| Population Growth of Small Harmful Rats in Grassland Subjected to Noise |
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| 作者姓名： | 刘雪梅 李志兵 谢汇章 艾保全 程晓波 刘良钢 |
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| 作者单位： | [1]Department of Physics, Zhongshan University, G uangzhou 510275 [2]Department of Physics, South China University of Technology, Guangzhou 510641 [3]School of Physics and Telecommunication Engineering, South China Normal University, G uangzhou 510631 [4]Faculty of Information Technology, Macau University of Science and Technology, Macau |
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| 摘 要： | The population growth of small harmful rats in grassland subjected to environment fluctuation has been modelled in a logistic equation. Two correlated random variables responsible to the fluctuation of the genetic factor and the suppression factor are used. A two-peak structure of the steady probability distribution of rate population is observed in the large fluctuation regime of the genetic factor. With the increase of correlation constant A, the steady probability distribution can change from two peaks to a single peak. The suppression factor μ and its fluctuation also affect the steady probability distribution and can push it toward a small population.
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| 关 键 词： | 草地 噪音 群体生长 环境 |
| 收稿时间： | 2007-3-29 |
| 修稿时间： | 2007-03-29 |
Population Growth of Small Harmful Rats in Grassland Subjected to Noise |
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| LIU Xue-Mei,LI Zhi-Bing,XIE Hui-Zhang,AI Bao-Quan,CHENGXiao-Bo,LIU Liang-Gang.Population Growth of Small Harmful Rats in Grassland Subjected to Noise[J].Chinese Physics Letters,2007,24(7):2135-2137. |
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| Authors: | LIU Xue-Mei LI Zhi-Bing XIE Hui-Zhang AI Bao-Quan CHENGXiao-Bo LIU Liang-Gang |
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| Institution: | Department of Physics, Zhongshan University, Guangzhou510275Department of Physics, South China University of Technology, Guangzhou 510641School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631Faculty of Information Technology, Macau University of Science and Technology, Macau |
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| Abstract: | |
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| Keywords: | 87 15 Ya |
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