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.
❓ 강의에 따르면, 호주 도시의 토착 조류 개체군에는 어떤 변화가 일어났습니까?
A. A) 그들은 풍부한 음식 때문에 증가했습니다.
B. B) 그들은 20년 동안 약 30% 감소했습니다.
C. C) 그들은 안정적으로 유지되었지만 서식지를 변경했습니다.
D. D) 그들은 주머니쥐보다 더 잘 적응해 왔다.
✅ 正确答案
B) They have decreased by about 30% over 20 years.