RUI: Intraguild Predation and Cannibalism Between Caddisflies in Subalpine Ponds

9407856威辛格有越来越多的证据表明，生态学家对水生食物网结构的看法过于简单化。最近，人们对行会内捕食(IGP；即具有相似食性的物种对彼此的捕食)的研究很感兴趣，但数据相对较少。这项研究的目的是确定幼虫在公会内捕食和吸食大麻对成虫健康的影响，研究在幼虫之间调节IGP的最近的机制，并量化其他无脊椎动物捕食者和火蜥蜴对这些相互作用的结果的直接和间接影响。这项研究将首次提供摄食水生有害生物的公会内捕食的数据。研究结果将加深我们对水生生态系统功能的理解，并在水生污染防治和水生生态系统管理中得到应用。

9407856 Wissinger There is accumulating evidence that ecologists' perceptions of the structure of aquatic food webs has been overly simplistic. Recently there has been much interest, but relatively little data on intraguild predation (IGP; i.e., predation of species with similar feeding habits on one another). The objectives of this research project are to determine the effects of intraguild predation and cannabalism among caddisfly larvae on adult fitness, study the proximate mechanisms that mediate IGP among caddisflies, and quantify the direct and indirect effects of other invertebrate predators and salamander on the outcome of these caddisfly interactions. This research will provide the first data on intraguild predation in aquatic detritis-feeding organisms. The results will improve our understanding of the functioning of aquatic ecosystems and have application in aquatic pollution abatement and management of aquatic ecosystems.