Today, in our environmental science lecture, we'll discuss the impact of urbanization on local wildlife. A recent study in Manchester observed that bird species diversity decreased by 30% in areas with high building density. However, the presence of small gardens and parks significantly mitigated this effect, with a 15% increase in species richness compared to fully paved zones. Interestingly, noise pollution was found to be a stronger deterrent for birds than artificial light at night. The study also noted that ground-nesting birds were the most affected, while tree-nesting species adapted better. This suggests that urban planning should prioritize green corridors and vertical greenery to support biodiversity.
❓ According to the lecture, which factor had a greater negative impact on birds in urban areas?