Dissertation Research: Ecological Effects of an Invasive Social Wasp on Endemic Hawaiian Arthropods

论文研究：入侵性群居黄蜂对夏威夷特有节肢动物的生态影响

• 批准号: 0608397
• 负责人: David Holway
• 金额: $ 1.2万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0608397&HistoricalAwards=false
• 关键词: Dissertation; Research; Ecological; Effects; Invasive

The introduction of non-native organisms is a leading cause of species imperilment. Through the study of interactions between native and introduced species, a better understanding of the causes and consequences of invasions may be obtained. This proposed research will examine the underlying mechanisms of a social wasp invasion and identify traits influencing the success of Vespula pensylvanica, the western yellowjacket, through comparative studies in its native range (California) and introduced range (Hawaii). The effect of invasive predators on native species depends upon the history of the recipient community. Because Hawaii lacks native social insects, the introduced western yellowjacket may seriously threaten endemic invertebrates, including herbivores, predators and pollinators. The proposed study uses a combination of classic ecological approaches and modern molecular methods (1) to quantify the effect of an invasive yellowjacket on native prey and competitor taxa, and (2) to assess differences in resource exploitation between V. pensylvanica and native solitary wasps. Preliminary results indicate that prey and competitor abundance decline significantly in the presence of this invasive yellowjacket. In addition, this research investigates the foraging strategies of V. pensylvanica and compares patterns of resource depletion by V. pensylvanica and native solitary wasps. The broader impacts of this study will be (1) to further our understanding of factors contributing to invasion success, and (2) to contribute to the development of effective management strategies that seek to minimize the ecological impacts of invasive social wasps, such as V. pensylvanica.

外来生物的引入是物种濒危的主要原因。通过研究本地物种和引进物种之间的相互作用，可以更好地了解入侵的原因和后果。这项拟议的研究将探讨社会黄蜂入侵的基本机制，并确定影响成功的胡蜂，西部yellowjacket，通过比较研究，在其原生范围（加州）和引进范围（夏威夷）的特征。 入侵掠食者对本地物种的影响取决于接收社区的历史。 由于夏威夷缺乏本地社会昆虫，引进的西部黄夹克可能会严重威胁地方性无脊椎动物，包括食草动物，捕食者和传粉者。该研究采用经典生态学方法和现代分子生物学方法相结合的方法，（1）量化入侵黄夹克对本地猎物和竞争对手类群的影响，（2）评估V. penalicica和本地独居黄蜂之间资源开发的差异。初步结果表明，猎物和竞争对手的丰度显着下降，在这种侵略性的黄夹克的存在。此外，本研究还探讨了小蜂的觅食策略，并比较了小蜂和本地独居蜂的资源消耗模式。这项研究的更广泛的影响将是（1）进一步了解入侵成功的因素，（2）有助于制定有效的管理策略，以尽量减少入侵的社会黄蜂，如V。