In today's lecture, we'll discuss the impact of urbanization on local ecosystems. One key point is that cities often create 'heat islands' due to concrete and asphalt absorbing sunlight. However, a lesser-known effect is on bird migration patterns. A study in Chicago found that artificial lights at night disorient migratory birds, causing them to circle buildings for hours. This delays their journey and increases energy expenditure. Interestingly, the study also noted that birds are more attracted to red lights than blue ones, which suggests that changing street lighting could reduce these disruptions. So, while we often focus on temperature changes, light pollution is equally significant.
❓ 강의에 따르면, 시카고에서의 연구는 인공 조명과 철새에 대해 무엇을 밝혀냈습니까?
A. A. 새들은 인공 조명의 모든 색상에 동등하게 끌린다.
B. B. 빨간 불빛은 파란 불빛보다 새들에게 더 큰 방향 감각 상실을 유발한다.
C. C. 파란 불빛은 빨간 불빛보다 철새의 이동을 더 지연시킨다.
D. D. 인공 조명은 철새들이 이동하는 동안 방향을 찾는 데 도움을 줍니다.
✅ 正确答案
B. Red lights cause more disorientation in birds than blue lights.