiles from different trophic level on foraging behavior of aphidius avenae .
不同营养层次挥发物对燕麦蚜茧蜂寄主搜寻行为的影响。
Stable c and n isotopic composition of cold-water coral from the newfoundland and labrador continental slope : examination of trophic , depth and spatial effects .
来自纽芬兰和拉布拉多大陆坡冷水珊瑚中稳定的碳同位素和氮成分:营养、深度和空间效果的检验。
Defoliation-induced changes in carbon allocation and root soluble carbon concentration in field-grown lolium perenne plants : do they affect carbon availability , microbes and animal trophic groups in soil ?
落叶处理改变黑麦草碳分配和根部可溶性糖浓度:是否影响土壤中的碳可用性、土壤微生物及营养动物群?
The course covers productivity and biogeochemical cycles in ecosystems , trophic dynamics , community structure and stability , competition and predation , evolution and natural selection , population growth and physiological ecology .
Abstract based on nine-time investigation of current eutrophication status of lake taihu during1994-1995 , this paper evaluated the trophic levels in the different periods and analyzed the development of the main nurtient content in the nearest 35 years .
Macrophages are educated by the tumour microenvironment , so that they adopt a trophic role that facilitates angiogenesis , matrix breakdown and tumour-cell motility - all of which are elements of the metastatic process .