感染浓核杆菌HaDNV-1的棉铃虫种群动态分析
发布时间：2019-06-18 12:59
【摘要】：为分析棉铃虫的繁殖生长和传播规律,考虑棉铃虫天敌的影响,建立了一个3种群捕食与竞争模型,改进了现有的棉铃虫种群竞争模型.通过分析模型平衡点的稳定性,了解HaDNV-1病毒对棉铃虫种群动态的影响.结果表明:在不考虑HaDNV-1对棉铃虫的危害时,感染型棉铃虫将会与天敌共存,而正常棉铃虫趋于灭绝;在考虑HaDNV-1对棉铃虫的危害时,得到了使得感染棉铃虫与正常棉铃虫共存的条件,对现有文献中发现的感染型棉铃虫种群变化规律给出了合理的解释。
[Abstract]:In order to analyze the propagation and propagation of the cotton bollworm, a 3-species predation and competition model was established to improve the current competition model of the cotton bollworm. By analyzing the stability of the equilibrium point of the analytical model, the effect of the HaDNV-1 virus on the population dynamics of the cotton bollworm is known. The results show that, when the harm of the HaDNV-1 to the cotton bollworm is not considered, the infected cotton bollworm will coexist with the natural enemy, and the normal cotton bollworm will be extinct; when considering the harm of the HaDNV-1 to the cotton bollworm, the condition that the infected cotton bollworm and the normal cotton bollworm coexist is obtained. A reasonable explanation is given to the change of the population of the infected armigera in the existing literature.
【作者单位】： 广州大学数学与信息科学学院;
【基金】：国家自然科学基金资助项目(11371107) 高等学校博士学科点专项科研基金资助项目(20124410110001)
【分类号】：O175
，
本文编号：2501510
[Abstract]:In order to analyze the propagation and propagation of the cotton bollworm, a 3-species predation and competition model was established to improve the current competition model of the cotton bollworm. By analyzing the stability of the equilibrium point of the analytical model, the effect of the HaDNV-1 virus on the population dynamics of the cotton bollworm is known. The results show that, when the harm of the HaDNV-1 to the cotton bollworm is not considered, the infected cotton bollworm will coexist with the natural enemy, and the normal cotton bollworm will be extinct; when considering the harm of the HaDNV-1 to the cotton bollworm, the condition that the infected cotton bollworm and the normal cotton bollworm coexist is obtained. A reasonable explanation is given to the change of the population of the infected armigera in the existing literature.
【作者单位】： 广州大学数学与信息科学学院;
【基金】：国家自然科学基金资助项目(11371107) 高等学校博士学科点专项科研基金资助项目(20124410110001)
【分类号】：O175
，
本文编号：2501510
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