另一个指标，地球生命指数，是1 686种脊椎动物的种群数量变化的平均数。
Another indicator, the Living Planet Index, averages changes in the sizes of populations of 1, 686 vertebrate species.
这对人类来说并非真实，人类种群一直以指数增长，起码有几千代如此。
That is not true for humans, whose population has grown exponentially for at least several thousand generations.
以底栖动物作为底层水环境和底泥环境长期影响的指标，利用生物指数和种群结构的变化对底质进行评价和分析。
The ground base was evaluated and analysed by using biological index and variation of population of benthon which are effected by bottom water and mud environment.
表明根据研究对象和研究目的选择合理的分布型指数，能够提供种群空间分布格局的多侧面信息。
Thus, according to research object and goal, choosing a reasonable distribution index can provide multi-factor information about the spatial pattern of the population.
从而说明本研究以叶面积指数和植物冠层盖度为基础进行叶片与种群间的尺度转换是可行的。
It indicates that the scale conversion between leaves level and population level based on canopy and leaves area index is feasible.
随着二倍体致死当量的增加，灵敏度指数也升高，种群的衰退速度加快。
The sensitive index would increase and population decline would be speeded up as the increase of lethal equivalents per diploid.
应用干扰作用控制指数法评价了阿维菌素、蚜虱灭、蚜虱蓟净等杀虫剂对桃蚜种群控制的作用。
The interference index of population control, IIPC was used to evaluate the control effect of Avermectins, Yasimie and Yasimiejin on peach-aphid.
通过对乌鲁木齐河底栖动物种群结构的分析，利用生物指数评价乌鲁木齐河水质状况。
The water quality of Urumqi river was evaluated using biological index. Which is on the basis of analysis of the population structure of benthic animal in Urumqi river.
施用化学杀虫剂的种群趋势指数（）为7.20，干扰作用控制指数为1.43，即种群趋势指数将增长为对照的1.43倍。
The index of population trend in treatment of spraying chemical insecticides was 7.20, The index of population trend would increase in 1.43 times against that in control.
另外，固定指数分析显示在一些种群和位点有轻微的杂合子缺乏。
In addition, analysis of fixation indices revealed a slight heterozygote deficiency in some populations and at some loci.
研究了温度对斜纹夜蛾的发育、存活、生殖、种群参数和种群趋势指数的影响。
Effect of temperature on development, survival, reproduction, population parameter and population trend index of Spodoptera litura (Fabricius) were studied.
组建了以作用因子为组分的夏季自然种群生命表，并运用排除作用控制指数法分析了各种因子对假茎象甲自然种群的作用。
The active factor life tables of BPW natural population were constructed. The controlling effect of active factors was evaluated by using exclusion index of population control (EIPC).
应用干扰作用控制指数法评价了阿维菌素、蚜虱灭、蚜虱蓟净等杀虫剂对桃蚜种群控制的作用。
An approximate variance estimator for index of population trend developed with delta-method and its application;
结果表明：前齿肖蛸第二代的种群增长指数最大，达66.52；第四代种群增长指数最小，为14.60。
The experimental result shows that the maximum population increase index for the second generation is 66. 52, and the minimum population increase index for the fourth generation is 14.60.
测定了不同温度下莲雾毒蛾各虫态的存活状况，并就卵孵化率、幼虫存活率、蛹羽化率、产卵量和种群趋势指数等指标与温度的关系进行相关性分析。
The regression equations of the rates of hatching, larvae survival, emergence, the egg number laid by a female and population trend indices against temperatures were analyzed.
结果表明，中国梨木虱第一、第二世代种群的趋势指数分别为4．189和3．974； 世代的存活率分别为5．818％和5．52％。
The trend indices of population of 1st and 2nd generations were 4.189 and 3.974, the survival were 5.818% and 5.52%.
结果显示，柑桔粉虱第一、二、三世代的种群趋势指数分别为8。
The population trend indexes for its lst, 2nd and 3rd generation were 8.
结果显示，柑桔粉虱第一、二、三世代的种群趋势指数分别为8。
The population trend indexes for its lst, 2nd and 3rd generation were 8.
应用推荐