本文首先对复合种群的已有概念、理论和模型做了全面的分析和总结；
First, the present full-scal concepts, theories and models of metapopulation were analyzed and summarized;
对小型哺乳动物种群数量周期性波动的外因调节假说进行介绍，概述了食物假说、捕食假说和复合因子假说的主要内容和研究进展。
This paper reviewed the new progress in the theory and hypothesis of population regulation in small mammals, focusing on the food hypothesis, predation hypothesis and multi-factorial hypothesis.
应用鱼类主要组织相容性复合体（MHC）基因来探讨鱼类种群间遗传结构，寻找分子遗传标记。
The major histocompatibility complex (MHC) of fish was used to study the genetic structure as a molecular genetic marker of four populations of red common carp.
结果：库蚊属中尖音库蚊复合组4个亚种的实验室种群和伊蚊属中的白纹伊蚊的4个地理株种群均有感染；
Results:The characteristic 600bp products were observed after amplification of extracts from 4 subspecies of Culex pipiens complex and 4 geographical strains of Aedes albopictus.
结果：库蚊属中尖音库蚊复合组4个亚种的实验室种群和伊蚊属中的白纹伊蚊的4个地理株种群均有感染；
Results:The characteristic 600bp products were observed after amplification of extracts from 4 subspecies of Culex pipiens complex and 4 geographical strains of Aedes albopictus.
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