The population dynamic of Tsuga tchekiangensis in Wuyishan Nature Reserve was studied and its age structure, the life table, survival curve, mortality rate and killing power curve were analyzed.

对武夷山自然保护区南方铁杉种群动态进行了系统研究，绘制该种群的年龄结构，编制静态生命表，分析存活曲线、死亡率曲线和损失度曲线。

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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.

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。

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The community feature, size-class structure, the regulation of changing density were analyzed and the survival curve, the death curve and the life table were worked out.

分析了白皮松的群落学特征、径级结构及其密度变化规律；绘制了存活曲线和死亡曲线，从多角度研究了白皮松幼林种群的动态变化规律。

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While the race for the title looks likely to be well contested, it is a different case at the other end of the table, where survival would be a huge achievement for promoted Exeter.

BBC: Jeremy Guscott's Premiership preview

City are fifth in the table but Lambert says survival is still the priority.

BBC: Survival is still Norwich City aim, says Paul Lambert

"They're saying 'getting a good deal for us means survival, but you seem to be coming to the table only with what's feasible domestically' - and there is another reality that trumps domestic political realities, " he told BBC News.

BBC: Poor nations vow low-carbon path