Ample evidence shows that there have been apparent changes in avian population dynamics , life - history traits and geographic ranges in response to global climate change 已有大量研究结果表明，鸟类已经在种群动态变化、生活史特性以及地理分布范围等方面对全球气候变化作出了相应的反应。
The dynamics in different stages : the populations were significant difference in different stages to a certain extent in seven tobacco cultivars , while the flora was not significant difference 不同栽培时期烟草植株中内生细菌种群动态：七个试验品种在各个栽培时期带菌量有时表现显著差异。
The results tested the pest data showed that the new method may be tried for the mid - term or long - term forecasting of the population dynamics of insec t pests , and it is a good model for application 研究结果表明，该预测模型为农业害虫种群动态的中长期预测预报提供了一种新的研究方法，是一种优良的模型。
In this paper , we analyse the modeling method of multiple fuzzy regression forecasting model , and study its application in population dyn amics of 100 - plant - egg amount of the second generation of the corn bor er 论述多元模糊回归预测模糊的建模方法，探讨该预测模型在第二代玉米螟百株卵量种群动态上的应用。
The dynamics of endophytic bacteria in tobacco roots , stems and leaves : bacteria population densities were extremely variable in different tissues . the roots had the greatest population of endophytic bacteria , followed by in stems and leaves 烟草不同器官中内生细菌种群动态：根带菌量最多，茎次之，叶最少；所分离到的菌群也是根最多，茎次之，叶最少。
Through interpreting the tm images and extracting the forest coverage of hetian district , the cutting of simulation maps was completed with the help of arcgis software , and the a . cinerarius population distribution in concrete forest patchs was thus displayed 通过tm卫片解译提取和田地区森林图层，在arcgis中完成对插值模拟图的切割，从而把春尺蠖种群动态的年际分布显示在具体的森林斑块内。
Population dynamics the study of the factors influencing the fluctuations in numbers in a population or of its gene pool : the factors affecting birth and morality rates , immigration and emigration , and reproductive potential ( for example , seed size , dispersal , and dormancy ) 种群动态：主要研究影响种群及其基因库数量波动因素：这些因素影响种群内出生率、死亡率、迁入及迁出、生殖潜力（如种子的大小、传播以及休眠） 。
Systematic research across multiple subjects such as biology , chemistry and physics will be carried out , in order to understand the population variation of hab species in coastal china seas , to understand the mechanism of hab damage , to elucidate the ecological and oceanographical mechanism of hab construction , thereby provide scientific foundation for efficient methods for " hab prevention , control and treatment " , and contribute to the global morden theoretical system of hab ecology and oceanography 通过生物学、化学和物理海洋学多学科交叉综合研究，掌握我国近海赤潮生物种群动态变化规律，了解其危害机理，阐明赤潮高发区赤潮形成的生态学、海洋学机制，为建立"预防、控制和治理赤潮"的有效方法提供科学依据，同时也为发展全球赤潮生态学和海洋学现代理论体系作出贡献。
We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability , predation and interspecific competition on population dynamics and spatial behavior of reed voles , microtusfortis . we expected to test two hypothesises : ( 1 ) availability of high quality food , predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine , predation and interspecific competition have independent effects on spatial behavior of microtine 以2 2 2析因实验设计，在野外围栏条件下，探讨食物可利用性、捕食及种间竞争对沼泽田鼠( microtusfortis )种群动态及空间行为的作用，旨在检验下述特定假设： ( 1 )高质量的食物可利用性、捕食及种间竞争对植食性小哺乳动物种群系统动态具有独立的和累加的效应； ( 2 )高质量的食物可利用性可降低田鼠个体间的攻击行为水平，并导致其巢区减小；捕食与种间竞争对田鼠的空间行为亦有独立的作用。
This paper briefly reviews the possible effects of climate change on avian biology and ecology all over the world , with emphasis on new findings from several long - term studies in europe and north america , which provide unique opportunities to investigate how long - term changes in climate affect birds at both individual and population levels 根据全球范围内气候变化对鸟类影响的研究资料，尤其是北美和欧洲的一些长期研究项目的成果，综述了气候变化对鸟类分布范围、物候、繁殖和种群动态变化等方面的可能影响。
