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

本研究将建立六个物种的空间积分投影模型(IPMS)：两个入侵物种、两个普通物种和两个濒危物种。IPMS是种群动态的离散时间的解析表示。IPMS允许对个体差异进行解析表示，因此与现有方法相比有了显著的改进。这项研究提出了一种新的IPMS向空间领域的扩展，使用最先进的方法来模拟入侵和濒危物种的空间传播。这种复杂性对于全面分析影响种群减少、增长或通过物种生命周期的多个组成部分传播的环境变化至关重要，对于分析不同管理选择之间的复杂相互作用至关重要。这项拟议的研究具有重要的控制和保护意义。这些模型可以用来解决每个物种的最优管理战略，并单独针对在资源有限的情况下提高当地与空间广泛管理优先事项的结果的方法。这些物种展示了广泛的生活史，所开发的模型也将作为研究人员与广泛的其他物种合作的有用模板。

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.