species variation

Discussion on the Species Variation Problem in the Identification of Traditional Chinese Crude Drugs

中药材鉴定中一些物种变异问题讨论

Through cluster analysis , the 16 populations were divided into 4 categories . The populations with similar ecological environment and prototype clustered together , a fact basically consistent with the result of morphological research , indicating that species variation is closely related to the environment .

聚类分析结果表明：16个种群大致可分为4类，生境和表型相近的种群基本聚为一类，和形态学研究的结果基本一致，证明物种变异与生境密切相关。

Species variation ratio is very little in nature condition , the ratio can be rised by Laser but still little .

物种在自然条件下的变异率极小，产生无核的几率更小，经激光广西大学硕士学位论文作用后，突变几率有了明显的提高，但数量级仍然很小。

Quantitative distribution and dominant species variation of crab in the winter and summer of Sanmen Bay , Zhejiang Province

浙江三门湾冬夏季蟹类数量分布和优势种的变化

Species variation in the kinetic properties of ribulose-1 , 5-bisphosphate carboxylase / oxygenase

一些栽培作物的核酮糖-1,5-二磷酸羧化酶/加氧酶动力学特征

The second part of official documents from the party and government organs in writing perspective the actual situation of language use , analyzes documents Language use existing phenomenon of mistaken identity and cultural species variation alternative .

第二部分在写作视角下从党政机关公文文种使用的实际情况入手，分析了公文文种使用存在的张冠李戴现象和文种变异另类用现象。

Objective To observe the changes of malonyldialdehyed ( MDA ) and superoxide dissmutas ( SOD ) contents in spinal cord after two different types and degrees of spinal cord injury ( SCI ) and to study the reactive oxygen species variation in secondary pathological damage of the spinal cord .

目的研究脊髓损伤（SCI）后脊髓组织内丙二醛（MDA）和超氧化物岐化酶（SOD）的含量变化，以探讨活性氧（ROS）在脊髓继发性损伤中的作用机制。

Application of Canonical Correlation Analysis in the Research of Tree Species Geographic Variation

典型相关分析在树种地理变异研究中的应用

Preliminary Studies of Aromatic Constituents among Three Species ( Variation ) of Camellia

三个山茶花种（品种）香气成分初探

For the eight species , variation in the degree of thermal softening was observed .

8种品种的热软化程度差异也被观测到。

The AMOVA analysis indicates that the seedling population variances composed a large part of the species genetic variation of M.xiaojinensis .

AMOVA分析显示小金海棠的遗传变异有相当一部分来源于群体间。

The increase in species , variation in community structure and obvious recovery in relative biomass index and relative biotic density index of necton indicated that ecological environment of Yun-dang lake had been improved greatly by further comprehensive control and management since 1993 .

游泳生物种类的增加和群落结构的变化以及相对生物量指数和相对生物密度指数的明显恢复，表明筼筜湖经过1993年以来的进一步综合治理，生态环境的改善是显著的。

Species composition , variation and distribution of these pests are discussed in this paper .

依照本次调查的结果，对江苏省非鞘翅目仓储害虫的分布，种类组成及变化进行分析讨论，种数的增加与农土特产等物资交流密切相关。

In addition , the species composition , variation and distribution of these pests in Jiangsu Province are discussed in the paper .

并对该目害虫在江苏省的分布、种类组成及变化进行了初步分析。

The results indicated that T.karelinii , which was close to T.hispida in taxonomy , was not a natural species but a variation .

结果表明：短毛怪柳系统关系与刚毛怪柳很近，可能是刚毛怪柳的变异；

This article represents some of the major aspects of abiotic stress research in barley including developmental genes , wild species / landrace variation , and genetic mapping ( QTLs ), and the research advance and current objectives in the use of molecular markers to abiotic stress tolerance .

综述分子标记在大麦耐非生物胁迫研究中的应用及其研究进展，包括发育基因效应、野生种或地方种的变异、遗传（QTLs）图谱等。

The various characteristics of lectin ? one of shrimp ? s essential humoral immunological factors were researched , including haemagglutinating titre of adult shrimps ? lectins against erythrocytes from several vertebrate species and its variation followed by the changes of season , body sizes et al .

本论文重点研究了一种重要的对虾体液免疫因子&凝集素的各种性质，包括成虾血淋巴中的凝集素对各种动物红细胞的凝集效价以及其随季节、体长等因素的变化。

Species compositions and number variation of phytoplankton in the West Lake of Hangzhou

杭州西湖浮游藻类的种类组成和数量变动

Species composition and quantity variation of phytoplankton in inshore waters of the Bohai Sea

渤海近岸浮游植物种类组成及其数量变动的研究

In our works , all 74 species seeds exhibit high variation among fruit types , life forms and families .

种子大小。在不同果实类型、不同植物生活型、不同科中种子大小都表现出极大的差异。

Food storage is an important adaptation of some animal species to the temporal variation or unpredictable food supplies .

食物贮藏是许多动物对不可预见的食物供应变化的一种重要适应。

Species composition and seasonal variation of fish larvae and juveniles in Jiulong River estuary

九龙江口仔、稚鱼种类组成和季节变化

Common species composition , quantity variation and dominant species of planktonic microalgae in low salinity culture ponds

低盐度养殖池塘常见浮游微藻的种类组成、数量及优势种群变动

The ecological study of small-sized fish in the East China Sea ⅰ & the species composition and seasonal variation of small-sized fish

东海区小型鱼类生态研究Ⅰ&小型鱼类的种类组成及季节变化

There are three approaches to identifying populations for priority conservation of important species , including genetic variation based , genetic distinctiveness based and genetic contribution based .

目前确定优先保护种群的方法主要有3类，分别为基于遗传变异、基于遗传差异性和基于遗传贡献率的方法。

Marine microbes show the diversity at the species , heredity & variation inside the species and ecological functions , which is called marine microbial diversity .

由于海洋环境的特异性，海洋微生物表现出在物种、种内遗传变异和生态功能上的多样性，即海洋微生物多样性（Marinemicrobialdiversity）。

Genetic diversity is the fundamental element of biodiversity , including the genetic differentiation between populations in a species and the genetic variation among individuals within a population .

遗传多样性是生物多样性的基本组成部分，是种内不同群体之间或同一群体内部不同个体之间遗传差异的总和。

We speculated that there are some new species , sub-species or variation in the genus Agrocybe , and further researches needed to test this conclusion .

在该属内也许还存在着一些变种和亚种，有待进一步更加深入的研究。

According to the data selected from bottom trawl fishery resource monitoring in the East China Sea from 1997 to 2000 , the species composition and seasonal variation of small-sized fish were analysed .

根据1997~2000年东海区底拖网渔业资源调查资料，分析和讨论了东海区小型鱼类的种类组成和季节变化。

Luckily , because of random mutations in our genes , most species exhibit enough genetic variation , or biodiversity , that a disease that kills one member won 't necessarily kill the next .

幸运的是，因为我们的基因是随机突变的，大多数物种都呈现出足够的基因变化或生物多样性，所以让一个成员死亡的疾病并不一定能使其他成员死亡。