学术
Population Growth of Small Harmful Rats in Grassland Subjected to Noise
刘雪梅[1,2] 李志兵[1] 谢汇章[1,2] 艾保全[3] 程晓波[1] 刘良钢[4]
[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
国际标准刊号：ISSN 0256-307X
国内统一刊号：CN 11-1959
文章出处:
《中国物理快报：英文版》-2007年24卷7期 -2135-2137页
Chinese Physics Letters
分 类 号:
Population Growth of Small Harmful Rats in Grassland Subjected to Noise
LIU Xue-Mei LI Zhi-Bing, XIE Hui-Zhang, AI Bao-Quan, CHENG Xiao-Bo, LIU Liang-Gang 1 Department of Physics, Zhongshan University, G uangzhou 510275 2Department of Physics, South China University of Technology, Guangzhou 5106413School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631 4 Faculty of Information Technology, Maeau University of Science and Technology, Maeau
Abstract:
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.[著者文摘]
收稿日期: 2007-03-29
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