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种群及瓜螟种群存亡规律的探讨
史美英1, 刘光祖1, 郑立飞1
西北农林科技大学 生命科学学院
摘要:
采用数学方法分析了自然条件下某生物种群的寿命分布,得到了种群寿命分布函数和种群内禀死亡常数,并由此推导出了种群期望试验资料,拟合了瓜螟第二,三代寿命分布函数,拟合效果较好。
关键词:  种群  寿命分布  分布函数  内禀死亡常数  数学期望
DOI:
分类号:
基金项目:
A discussion on the survival and death regularities of the population and melon borer population
Abstract:
The mathematical methods were used to make research into the living populations lifetime distribution,population lifetime distribution model and the intrinsic death invariant of the population were observed,and population lifetime' mathematical expectation and variance were induced.Experiment data of melon borer's population was used to fit the second and third generation population distribution function,and testing result was quite good.
Key words:  population  lifetime distribution  distribution function  intrinsic death invariant  mathematical expectation

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