However, a professor from the China Agriculture University, who is part of the delegation to Pakistan, questioned whether the ducks would be suited to the mainly arid conditions where the locusts are a problem.
然而,中国农业大学的一位教授(他是中国赴巴基斯坦救灾代表团的一员)提出了质疑:这些鸭子是否适合在严苛的干旱环境下进行灭蝗工作。
"Ducks rely on water, but in Pakistan's desert areas, the temperature is very high," Zhang Long told reporters in Pakistan.
身处巴基斯坦的张龙教授告诉记者:“鸭子依赖水,但在巴基斯坦的沙漠地区,温度非常高。”
生物防治(biological control),指的就是利用一种生物对付另外一种生物(通常是害虫)的防止办法,一般分为三种:猎食者(predator)、病原体(pathogen)、和寄生虫(parasite)。
猎食者Predator
这次资讯中提到的鸭子就是生物防治中猎食者的一种。
Predators kill and feed on several to many individual prey during their lifetimes. Many species of amphibians, birds, mammals, and reptiles prey extensively on insects. Predatory beetles, flies, lacewings, true bugs (Order Hemiptera), and wasps feed on various pest insects or mites.
捕食者在其一生中会捕杀和猎食数个到多个个体猎物。许多两栖动物、鸟类、哺乳动物和爬行动物都广泛捕食昆虫。掠食性甲虫、苍蝇、剑翅、真昆虫(半翅目)和黄蜂也以各种害虫或螨虫为食。
【鸭鸭虽然暂时不能去灭蝗了,但这些生物的确是生物防治的功臣】相关文章:
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