A trait-based theory of island biogeography

这个项目将发展一个基于财产的岛屿地理学和元食物网理论。它将把物种特性和温度对扩散运动的约束整合到元食物网模型中。此外，随机扰动的后果将进行调查。在第一个子项目中，一种新的食物网组装模型将被用来预测空间食物网拓扑结构的变化，作为空间过程，当地生物过滤和环境条件的函数。这将揭示三个方面的重要性的物种性状有关的运动，相互作用和容忍的社区集会。结果将在应力梯度和扰动（如热浪）中推广。随后的一个子项目将把依赖特征的扩散模型应用于岛屿群岛的空间尺度，以预测鸟类和由它们扩散的植物等积极扩散的物种群体的生物多样性和特征分布的模式。研究结果将为物种特征和环境条件如何影响群岛的生物多样性和特征模式提供预测性理解。结果将被用来开发一个宏观食物网模型，预测方差的食物网拓扑结构从本地到地理尺度的功能，当地的营养和空间过程，气候条件，物种库的进化限制，和随机扰动。总的来说，该项目将有助于DynaCom研究单位揭示物种特征和动态的环境条件的重要性，在整个群岛岛屿或metacompatibility栖息地补丁的生物多样性模式。

This project will develop a property-based theory of island biogeography and meta-food webs. It will integrate the constraints of species traits and temperature on dispersal movement into meta-food web models. In addition, the consequences of stochastic perturbations will be investigated. In a first subproject, a novel food web assembly model will be used to predict the variability of food web topology in space as a function of spatial processes, local biotic filtering, and environmental conditions. This will reveal the importance of three dimensions of species traits related to movement, interaction, and tolerance for community assembly. Results will be generalized across gradients of stress and disturbance such as heat waves. A subsequent subproject will apply the trait-dependent dispersal model to the spatial scale of island archipelagos to predict patterns in biodiversity and trait distributions of actively dispersing species groups such as birds and the plants that are dispersed by them. The results will provide a predictive understanding of how species traits and environmental conditions influence biodiversity and trait patterns across archipelagos. Results will be used to develop a macro-food web model that predicts variance in food web topology from local to biogeographic scales as a function of local trophic and spatial processes, climatic conditions, evolutionary constraints on the species pool, and stochastic perturbations. Overall, this project will thus contribute to the DynaCom research unit by revealing the importance of species traits and dynamics in environmental conditions for patterns in biodiversity across archipelagic islands or metacommunity habitat patches.