How do urbanization and invasive alien species interact in their impacts to native biodiversity?

城市化和外来入侵物种如何相互作用对本地生物多样性产生影响？

• 批准号: NE/V020757/1
• 负责人: Joseph Tobias
• 金额: $ 0.85万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FV020757%2F1
• 关键词: How; do; urbanization; invasive; alien

NERC : Thomas Weeks : NE/S007415/1Land-use change and biological invasions are two of the three major drivers of biodiversity decline globally, however, interactions between these drivers can often have synergistic effects on native ecosystems. This is a phenomenon which is well known but relatively understudied. In particular, little is known about how these drivers interact to affect whole community diversity and function This proposal serves to add to this knowledge gap by collaboration with the long-term ecological monitoring programme from Toronto Region and Conservation Agency, which has consolidated high-resolution time-series data of land-usage in southern Ontario as well as comprehensive ecological surveys including both native and invasive species. Using this data we propose to model the effects of both urbanization and invasive species on native biodiversity in local assemblages in Toronto and the surrounding region. We pay specific attention to how increasing degradation of natural habitats interacts with invasive species abundance its effects to native functional-trait and phylogenetic biodiversity. By using high-resolution projection of land-use change into the remainder of the 21st century we will highlight areas where biodiversity is most at risk as well as areas which would be least resilient to further spread of invasive species.

NERC：托马斯·威克斯：NE/S 007415/1土地利用变化和生物入侵是全球生物多样性下降的三大驱动因素之二，然而，这些驱动因素之间的相互作用往往会对原生生态系统产生协同效应。这是一个众所周知的现象，但研究相对不足。特别是，鲜为人知的是，这些驱动程序如何相互作用，影响整个社区的多样性和功能。该提案有助于增加这一知识差距的长期生态监测计划，从多伦多地区和保护局，巩固了高分辨率的时间序列数据的土地使用在南部安大略以及全面的生态调查，包括本地和入侵物种的合作。利用这些数据，我们建议模拟本地生物多样性的本地组合在多伦多和周边地区的城市化和入侵物种的影响。我们特别关注自然栖息地的日益退化如何与入侵物种的丰度相互作用，以及对本地功能特征和系统发育生物多样性的影响。通过使用高分辨率的土地利用变化预测到21世纪世纪的剩余时间，我们将突出生物多样性最危险的地区，以及最不适应入侵物种进一步扩散的地区。