Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne examined the impact of community gardens on local biodiversity. The researchers found that these gardens, though small, supported a surprising variety of insect species. However, the key factor wasn't the size of the garden, but the diversity of native plants. Gardens with more than ten native species attracted twice as many pollinators as those with only exotic flowers. Interestingly, the study also noted that gardens near natural reserves had higher bird activity, but this was not linked to plant variety. So, for city planners, the recommendation is clear: prioritize native plant diversity over garden area.
❓ Theo bài giảng, yếu tố quan trọng nhất trong việc hỗ trợ đa dạng sinh học côn trùng tại các khu vườn cộng đồng là gì?
A. A. Kích thước của khu vườn
B. B. Số lượng loài thực vật bản địa
C. C. Khoảng cách gần với các khu bảo tồn thiên nhiên