QEIB: Importance of Individual Variation to the Demography, Dispersal, and Spread of Invasive and Endangered Species: An Integral Projection Model Approach

QEIB：个体变异对入侵和濒危物种的人口统计、扩散和传播的重要性：整体投影模型方法

• 批准号: 0614065
• 负责人: Katriona Shea
• 金额: --
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0614065&HistoricalAwards=false
• 关键词: QEIB; Importance; Individual; Variation; Demography

This study will develop spatial integral projection models (IPMs) for six species: two invasive species, two common species, and two endangered species. IPMs are discrete-time, analytical representations of the dynamics of populations. IPMs allow the analytic representation of individual variation, and so represent a significant improvement over existing methods. This study proposes a novel extension of IPMs into the spatial domain, using state-of-the-art approaches to model spatial spread of invasive and endangered species. Such sophistication will be vital for comprehensive analyses of environmental changes that affect population decline, growth or spread through multiple components of species' life cycles, and for analyses of complex interactions between different management options. The proposed research has important control and conservation implications. The models can be used to address the optimal management strategies for each species, and to separately target approaches that will enhance outcomes for local vs. spatially-extensive management priorities in the face of limited resources. These species exhibit a wide range of life histories, and the models developed will also serve as useful templates for researchers working with a wide range of other species.

这项研究将开发六种物种的空间积分投影模型（IPM）：两个入侵物种，两个常见物种和两个濒危物种。 IPM是人口动态的离散时间分析表示。 IPM允许对个体变异的分析表示，因此代表了对现有方法的重大改进。这项研究建议使用最先进的方法将IPM的新型扩展到空间结构域，以模拟侵入性和濒危物种的空间传播。这种复杂性对于通过物种生命周期的多个组成部分以及不同管理方案之间复杂相互作用的分析，对影响人口下降，增长或扩散的环境变化的全面分析至关重要。 拟议的研究具有重要的控制和保护意义。这些模型可用于解决每个物种的最佳管理策略，并分别针对将在有限资源的情况下为本地与空间扩展的管理优先级增强结果的方法。这些物种表现出广泛的生活史，而开发的模型也将作为与其他种类范围的研究人员一起的有用模板。