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1·Oreochromis niloticus is the dominant species in freshwaters of South China.

尼罗罗非鱼（Oreochromis niloticus）是我国华南淡水中的优势种。

2·Analyzing the longer term data, the researchers found that two types of diets were linked with certain dominant species of guts bugs.

通过对长期实验数据分析，研究员们发现有两类食物与人体某些潜伏细菌相关。

3·And the statistics of 33 species of birds, by means of meeting frequency index, show that there are 5 dominant species, 8 common species and 20 rare species.

并对33种鸟采用遇见频次指数法进行数量统计，其中优势种5种，常见种8种，稀有种20种。

4·The community in shrub forest owned both the characteristics of natural secondary forest and farmland, its dominant species were yellow mouse and squirrel too.

灌木疏林林地群落兼有天然次生林的啮齿动物群落和农田啮齿动物群落的特性，优势种为达乌尔黄鼠和松鼠类。

5·Among them, Trichogramma evanescens, Apanteles sp. and Brachymeria obscurata were dominant species with the highest parasitizations of 30%, 80% and 65% respectively.

广赤眼蜂、涓夜蛾绒茧蜂、广大腿小蜂分别为卵期、幼虫期和蛹期的天敌优势种，其最高寄生率分别为30 %、80 %和65 %。

6·As the dominant species on Earth, it is our responsibility to use that position wisely and destroy as little as possible while still assuring the survival of mankind.

作为地球上的主导物种，我们的责任在于明智地使用我们的这一地位，在确保人类自身生存的条件下尽可能少地毁灭其他物种。

7·In order to identify the dominant species in Han-jiang diatom, the micrograph and the valve picture under electron microscope of the dominant species was investigated.

为确定汉江水华硅藻优势种的分类地位，对该水华硅藻的形态特征进行电镜观察，结果表明该藻与小环藻属、冠盘藻属比较相似。

8·Many ancient relic species centrally distributed in the area, most of them were the constructive or dominant species of desert community, their existence played an import.

该地区集中分布着一批古老残遗物种，这些物种大多为群落的建群种或优势种，对维持草原化荒漠区脆弱的生态系统具有重要作用。

9·The oak tree in this example is therefore called the dominant species but there are also many other types of plants, such as bushes, small trees, mosses, lichens and algae.

此例中的橡树因而被称为优势物种，但也有许多其他种类的植物，像灌木、小树、苔藓、地衣和藻类。

10·The species of cladoceran and copepod in Shiquan River are fewer. From the specimens we observed 5 families 8 genus 18 species of cladoceran and the dominant species are A.

狮泉河的枝角类和桡足类种类很少，所采样品仅检出枝角类5科8属18种，优势种类为尖额溞和盘肠溞；