Collaborative Research: Diapausing Eggs and the Dynamics of Plankton Communities

生态系统的许多特征都受到与之共生的生物体的生活史特征的影响。该研究项目将研究一个关键的生活史阶段，休眠和栖息地的一系列生态特征之间的联系，在这些特征中，休眠可以在控制生物体的发生和影响方面发挥重要作用。休眠是淡水浮游动物生命史中的一个重要因素。这一合作研究项目将研究滞育在关键浮游动物属水蚤存在中的功能作用，以及它的发生对湖泊浮游生物系统其他组成部分的影响。它将允许浮游生物食物网的研究超越他们典型的逐年基础，采取更长远的观点。它将专门测试在特定湖泊和水蚤种群的休眠投资和持续活跃阶段之间是否存在权衡。该项目将发展一个多年的视角，将休眠生活史理论与栖息地持久性自然梯度背景下的营养动力学联系起来。

Caceres & TessierDEB-98164047 & 9816191Many features of ecological systems are influenced by the life-history traits of the organisms that occur with them. This research project will examine links between a key life-history stage, dormancy, and a series of ecological features of habitats where it can play an important role in controlling the occurrence and influence of organisms. Dormancy is a important factor in the life histories of freshwater zooplankton species. This collaborative research project will examine the functional role of diapause in the existence of a key zooplankton genus, Daphnia, and the influence of its occurrence on other components of lake-plankton systems. It will allow plankton food-web studies to go beyond their typical year-by-year basis to take a longer term perspective. It will test specifically whether there is a trade off between investments in dormancy and the persistence of active stages for specific lakes and daphnid populations. This project will develop a multi-year perspective that links life-history theory on dormancy to trophic dynamics with the context of a natural gradient of habitat permanence.