【摘要】：為分析棉鈴蟲的繁殖生長(zhǎng)和傳播規(guī)律,考慮棉鈴蟲天敵的影響,建立了一個(gè)3種群捕食與競(jìng)爭(zhēng)模型,改進(jìn)了現(xiàn)有的棉鈴蟲種群競(jìng)爭(zhēng)模型.通過(guò)分析模型平衡點(diǎn)的穩(wěn)定性,了解HaDNV-1病毒對(duì)棉鈴蟲種群動(dòng)態(tài)的影響.結(jié)果表明:在不考慮HaDNV-1對(duì)棉鈴蟲的危害時(shí),感染型棉鈴蟲將會(huì)與天敵共存,而正常棉鈴蟲趨于滅絕;在考慮HaDNV-1對(duì)棉鈴蟲的危害時(shí),得到了使得感染棉鈴蟲與正常棉鈴蟲共存的條件,對(duì)現(xiàn)有文獻(xiàn)中發(fā)現(xiàn)的感染型棉鈴蟲種群變化規(guī)律給出了合理的解釋。
[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.
【作者單位】： 廣州大學(xué)數(shù)學(xué)與信息科學(xué)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(11371107) 高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金資助項(xiàng)目(20124410110001)
【分類號(hào)】：O175
，

本文編號(hào)：2501510