查询词典 species

Island biogeography MacArthur and Wilson's theory of island biogeography states that the number of species found on an island is determined by a dynamic equilibrium between the immigration of new colonizing species and the extinction of previously established ones.

岛屿生物地理学麦克阿瑟和威尔逊的岛屿生物地理学理论指出，岛屿上物种的数目是由新移殖来的物种和以前存在物种的灭绝之间的动态平衡决定的。

BioGraph is a program to aid the biochronological correlation of species by constructing concurrent range zones using a mathematical model. The basic idea is to construct a discrete sequence of coexistence intervals of species.

这种软件通过利用数学模型建立同时发生的范围区域，来反映物种间的生物年代学的相互映射关系，其基本目的是建立物种间共生的不连续次序。

After consulting relevant materials, 58 endemic species of Chinese freshwater bivalves belonging to 17 genera in 2 families were systematically sorted out, most of which belong to the family Unionidae (57 species, 16 genera).

通过查阅有关文献整理得出，中国淡水双壳类特有种计有58种，隶属于双壳纲2科17属，其中主要是蚌科的种类（16属57种）。

Another Three Species of Lernanthropus de Blainville, 1822 Parasitic on Marine Fishes of Taiwan, with a Key to the Species of the Genus Lernanthropus Found in Taiwan

并列篇名寄生在台湾海水鱼上属於人形鱼虱科的另三种人形鱼虱属(Lernanthropus de Blainville， 1822)桡足类，并对在台湾所发现属於此属的种类做－检索表

The floristic components have character as following: geographic -al elements of species is relatively simple;there are more species of world distributi -on and tropical genera,and there have world blazon predestined relationship and tropical predestined relationship.Composite,standing grain,legumina have absolutely predominance make of the backbone of floristic.Seed plants are mainly made up of herbage plants.

种子植物区系成分具有以下特点：种的地理成分相对简单；表现出明显的亚热带特征，并具有热带向温带过渡的特点；菊科、禾本科、豆科占有绝对优势，构成植物区系的骨干；种子植物主要由草本植物组成，草本植物占绝对优势。

In the thesis, we choose six wild species in northeast of China to study the configuration, physiological characteristic, peculiarity of dormancy and bourgeon as well as seedlings growth process. The results as follows:(1) Morphological difference of six species in Iris is obvious.

基于此目的，本论文以东北野生鸢尾属中的6种典型植物为研究对象，从种子形态结构、种子各项生理指标(包括生活力、含水量、吸水性)、种子的休眠与萌发、种苗的发育过程几个方面进行研究。

The endless disputes whether or not some fifty species of British brambles are good species will cease.

约五十种的英国悬钩子是否是真实物种这个无休止的争论也可告一结束。

The niche breadths of same plants vary greatly among different communities and the competitive relations of the plant species in different communities vary depending on the combined actions of the niches of the species, stable landforms and soil conditions, and annual rainfall fluctuations.

同一种植物在不同群落中的生态位宽度变幅较大，不同群落内部植物种竞争关系的差异是由物种的生态位和由相对稳定的地貌、土壤条件以及随年际变动的降水条件共同作用的结果。

Niche breadths of twenty dominant species were analyzed using Shannon-Wiener niche breadth index, and the dominant species were classified into four ecological groups.

采用Shannon-Wiener生态位宽度指数和Petraitis生态位重叠指数测定了滹沱河流域湿地植被20个优势种群的生态位宽度和生态位重叠。

Also it synthesize the natural law on vegetation distribution and the present situation on urban forestry construction to define the main proportion on urban species actually:the proportion between aiphyllus tree and deciduous tree is 3:7; the proportion between arbor and shrub is 2:1; the proportion between coniferous tree and broadleaf tree is 1:4; the proportion between fast-growing trees and slow-growing trees is 1:1.The following tree species programmed in urban forestry construction of Qingdao on the above-mentioned demanding on trees planning in this thesis

本文以上述提到的树种布局规划要求，分别规划出了青岛市城市森林建设中的行道树种、公园绿化树种、游园、街头绿化树种、山地风景林树种、居住区绿化树种、机关、学校、医院等处的绿化树种、工矿区绿化树种、海岸抗海雾、海风树种、耐盐碱树种、垂直绿化树种、地被植物，并对城市森林的近自然化配置，以及在天然森林已不存在的地方，运用技术模拟原来的天然森林进行恢复和重建进行了初步阐述。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。