在不同种群之间，种群大小的波动方式存在显著的差异。
However, there are distinguishable differences among populations in the way the population size fluctuates.
模拟分析了繁殖群体大小、繁殖偏倚和占群优势雄性数目对麋鹿的有效种群大小的影响。
We simulated the impacts of breeding herd size, reproductive skew and numbers of breeding stags on the inbreeding coefficient of Père David's deer.
本文用种群大小结构代替年龄结构研究了沙地云杉种群的大小结构、分布格局和动态规律。
The size structure and distribution pattern of Picea mongolica population on sand dune and their rerlationship to eco-environment are studied by size structure in place of age structure.
当时的人数甚至不及现在濒临灭绝的黑猩猩（21000头）和大猩猩（25000头）的有效种群大小（即能生育的个体数量）。
That number is smaller than current figures for the effective population size (or number of breeding individuals) for endangered species such as chimpanzees (21, 000) and gorillas (25, 000).
通过单位面积取样调查，定量地分析了开花期星星草无性系种群的数量特征及其与无性系大小之间的关系。
The relationship between quantity characteristic and the size of clone of Puccinellia Tenuiflora clone population at flowering stage sampled by unit area.
估计野生扬子鳄种群实际大小在122条左右，分布于16个斑块状栖息地。
It is estimated that the full size of the wild Chinese alligator population is about 122, distributed in 16 plot-like habitats.
藻类食物的种类和品系对角突臂尾轮虫的种群增长率、个体体积、卵体积和相对卵大小均有显著的影响。
Food type and strain affected the population growth rate, body volume, egg volume and relative egg size significantly.
种间种内竞争的结果形成南方红豆杉种群世代不同大小个体的高度结构。
The results of intraspecific and interspecific competition formed the different individual height of Taxus chinensis var. mairei population.
相对与身体大小的和年龄差异，种群间窝卵数、卵大小和窝卵质量间也有显著差异。
After accounting for differences in body size and age among populations, clutch size, egg size and clutch mass differed significantly among populations.
病原菌在自然植物种群中普遍存在，其对寄主植物的生长发育，对寄主植物种群的大小、结构、动态、遗传和进化等都有重要影响。
Pathogenic fungi are common in natural plant populations, which exert impacts of the size, structure, dynamics, genetics and evolution of host plant populations.
据一些种群的大小频率直方图和生存曲线讨论了部分生物的生存特征、空间分布及其与环境的关系。
The life property, the distribution and relationship of some organisms with the environment are discussed according to their size-frequency histograms and survivorship curves.
高度级和基径级分析表明群落内中等大小个体具有保守的生活史策略， 优势种杜鹃为远期衰退种群。
The analysis of height and base area classes of the shrub layer indicated mid-size individuals had conservative life strategies in this community, and R. simsii was a future declining population.
结果提示种群遗传距离的大小与它们生物学上的相似性有关联。
The results suggest that the genetic distance might be correlated with their biological similarity.
结果提示种群遗传距离的大小与它们生物学上的相似性有关联。
The results suggest that the genetic distance might be correlated with their biological similarity.
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