雅思听力

🎧 Listening Transcript

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. Recent studies show that artificial lights at night confuse young birds, causing them to deviate from their routes. Interestingly, older birds seem less affected, possibly because they rely more on magnetic fields. Another finding is that planting native trees in parks can partially mitigate these disruptions, as they provide natural landmarks. So, while urban growth poses challenges, targeted green spaces offer a practical solution.