| Dynamics of a host-parasitoid model with Allee effect for the host and parasitoid aggregation | |
| Hua Liu ; Zizhen Li ; Meng Gao ; Huawei Dai ; Zhiguang Liu | |
| 发表期刊 | Ecological Complexity
 |
| 2009 | |
| 卷号 | 6期号:3页码:337-345 |
| 关键词 | Host–parasitoid Allee Effect Aggregation Bifurcation Diagram Chaos Dynamic Complexity |
| 产权排序 | [Liu, Hua; Li, Zizhen; Dai, Huawei; Liu, Zhiguang] Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Peoples R China; [Liu, Hua] NW Univ Nationalities, Sch Comp Sci & Informat Engn, Lanzhou 730124, Peoples R China; [Li, Zizhen] Lanzhou Univ, Minist Educ, Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China; [Gao, Meng] Yantai Inst Coastal Zone Res Sustainable Dev, Yantai, Peoples R China |
| 通讯作者 | Li, ZZ, Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Peoples R China |
| 作者部门 | 信息集成与应用实验室 |
| 英文摘要 | In this paper, a discrete-time host–parasitoid model is investigated. Two biological phenomena, the Allee effect of the host population and the aggregation of the parasitism, are considered in our mathematical model. Through extensive numerical simulations, we gain some interesting findings related to Allee effect from this research. Firstly, the ranges of parameter, in which the population dynamics is chaos, are compressed when Allee effect is added. Secondly, the sensitivity to initial conditions of the host–parasitoid system decreased after adding Allee effect. Thirdly, without Allee effect, we observed two complicated dynamics, intermittent chaos and supertransients. However, when Allee effect is included, these two phenomena are replaced by another kind of phenomenon-period alternation, where chaos is eliminated. From above three novel findings, it can be concluded that dynamic complexities are alleviated by Allee effect. This conclusion is crucial in resolving the discrepancy between real population dynamics and theoretical predictions. Furthermore, the importance of this research is to help us understand the mechanisms inducing the irregular fluctuations of the natural populations. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/4417 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| 推荐引用方式 GB/T 7714 | Hua Liu,Zizhen Li,Meng Gao,et al. Dynamics of a host-parasitoid model with Allee effect for the host and parasitoid aggregation[J]. Ecological Complexity,2009,6(3):337-345. |
| APA | Hua Liu,Zizhen Li,Meng Gao,Huawei Dai,&Zhiguang Liu.(2009).Dynamics of a host-parasitoid model with Allee effect for the host and parasitoid aggregation.Ecological Complexity,6(3),337-345. |
| MLA | Hua Liu,et al."Dynamics of a host-parasitoid model with Allee effect for the host and parasitoid aggregation".Ecological Complexity 6.3(2009):337-345. |
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