Random walk theory applied to Daphnia motion

被引:44
作者
Komin, N [1 ]
Erdmann, U [1 ]
Schimansky-Geier, L [1 ]
机构
[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
来源
FLUCTUATION AND NOISE LETTERS | 2004年 / 4卷 / 01期
关键词
self-driven particles; enhanced diffusion;
D O I
10.1142/S0219477504001756
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The zooplankton Daphnia or "water flea" - one of the most common crustacean to be found in freshwater - is subject to recent studies. It is known to perform vortex motions under certain light conditions as well as more complex navigational tasks. Experimental data show that Daphnia move with a preferred turning angle, what is of main interest in this paper. The above-mentioned experimental fact is taken in order to derive a diffusion law for these types of motion. Deviations from the free diffusive behavior are investigated, based on random walk theory.
引用
收藏
页码:L151 / L159
页数:9
相关论文
共 17 条