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Bushmeat hunting changes regeneration of African rainforests

机译:丛林肉狩猎改变了非洲雨林的再生

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摘要

To assess ecological consequences of bushmeat hunting in African lowland rainforests, we compared paired sites, with high and low hunting pressure, in three areas of southeastern Nigeria. In hunted sites, populations of important seed dispersers—both small and large primates (including the Cross River gorilla, Gorilla gorilla diehli)—were drastically reduced. Large rodents were more abundant in hunted sites, even though they are hunted. Hunted and protected sites had similar mature tree communities dominated by primate-dispersed species. In protected sites, seedling communities were similar in composition to the mature trees, but in hunted sites species with other dispersal modes dominated among seedlings. Seedlings emerging 1 year after clearing of all vegetation in experimental plots showed a similar pattern to the standing seedlings. This study thus verifies the transforming effects of bushmeat hunting on plant communities of tropical forests and is one of the first studies to do so for the African continent.
机译:为了评估在非洲低地雨林中猎食森林猎物的生态后果,我们比较了尼日利亚东南部三个地区成对的地点和高低的狩猎压力。在被狩猎的地点,重要的种子传播者(无论大小灵长类动物(包括克罗斯河大猩猩,大猩猩大猩猩二头目))的种群数量都大大减少了。即使被猎杀,大型啮齿动物在被猎杀的地点也更为丰富。狩猎和受保护的地点有类似的成熟树木群落,主要分布有灵长类动物。在受保护的地点,幼苗群落的组成与成熟树木相似,但在被狩猎的地点,具有其他传播方式的物种在幼苗中占主导地位。实验区所有植被清除后1年出苗的苗种与立苗相似。因此,这项研究验证了食用森林猎物对热带森林植物群落的转化作用,并且是针对非洲大陆进行的首批研究之一。

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