In today's lecture, we'll discuss the impact of urbanization on local ecosystems. One key point is that while cities often reduce biodiversity, they can also create new habitats. For example, green roofs and vertical gardens support insects and birds that struggle in rural areas due to intensive farming. However, the success of these habitats depends on the choice of native plants. A recent study in Melbourne found that roofs with native grasses attracted three times more native bee species than those with exotic flowers. Surprisingly, the size of the roof mattered less than the plant diversity. Therefore, urban planners should prioritize plant variety over sheer green space.
❓ 강의에 따르면, 멜버른에서 진행된 연구의 핵심 발견은 무엇이었나요?
A. A. 더 큰 녹색 지붕은 항상 더 많은 벌 종을 지원한다.
B. B. 토착 식물은 외래 식물보다 토착 벌을 유인하는 데 더 효과적이었다.
C. C. 외래 꽃은 토착 풀보다 더 많은 토착 벌을 유인했다.
D. D. 지붕의 크기가 벌의 다양성에 가장 중요한 요인이었다.
✅ 正确答案
B. Native plants were more effective than exotic ones in attracting native bees.