Biogeochemical and Ecological Analysis of the Population Dynamics of the Spotted Ladybird Beetle Using Geographic Information Systems and Naturally Occurring Isotopes

利用地理信息系统和天然同位素对斑点瓢虫种群动态进行生物地球化学和生态学分析

• 批准号: 9221320
• 负责人: Peggy Ostrom
• 金额: $ 2.2万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-05-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221320&HistoricalAwards=false
• 关键词: Biogeochemical; Ecological; Analysis; Population; Dynamics

As early as 1962 Rachel Carson recognized the need for biological solutions to environmental problems. She said: "A truly extraordinary variety of alternatives to the chemical control of insects is available. Some are already in use... others are little more than ideas in the minds of imaginative scientists,... . All have this in common: they are biological solutions, based on the living organism they wish to control, and to the whole fabric of life to which these organisms belong. This research project will work within this context to develop natural alternatives to pesticide and herbicides as crop-land management tools. The long-term goal of our research is to understand the behavior of insects that ate natural predators on pests that reduce the productivity of agricultural crops. We will identify attributes of the landscape that are favored by a predator on aphids, the ladybird beetles. This knowledge could allow us to naturally reduce the number of insect pests by designing an agricultural landscape that promotes a large population of predators. The first step in this research is to define the link between various crop types and the predatory insect. This is done by determining if there is a match between the abundance of naturally occurring stable isotopes of carbon and nitrogen in the insect predators and the agricultural crop. A future step will be to link the spatial distribution of the predators with respect to landscape elements. These two steps are a unique approach to studying the behavior of insects because they combine technology from geology and chemistry (analysis of naturally occurring stable isotopes), entomology (insect population dynamics, biological control), and geography (landscape mapping using geographical information systems).

早在1962年，雷切尔卡森就认识到需要 解决环境问题的生物学方法。 她说：“A 有各种各样的替代品 可以控制昆虫。 有些已经在使用… 其他的只不过是想象力丰富的人头脑中的想法 科学家们，. 它们都有一个共同点：它们都是生物学上的 解决方案，基于他们希望控制的生物体，以及 这些生物体所属的整个生命结构。 本研究项目将在此背景下开展工作， 农药和除草剂的天然替代品， 管理工具。 我们研究的长期目标是了解 昆虫捕食天敌的行为 降低农作物的产量。 我们将确定 被捕食者青睐的景观属性 蚜虫瓢虫 这些知识可以让我们 自然减少害虫的数量， 农业景观，促进了大量的人口， 捕食者 本研究的第一步是定义链接 不同作物类型和捕食性昆虫之间的关系。 这是 通过确定是否有一个匹配之间的丰度 天然存在的碳和氮的稳定同位素 昆虫捕食者和农作物。 未来的一步将 将捕食者的空间分布与 景观元素。 这两个步骤是一种独特的方法， 研究昆虫的行为，因为它们将联合收割机技术 从地质学和化学（分析自然发生的 稳定同位素），昆虫学（昆虫种群动力学， 生物控制）和地理学（利用 地理信息系统）。