A global synthesis of plant extinction rates in urban areas
A global synthesis of plant extinction rates in urban areas
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DOI：
10.1111/j.1461-0248.2009.01372.x
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发表时间：
2009-11-01
期刊：
影响因子：
8.8
通讯作者：
Williams, Nicholas S. G.
中科院分区：
文献类型：
--
作者：
Hahs, Amy K.;McDonnell, Mark J.;Williams, Nicholas S. G.
城市地区的植物灭绝对全世界的生物多样性构成了越来越大的威胁。为了最大限度地减少这种威胁，了解哪些因素影响植物灭绝率至关重要。我们收集了全球22个城市的植物灭绝率数据。三分之二的植物灭绝率的变化是由城市的历史发展和当前的原生植被比例相结合的解释，前者解释了最大的变化。作为一个单一的变量，原生植被的数量也影响灭绝率，特别是在城市> 200岁。我们的研究表明，农业和城市发展带来的景观变化的遗产可以持续数百年，现代城市可能背负着巨大的灭绝债务。这一发现强调了保护城市地区原生植被的重要性，以及减少未来潜在植物保护的必要性。
Plant extinctions from urban areas are a growing threat to biodiversity worldwide. To minimize this threat, it is critical to understand what factors are influencing plant extinction rates. We compiled plant extinction rate data for 22 cities around the world. Two-thirds of the variation in plant extinction rates was explained by a combination of the city's historical development and the current proportion of native vegetation, with the former explaining the greatest variability. As a single variable, the amount of native vegetation remaining also influenced extinction rates, particularly in cities > 200 years old. Our study demonstrates that the legacies of landscape transformations by agrarian and urban development last for hundreds of years, and modern cities potentially carry a large extinction debt. This finding highlights the importance of preserving native vegetation in urban areas and the need for mitigation to minimize potential plant extinctions in the future.