大丰国家级自然保护区麋鹿的种群动态

A Study on the David's Deer Population Dynamics in Dafeng Nature Reserve Area

通过编制大丰自然保护区麋鹿种群生命表,绘制其种群增长曲线、死亡率曲线以及存活曲线。得出麋鹿种群的生理期望寿命为6.29岁;种群呈指数增长,其增长模型为Nt=39e0.184t;种群年龄在1～7a时,种群死亡率较小,存活机率较大,到第8年后,种群死亡率急剧上升,存活机率较小。

The authors drew up the life table of the David's Deer population and its growth curve,mortality curve and survival curve in Dafeng nature reserve area.The research results showed that the life expectancy of David's Deer population was 6.29 years and that the exponential curve of the population growth was expressed as Nt=39e0.184t.The population mortality was lower and the survival rate was higher in early growth stage(1 to 7 years).But the mortality became higher and survival rate lower after 8 years old.