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：Thomas Weeks：NE/S007415/1土地利用变化和生物入侵是全球生物多样性下降的三个主要驱动因素中的两个，然而，这些驱动因素之间的相互作用往往会对本地生态系统产生协同效应。这是一种众所周知但研究相对较少的现象。特别是，人们对这些驱动因素如何相互作用以影响整个社区的多样性和功能知之甚少。该提案通过与多伦多地区和保护机构的长期生态监测计划合作，扩大了这一知识差距，该计划整合了高分辨率安大略省南部土地利用的时间序列数据以及包括本地和入侵物种在内的综合生态调查。我们建议利用这些数据来模拟城市化和入侵物种对多伦多及周边地区当地生物多样性的影响。我们特别关注自然栖息地的日益退化如何与入侵物种丰富度相互作用，及其对本地功能特征和系统发育生物多样性的影响。通过对 21 世纪剩余时间的土地利用变化进行高分辨率预测，我们将突出显示生物多样性面临最大风险的地区以及对入侵物种进一步扩散抵抗力最差的地区。