生态种群

Because of the exotic weeds with strong reproductive capacity, adaptability and adversity-resistance, and short of strong competitive plants and natural enemies in the local area the exotic weeds such as Aiternanthera philoxeroides, Eichhornia crassipes, Ageratina adenophorun and Ageratum conyzoides etc.

由于农林牧渔业生产、绿化美化等目的有意引进；或旅游、交通工具等无意引入；或自身扩散传播的自然入侵，外来植物一旦逃逸人为控制进入自然生态系统并能自行繁殖和扩散，形成野化种群，变成外来入侵植物，成为危害农牧业生产和破坏生态环境的有害杂草。

Although each of the 11 species of the bark beetle had its own spatial niche and overlogs niche, they could attain competitive equilibrium and coexistance according to their requirment for different nutrition and space, the interference of population density and the different time interval attacking the host tree.

虽然，这11种小蠹虫具有各自不同的生态位宽度，且存在不同程度的生态位重叠，但各小蠹虫可依据其对寄主树木营养和空间需求的不同、种群密度的相互制约，以及入侵寄主树木时序的差异达到竞争的平衡和共存。

With theoretical introduction and example analysis, the relationship between the living beings and it's environment could be elucidated at the level of individual, population, biocoenosis, ecosystem, and biosphere, respectively, aiming at making the students have the capability to grasp the fundamental knowledge system of ecology and ecological ideology, and improving the understanding of the environment problem.

本课程主要从个体，种群，群落，生态系统和生物圈等不同层次上分析生物与环境之间的关系方式，通过理论推介，案例剖析，使学生掌握生态学的基本知识体系和思想方法，形成宏观的生态思维，提高对当前资源和环境问题的认识能力和把握水平。

The populations with high value of niche breadths had high niche overlap.

且生态位宽度较大的种群间生态位重叠值较高。

This was attributed to high population growth rates for rotifers under these ecological conditions because of reduced copepod predation on them through a trophic cascade from fish.

这个归因于轮虫在这些生态条件下的较高种群增长率，这些生态条件是由于桡足类对它们的捕食通过一个鱼类高富营养阶段。

Hohn M E%Liebhold A M%Gribko L S Geostatistical Model for Forecasting Spatial Dynamics of Defoliation Caused by the Gypsy Moth(Lepidoptera:Lymantriidae) Environmental Entomology , 1993,5

李友常%夏乃斌%屠泉洪%骆有庆%温俊宝杨树光肩星天牛种群空间格局的地统计学研究生态学报， 1997，(4)石根生%李典谟马尾松毛虫空间格局的地学统计学分析应用生态学报， 1997，6

In the past literature to explore the permanence of such system, the author always assumed the intraspecies density-dependent coefficients of all the species in the system have positive infimum. Obviously, such assumption is far from reasonable in the more superior ecological environment.

以往文献在探讨此类生态系统的持久性时均假设系统内所有种群内部密度制约项系数的下确界恒正，显然此假设在较为优越的生态环境下是不尽合理的。

Niche also is put into this article to describe relations of enterprises in industrial cluster, such as competition, intergrowth and autoeciousness.

本文将种群生态学中的生态位的概念引入到产业集群的研究中，并以生态位的包含、交叉和分离分别解释产业集群中企业之间的寄生、竞争和共生的关系。

Sufficient conditions for existence of positive periodic solutions of these systems are established and we investigate a stochastic Lotka-Volterra ecosystem, by use of the mixed quasi-monotone theory and Liapunov function method, some new results are obtained.

最后，我们研究了n种群随机Lotka-Volterra生态模型，利用混合单调流理论和It〓型随机微分方程知识，得到了其解过程的均方渐近稳定性和强生态稳定性的结果。

Most importantly, our team are famous for much research on ecology, physiology,molecular phylogenesis of bats at home and abroad, we have gained much originative result in this field, and we firstly found and studied the third piscivorous bat, Myotis ricketti.We provide evidence that the species Myotis ricketti is piscivorous, and close negative relationships were found firstly within Rhinolophidae and Hipposideridae between call frequency and ear length. Some species of taxology status in rhinolophidae were studied by molecular phylogenesis; phylogenesis relationship between rhinolophidae and hipposideridae and different populations of miniopterus schreibersii were also studied; we also studied Social structure of Tylonycteris pachypusa and T. robustula and the isolating mechanisms of ecological niches.

在蝙蝠生态、生理、和分子系统进化领域完成了大量研究，奠定了本项目组在此领域中的国际地位，首次在国际上证实性发现并系统研究了世界上第3种食鱼蝙蝠--大足鼠耳蝠；首次提出菊头蝠科蝙蝠回声定位叫声频率与耳长负相关；利用分子系统学研究方法澄清菊头蝠科内一些种的分类地位，菊头蝠科和蹄蝠科的关系，以及普通长翼蝠种群间的系统进化关系；系统地研究了扁颅蝠属仅有两个姐妹种的社会组织结构和生态位分化。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。