水生细菌对原生动物的反捕食对策

The research progress in the defense strategies of aquatic bacteria to protozoa was reviewed in this paper. Aquatic bacteria can reduce or avoid grazing mortality from protozoa through changing size or shape,reducing cell surface hydrophobicity,reducing mobility or searching refuges. It is the main trends of the field in the future to study the coevolution mode of aquatic bacteria and protozoa. Ref

云南臭蛙生活习性观察

研究方法 采取定点、定期、定时相结合观察及室内饲养观察的方法。工作区域选在毕节后箐乡、阴底乡、赫章古基乡。在工作区域内设置后箐河、野鸡河、岔河等大中型流溪作为观察点。自1997年4月——6月,每周观察一次,在岔河进行两天全天观察,每小时观察一次;并记录当时的气温、水温、湿度、PH值、活动个体数,以确定其活动时间、范围、方式、高峰及活动与天气的关系。