當你在路邊草地或自家庭院里發現一兩只從未見過的甲蟲時，你肯定不會感到驚訝。但在生物學家和生態學家們看來，這或許不是件尋常小事，專家們把這種原本生活在異國他鄉、通過非自然途徑遷移到新的生態環境中的“移民”稱為“生物入侵者”——它們不僅會破壞某個地區原有的生態系統，而且還可能給人類社會造成難以估量的經濟損失。
答案
Surely you will not be surprised to find one or two beetles that you have never seen before on the grass near the roadside or in your yard. However, it may not be a usual thing from the perspective of biologists and ecologists. The expression of “biological invaders” is used by experts to refer to these “immigrants” that used to live abroad and then migrated into a new ecological environment by unnatural means. The invaders will not only destroy the original ecosystem of a certain region, but also probably cause the human society a financial loss that is difficult to measure.
解析
視頻解析
- 支付寶捐助
- 微信捐助
客戶端
