Symonides E, Silvertown J, Andreasen V
Institute of Botany, Warsaw University, Al. Ujazdowskie 4, 00-478, Warsaw, Poland.
Section of Ecology & Systematics, Cornell University, 14853, Ithaca, NY, USA.
Oecologia. 1986 Dec;71(1):156-158. doi: 10.1007/BF00377336.
We analyse demographic data from a seven-year study of the annual crucifer Erophila verna which showed two-year cycles of abundance in the field. The unusual behaviour of this population is shown to be the consequence of overcompensating density-dependence. Very local differences in germination succes between plots can account for observed differences in their population dynamics over the long term.
我们分析了一项为期七年的关于一年生十字花科植物早开堇菜（Erophila verna）的研究中的人口统计学数据，该研究表明该植物在田间的丰度呈现两年周期。该种群的异常行为被证明是过度补偿密度依赖性的结果。不同地块间发芽成功率的微小局部差异可以解释长期观察到的其种群动态差异。
