Interacting Mechanisms in the Competitive Displacement of a Parthenogenitic Gecko by a Sexual Species of Gecko

这项研究关注的是侵略性，生殖性， 模式和克隆多样性在观察到的竞争位移 在热带太平洋的壁虎中。 PI记录了 一个大尺度的地理图案，一只壁虎， 半趾加frenatus，在引进岛屿， 太平洋，取代其他物种作为常见的城市壁虎。 两 物种（H.garnotti和Lepidodactylus lugubris）被替换 单性生殖。 有一个强烈的负面 带纹刺蛾对L. lugubris在当地和 一个广泛的地理范围在整个太平洋，也是一个强大的 frenatus和L.悲伤 这项研究将评估使入侵物种 导致本地物种的减少 实验设计将 检验H.系带 对L.lugubris的竞争是主要的竞争机制， 还可以量化剥削机制。 与 使用世界卫生组织期间建造的20个废弃飞机护岸 第二次世界大战（位于N.A.S. Barbers Point on Occupy）， PI可以操纵激动性相互作用的成分， 大规模分布，具有许多重复处理。 %%% 研究结果将应用于保护和管理 土著社区，目的是保护这些社区 外来物种的入侵

This research concerns the role of aggression, reproductive mode and clonal diversity in the observed competitive displacements among geckos in the tropical Pacific. The PI has documented a wide-scale biogeographic pattern in which a house gecko, Hemidactyplus frenatus, upon introduction to islands in the Pacific, replaces other species as the common urban gecko. Two of the species (H.garnotti and Lepidodactylus lugubris) being replaced reproduce parthenogenetically. There is a strong negative numerical effect of H.frenatus on L. lugubris both locally and on a broad geographic scale throughout the Pacific, and also a strong agonistic asymmetry between H.frenatus and L. lugubris. This research will assess factors that enable an invading species to cause a decline in native species. The experimental design will test the hypothesis that the agonistic dominance of H. frenatus over L.lugubris is the primary mechanism of competition, but will also enable quantification of exploitative mechanisms. With the use of 20 abandoned aircraft revetments constructed during World War II (located on the grounds of N.A.S. Barbers Point on Oahu), the PI can manipulate components of agonistic interaction and prey distribution on a large scale with many replicate treatments. %%% The results will be applied to the preservation and management of native communities, with the goal of protecting these communities from invading exotic species.