Good morning, everyone. Today we're going to discuss the impact of urbanization on local wildlife. One key study from the University of Melbourne found that while some species struggle, others adapt surprisingly well. For example, the common brushtail possum has thrived in Australian cities by shifting its diet to include garden plants and even human food scraps. However, the study also noted a concerning trend: the number of native bird species in urban areas has declined by nearly 30% over the past two decades, mainly due to predation by domestic cats and loss of nesting sites. The researchers suggest that creating green corridors could help mitigate this decline.
❓ 講義によると、オーストラリアの都市部で在来の鳥類の個体数に何が起こったのでしょうか?
A. A) 彼らは豊富な食料のために増加した。
B. B) 彼らは20年間で約30%減少しています。
C. C) 彼らは安定を保っているが、生息地を変えた。
D. D) 彼らはポッサムよりも上手く適応している。
✅ 正确答案
B) They have decreased by about 30% over 20 years.