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

本研究将建立2种入侵物种、2种常见物种和2种濒危物种的空间积分投影模型（IPMs）。ipm是种群动态的离散时间分析表示。ipm允许个体变化的分析表示，因此代表了对现有方法的重大改进。本研究提出了一种新的ipm扩展到空间领域，使用最先进的方法来模拟入侵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全面分析影响人口下降、增长或扩散的环境变化以及分析不同管理选择之间的复杂相互作用至关重要。该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，并在资源有限的情况下，分别针对提高局部与空间扩展管理优先级的结果的方法。这些物种表现出广泛的生活史，所开发的模型也将为研究其他物种的研究人员提供有用的模板。

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.