Dissertation Research: Host-Parasitoid Interactions and Habitat Subdivision: The Distribution and Population Dynamics of a Geometric Moth on Dryas

小行星9311208 本研究探讨了栖息地破碎化和寄主-寄生虫相互作用在影响尺蠖蛾在自然斑块生境中的分布和种群动态中的作用。 它研究了栖息地结构，当地人口的同步性，人口之间的扩散，以及主机寄生虫相互作用的影响。 这项工作结合了实地实验和观察的离散时间模拟模型的发展，在空间上明确的景观，检查和整合的影响栖息地细分和主机寄生虫的相互作用。 了解种群动态和物种的分布占据细分栖息地是至关重要的两个领域的种群生物学和保护生物学。 定殖，灭绝和扩散的动态相互作用与捕食者-被捕食者动态，以确定生活在斑块分布的栖息地物种的人口过程。 理论工作存在于生境破碎化和捕食者-猎物相互作用两个领域。 然而，很少有实证工作站在这些机构的理论，很少有理论和几乎没有实证工作试图整合这两个领域。 集合种群动态正越来越多地用于模型，如果人口结构在两个理论保护背景下，但很少有例子显示时间集合种群结构。 这项研究提供了建立一个集合种群的例子的潜力。 ***

9311208 Geber This study examines the roles of habitat fragmentation and host-parasitiod interactions in influencing the distribution and population dynamics of a geometrid moth living in a naturally patchy habitat. It examine the habitat structure, synchrony of local populations, dispersal between populations, and impact of host-parastoid interactions. The work combines field experiments and observations with the development of a discrete time simulation model on a spatially explicit landscape to examine and intergrate the influences of habitat subdivision and host-parasitoid interactions. Understanding the population dynamics and distribution of species occupying subdivided habitats is critical to both the fields of population biology and conservation biology. The dynamics of colonization, extinction and dispersal interacts with predator-prey dynamics to determine population processes for species living in patchily distributed habitats. Theoretical work exists in both the areas of habitat fragmentation and predator-prey interactions. yet, little empirical work stands behind these bodies of theory, and very little theoretical and almost no empirical work has attempted to intergrate the two fields. %%% Metapopulation dynamic's are being increasingly used for models if population structure in both theoretical & conservation contexts, yet there are few examples showing time metapopulation structure. This study offers the potential of establishing an example of a metapopulation. ***