natality

It has been shown that in many clonal perennials, when light is limiting, shoot natality decreases and shoot mortality increases with increasing stand density.

对许多多年生克隆植物来说，大量的研究表明：当光是限制因子时，随着立地密度的不断增加，克隆分株的出生率逐渐减小、死亡率逐渐增加。

Reduction of competition for food stimulates both natality and survival.

食物竞争的减少,刺激了出生率和存活力.

Not only have solar activities a close relationship with the incidences of plague and epidemic cerebrospinal meningitis, but also high correlation with onco-genesis and infant natality and mortality.

太阳活动不仅与人间鼠疫及流行性脑脊髓膜炎两类传染病年发病率间存在着较为密切的相关，而且还与肿瘤的发生和婴儿出生率和死亡率的增加、克山病的发生有关。

The paper expatiates that the high quality service of family planning is promoted by preventing venereal disease and aids and intervening natality abnormality, based on the technology service of family planning.

本文围绕计划生育技术服务工作，结合性病和艾滋病的预防、出生缺陷干预等来促进计划生育优质服务工作。

The results of stable age-distribution, instantaneous natality, instantaneous mortality of water chestnut beetle at different temperatures shovved: the percentage of the immature was quite high, more than 85%.

同时计算了种群的稳定年龄组配，瞬时出生率和瞬时死亡率，在各个温度条件下，菱角萤叶甲的未成熟期所占的比例相当大，都在85%以上；

Natality and yearly increase rate of the deer population decreased year by year as the population size increased.

种群出生率和年度增长率随种群数量增加而逐年降低，而种群死亡率却有增加趋势。

This 'natality depression' reached its maximum levels about 6 months after the pandemic peak of the previous autumn.

这种“生育抑郁症”在去年秋季疫情高峰后大约6个月达到了最高水平。

We focused on the age structure and natality. Environmental and cluster temperatures as well as worker bees foraging intensity were observed continuously. The influence of these factors on population dynamics were analysised deeply.

本文研究了福州中华蜜蜂种群数量动态，重点关注了年龄结构和出生率，并对环境和蜂巢温度、蜜粉源和工蜂采集强度进行连续观测，深入分析了这些因子对种群数量动态的影响。

Study on Main Manifestation and Its Contemporary Meanings of the Traditional Morality of Yi Natality

试论彝族传统道德的主要表现形式及其当代意义

The dip in birth rates in spring of 1919 was followed by 'a compensatory natality increase in late autumn 1919 and early spring 1920, when natality significantly exceeded the expected rates.'

在1919年春季出生率下降之后，“1919年深秋和1920年初春的出生率出现了补偿性上升，当时的出生率明显超过了预期。”