Today in our environmental science lecture, we're discussing the impact of urban development on local ecosystems. One key example is the construction of a new highway near the town of Greenfield. Before the highway was built in 2018, the area was home to over 200 species of birds. However, a recent survey conducted last year found that this number has dropped to just 150. Additionally, noise pollution has increased significantly, affecting the breeding patterns of native frogs. Interestingly, the local council has now proposed a wildlife corridor to connect fragmented habitats, which could help restore some of the lost biodiversity.
❓ 根据讲座内容，高速公路建设对当地鸟类种群的主要影响是什么？
A. A) 鸟类物种的数量从200种减少到了150种。
B. B) 这些鸟类永久迁移到了另一个地区。
C. C) 高速公路导致了本地鸟类的完全灭绝。
D. D) 鸟类数量保持稳定，但改变了饮食习性。
✅ 正确答案
A) The number of bird species decreased from 200 to 150.