The drawdown zone of the Three Gorges Reservoir: A high risk corridor for species invasion in China?

详细信息    查看全文

• 作者：Chundi Chen^a ; ^c ; ^{chenchundi@cigit.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Colin Douglas Meurk^b ; Shengjun Wu^a ; ^c ; ^{wsj@cigit.ac.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Biodiversity ; Habitat connectivity ; Landscape corridor ; Hydrochory ; Riparian zone
• 刊名：Acta Ecologica Sinica
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：36
• 期：1
• 页码：36-38
• 全文大小：629 K

文摘

The giant Three Gorges Dam and associated reservoir impose an unprecedented threat to regional biodiversity and ecosystem services through reducing and fragmenting habitats. We argue that an emerging ecological challenge goes beyond habitat shrinkage and direct loss of indigenous species. The most complex and vulnerable drawdown zone caused by reservoir operation may function as a conduit facilitating alien species invasion laterally and longitudinally along the Yangtze River Basin. This may further exacerbate China's biodiversity crisis. Better regional ecosystem management requires a landscape connectivity understanding of drawdown zone structure and functions, including its connections with adjacent ecosystems and its effects on biodiversity and biosecurity. Meanwhile, some critical management actions are discussed in this article.