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Is There a Relationship between the Chitty Effect and the Types of Population Dynamics?
Doklady Biological Sciences Pub Date : 2020-07-06 , DOI: 10.1134/s0012496620030084
V D Yakushov 1 , B I Sheftel 2
Affiliation  

Abstract

Thirty-year studies of populations of eight shrew species in the Middle Yenisei taiga have shown that at the late 20th century the population dynamics had a pronounced cyclic character, but in the 21st century cyclic dynamics changed with fluctuating one. The analysis of the dependence of the animal body weight on the population density have revealed that under cyclic dynamics at the peaks of the population, the animal’s body weight is significantly higher than that at population decline, i.e., the corollary from the Chitty hypothesis (the Chitty effect) is observed. In populations with fluctuating dynamics such regularity has not been observed.



中文翻译:

Chitty效应与人口动态类型之间是否有关系?

摘要

对叶尼塞中部针叶林中八种sh物种的种群进行的三十年研究表明,在20世纪后期,种群动态具有明显的周期性,但在21世纪,周期性动态随着波动而变化。对动物体重对种群密度的依赖性的分析表明,在种群高峰时的循环动力学下,动物的体重显着高于种群减少时的体重,即,来自Chitty假设的推论(观察到Chitty效果。在动态变化的人群中,这种规律性尚未观察到。

更新日期:2020-07-06
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