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首页> 外文期刊>Belgian Journal of Zoology >Relative efficiency of three types of small mammal traps in an African rainforest
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Relative efficiency of three types of small mammal traps in an African rainforest

机译：非洲雨林中三种类型的小型哺乳动物陷阱的相对效率

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Numerous studies have compared the efficiency of different types of traps for the survey of small mammals in temperate Countries, but such comparative studies are strikingly fewer in tropical habitats. We compared the efficiency of three types of traps for sampling small mammals in an African rainforest : one type of interception trap (pitfall traps with drift fences) and two types of baited traps (Sherman live trap and metal snap trap). We captured 1884 individuals belonging to 9 shrew and 11 murid rodent species. Pitfall traps were more efficient (higher number of species trapped and higher trap success) than baited traps for capturing shrews. In contrast, they were less efficient for capturing rodents, even if some rare species were captured in pitfall traps only. Sherman and snap traps have complementary qualities for the capture of rodents. Sherman traps are more effective for trapping smaller rodent species, while snap traps tend to be more effective for trapping larger ones. Moreover, light individuals of the largest species are better captured than heavy ones in Sherman, while no significant difference was observed for small species. No sex ratio difference was detected between populations sampled by each of the three types of traps. The three types of traps used in this study have complementary effects onto the capture of small mammals in African rainforest. An assortment of traps should always be employed in studies of small mammal communities in African rainforest in order to obtain a wider range of taxa, and thus a better representation of the community.
机译：许多研究已经比较了不同类型的诱捕器在温带国家中对小型哺乳动物进行调查的效率，但是这种比较研究在热带栖息地中却很少。我们比较了三种类型的陷阱在非洲雨林中对小型哺乳动物进行采样的效率：一种类型的拦截陷阱（带有漂移栅栏的陷阱陷阱）和两种诱饵陷阱（Sherman活陷阱和金属捕捉陷阱）。我们捕获了1884个个体，这些个体属于9种rew和11种鼠类。陷阱诱捕器比诱饵诱捕器更有效（捕获的物种数量更多，捕获成功率更高）。相反，即使仅在陷阱陷阱中捕获某些稀有物种，它们对啮齿动物的捕获效率也较低。谢尔曼和捕捉器具有捕获啮齿类动物的互补特性。谢尔曼捕集阱对于捕集较小的啮齿类动物更有效，而捕捉捕集阱则对捕获较大的啮齿动物更有效。此外，在谢尔曼，最大物种的轻个体比重物种的个体更容易被捕获，而小物种则没有明显差异。在这三种陷阱的每一个样本中，没有发现性别比差异。本研究中使用的三种类型的陷阱对非洲雨林中小型哺乳动物的捕获具有互补作用。在研究非洲雨林中的小型哺乳动物群落时，应始终使用各种诱捕器，以获取更广泛的分类单元，从而更好地代表该群落。

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