【中国新闻网】研究证实大型古树是城市鸟类重要庇护所

Core Insights - The research led by Chen Sichong from the Wuhan Botanical Garden confirms that large ancient trees play a crucial "refuge" role for urban birds, as published in the journal "Biological Conservation" [1][2] Group 1: Importance of Large Ancient Trees - Urbanization leads to habitat fragmentation, making large ancient trees invaluable as they provide ecological functions that newly constructed green spaces cannot replace [1] - The complex structure of the tree canopy offers essential resting spots for birds, while the abundant fruits serve as a vital food source for frugivorous birds [1] Group 2: Research Findings - The team observed 30 large ancient trees, including camphor, elm, and oak, and recorded behaviors of approximately 5,000 birds, identifying 41 species [1] - As urbanization increases, bird diversity declines, yet the reliance on large trees by birds increases; birds in urban centers are four times more likely to rest on these trees and over 150 times more likely to feed on their fruits compared to those in rural areas [1] Group 3: Behavioral Observations - There is no significant difference in the duration of resting or feeding on large trees between birds in suburban and urban areas, although a slight decrease in urban centers may be attributed to higher disturbances [2] - The study emphasizes that large ancient trees are not only historical artifacts but also essential infrastructure for maintaining urban ecological functions and building resilient urban landscapes [2] Group 4: Conservation Recommendations - Protection of large ancient trees should go beyond mere designation; urban planning must maintain their microhabitats and improve surrounding green space systems to ensure these trees become a cornerstone of sustainable urban development [2]