RPG: Intraguild Predation and Competition Among Congeneric Wolf Spiders

小行星9509151 本研究拟探讨内团捕食（不同物种之间的捕食性相互作用，使用类似的资源）在确定几个同类物种的狼蛛和它们的猎物的种群动态的作用。该项目的目标是描述这些蜘蛛的生活史，并确定它们是否作为竞争对手，捕食者或两者兼而有之。这将通过使用野外围栏来完成，其中不同物种的相对密度将被操纵以测试竞争假设。 %%% 这项研究将有助于我们了解食物网的动态。蜘蛛之间的竞争性和捕食性相互作用的影响的知识具有相关性，在更大的背景下，确定自上而下与自下而上的影响，在构建食物网的相对作用。 ***

9509151 Hodge This research proposes to examine the role of intraguild predation (predatory interactions between different species which use similar resources) in determining the population dynamics of several congeneric species of wolf spiders and their prey. The goals of the project are to characterize the life histories of these spiders, and determine whether they interact as competitots, predators, or both. This will be accomplished using field enclosures in which the relative densities of digfferent species will be manipulated to test competing hypotheses. %%% This research will contribute to our understanding of food-web dynamics. Knowlewdge of the effects of competitive and predatory interactions among spiders has relevance in the larger context of determining the relative roles of top down versus bottom up effects in structuring food webs. ***