Study of physical, biological, and chemical aspects of vortex forming animal swarms in theory and experiment, especially in Daphnia

从理论和实验上研究涡流形成动物群的物理、生物和化学方面，特别是水蚤

• 批准号: 5452057
• 负责人: Dr. Anke Ordemann
• 金额: --
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/5452057?language=en
• 关键词: Study; physical; biological; chemical; aspects

The proposed interdisciplinary project deals with the physical, biological, and chemical aspects of vortex forming swarms of self-propelled agents in theory and experiment.The biological agent employed for the experimental part of the study is the common fresh-water zooplankton Daphnia. The project consists of two research directions to be followed in parallel:(1) The investigation of the transition from gathering to collective vortex motion in self-propelled agent swarms and the preconditions necessary for this transition to occur. This is proposed to be studied by means of (a) computer modeling, especially with respect to the analysis of the interactions between the agents and the surrounding medium, as well as inter-agent interactions, and (b) experiments which allow tracking of the path of individual Daphnia and the water movement in high density swarms.(2) The detailed experimental investigation of the behavior of individual animals to changes in their environment, i.e. changes in kairomone (chemical cues from predators) and food concentration, changes in light conditions, or changes in animal density.This is proposed to be analyzed mainly by electrorecording neural responses of Daphnia and characterizing their swimming behavior. Besides its own right, results of this study are important for the development of follow-up experiments dealing with the transition from swarming to collective vortex motion and the optimization of existing computer models, as outlined above in (1).

该跨学科项目的建议涉及的物理，生物和化学方面的涡流形成的自推进剂群的理论和实验。生物剂的实验部分的研究是常见的淡水浮游动物水蚤。该项目由两个平行的研究方向组成：（1）研究自推进剂群中从聚集到集体涡旋运动的转变以及发生这种转变所需的先决条件。这是建议通过（a）计算机建模，特别是相对于代理和周围介质之间的相互作用的分析，以及代理间的相互作用，和（B）实验，允许跟踪的路径个别水蚤和水的运动在高密度的群体进行研究。(2)对个体动物在环境变化中的行为进行详细的实验研究，如利它素（来自捕食者的化学信号）和食物浓度的变化、光照条件的变化或动物密度的变化。这主要通过电记录水蚤的神经反应和描述它们的游泳行为来分析。除了其本身的权利，这项研究的结果是重要的后续实验的发展处理从群集到集体涡运动和现有的计算机模型的优化，如上文（1）中所概述的。