摘要
目的：探讨郑州中华按蚊夏季种群数量激增，出现密度高峰的动力学机制。方法：采用数学生态学的 方法。结果：求出该蚊的内禀增长能力（ｒｍ）为 ０． １９９ ０５，净增殖率（Ｒ０）为 １０１．２１７ ３，世代周期（ Ｔ）为 ２３．１９６ ５ ｄ，有 限增殖速率（λ）为１．２２０２５，瞬时出生率（ｂ）为０．８７４４５，瞬时死亡率（ｄ）为０．６７５５，稳定年龄组配中成虫前期占 ９６．ｌ９９ ２％，成虫期占 ３．７９８ ７％及各项种群动力学参数值。结论：为控制该蚊种群的繁衍趋势和媒介能量的发挥 提供了可靠的科学理论依据。
Aim: To probe the dynamics mechanism of population's number increasing sharply and the emergency of summit of density of Anopheles sinensis in Zhengzhou in summer. Methods: The method of mathematical ecology was used. Results: The values of parameters of population dynamics were as follows: the innate capacity for increase (rm) was 0.199 05, the net repro- ductive rate (RO) was 101.217 3, the peried of generation (T) was 23. l96 5 d, the finite increase rate (λ)was l.220 25, the instaneous birth rate (b) was 0. 874 45, the instantanou modesty (d) was 0. 675 5, the stable op distribution were 96. 199 2% for pre-adult stage and 3.798 7% for adult stage. Conclusion: Reliable scientific basis is provided for controlling the multiply trends and the vectorial capacity of Anopheles sinensis population.
出处
《河南医科大学学报》
2000年第5期375-378,共4页
Journal of Henan Medical University
基金
国家级继续医学教育项目!1999010500
2河南省医药卫生科学研究重点项目!95016
关键词
中华按蚊
动力学
实验种群
内禀增长能力
Anopheles sinensis
dynamics
experimental population
zhang zhou
