| 来源类型 | Monograph (IIASA Interim Report) |
| 规范类型 | 报告 |
| Periodic Host Absence Can Select for Higher or Lower Parasite Transmission Rates. | |
| van den Berg F; Bacaer N; Metz JAJ; Lannou C; van den Bosch F | |
| 发表日期 | 2011 |
| 出版者 | IIASA, Laxenburg, Austria: IR-11-021 |
| 出版年 | 2011 |
| 语种 | 英语 |
| 摘要 | This paper explores the effect of discontinuous periodic host absence on the evolution of pathogen transmission rates by using Ro maximisation techniques. The physiological consequence of an increased transmission rate can be either an increased virulence, i.e. there is a transmission-virulence trade-off or ii) a reduced between season survival, i.e. there is a transmission-survival trade-off. The results reveal that the type of trade-off determines the direction of selection, with relatively longer periods of host absence selecting for higher transmission rates in the presence of a trade-off between transmission and virulence but lower transmission rates in the presence of a trade-of between transmission and between season survival. The fact that for the transmission-virulence trade-off both trade-off parameters operate during host presence whereas for the transmission-survival trade-off one operates during host presence (transmission) and the other (survival) during the period of host absence is the main cause for this difference in selection direction. Moreover, the period of host absence seems to be the key determinant of the pathogens transmission rate. Comparing plant patho-systems with contrasting biological features suggests that airborne plant pathogen respond differently to longer periods of host absence than soil-borne plant pathogens. |
| 主题 | Evolution and Ecology (EEP) |
| 关键词 | Basic reproduction number Damping-off Potato blight Season trade-off Take-all Virulence trade-off Yellow rust |
| URL | http://pure.iiasa.ac.at/id/eprint/9813/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/125822 |
| 推荐引用方式 GB/T 7714 | van den Berg F,Bacaer N,Metz JAJ,et al. Periodic Host Absence Can Select for Higher or Lower Parasite Transmission Rates.. 2011. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| IR-11-021.pdf（296KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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