Dissertation Research: The Effects of Exotic-dominated Forest Communities on Ecosystem Productivity and Carbon Storage in Lowland Hawai'i

论文研究：外来主导森林群落对夏威夷低地生态系统生产力和碳储存的影响

• 批准号: 0808498
• 负责人: Stefan Schnitzer
• 金额: $ 1.2万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-05-15 至 2010-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0808498&HistoricalAwards=false
• 关键词: Dissertation; Research; Effects; Exotic; dominated

In areas where exotic species invasions are pervasive and these invaders become dominant, such as in oceanic islands like Hawaii, the original native ecosystems are being systematically and irrevocably transformed to new states. A key question is whether the ecosystem services will be impaired or otherwise altered by such transformations in the balance of species. The proposed research will measure the production and storage of carbon, services critical to the maintenance of the global carbon cycle, by heavily invaded forest ecosystems on Hawaii. The goal of the research is to determine the extent to which production and carbon storage may be altered and to better understand the mechanisms responsible for any changes in these ecosystem services. Hawaii provides a model system to examine ecosystems with a long history of human influence, including extensive invasion of exotic species. This research will significantly improve our ability to adapt management needs to the rapidly changing environmental conditions imposed by invasive exotic species. This is a situation that will likely be very prevalent in the 21st century. The research will also provide training and research opportunities for undergraduate students at universities in Wisconsin and Hawaii. Furthermore, investigators on this project will work directly with the US Forest Service, informing forest managers of the status of invasive species on Hawaii and implications of changes in these forest ecosystems.

在外来物种入侵普遍存在且这些入侵者占据主导地位的地区，例如夏威夷等海洋岛屿，原始的本土生态系统正在系统地、不可逆转地转变为新的状态。 一个关键问题是生态系统服务是否会因物种平衡的这种转变而受到损害或以其他方式改变。 拟议的研究将测量夏威夷遭受严重入侵的森林生态系统的碳生产和储存，这些碳服务对维持全球碳循环至关重要。 该研究的目标是确定生产和碳储存可能改变的程度，并更好地了解导致这些生态系统服务发生变化的机制。 夏威夷提供了一个模型系统来研究长期受人类影响的生态系统，包括外来物种的广泛入侵。这项研究将显着提高我们适应管理需求以适应外来入侵物种所造成的快速变化的环境条件的能力。 这种情况在 21 世纪可能会非常普遍。 该研究还将为威斯康星州和夏威夷大学的本科生提供培训和研究机会。 此外，该项目的调查人员将直接与美国林务局合作，向森林管理者通报夏威夷入侵物种的状况以及这些森林生态系统变化的影响。