据初步统计,目前我国有488种外来入侵物种,其中植物265种,动物171种,菌类微生物和病毒等若干种。还有大量外来物种处在潜伏期,尚未大面积爆发,我们还不知道它们会不会是有害生物。外来物种的入侵危及本地物种生存,破坏生态系统,每年在全球造成的经济损失高达1200多亿元。在国际自然保护联盟公布的最具危害性的100种外来有害生物物种中,我国有 According to preliminary statistics, there are currently 488 invasive alien species in our country, including 265 species of plants, 171 species of animals, and several species of microorganisms and viruses. There are a large number of alien species in the incubation period, yet large-scale outbreaks, we do not know whether they will be pests. Invasion of alien species endangers the survival of native species and damages ecosystems, causing an annual global economic loss of more than 120 billion yuan. Among the 100 most harmful pest species released by the International Union for Conservation of Nature, China has