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物种多样性

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Mapping the geographic distribution of Aglaia bourdillonii Gamble,an endemic and threatened plant, using ecological niche modeling.

那就是为地球上已知的每一个生物物种建立一个网页,这个网页将展现该物种从分类、形态、地理分布、生态、进化等宏观研究,到DNA条形码、分子、遗传等微观研究,以及利用和保护等百科全书式的信息集合,并且通过由文本、图像、多媒体、GIS等多种技术手段来展现展现丰富的生物多样性信息(Wilson, 2003)。

A lot of people certificated the transgenic crops, simultaneously they also considered that the existence and development of target gene in natural environment probably change the species constitutes in nature ecological environment, pick up the deracination speed of many endangered species, make up the potential threaten and influence on the biodiversity.

许多人在认可转基因作物的同时,也认为,目的基因在自然环境中的存在和发展可能会改变生态环境中的物种组成,加快许多濒危物种的灭绝速度,对生物多样性构成潜在威胁和影响。

The diversity index was mainly affected by the number of bird species and evenness of population number among species.

群落多样性指数的高低主要受物种数量和各物种数量均匀度的影响。

On the other side, the relations among community classification, structure, diversity and distribution pattern were also investigated through the study of species composition, diversity and interspecific relation of Medicago falcata in Inner Mongolia.

另一方面,本文又以松嫩平原天然草地中的五脉山黎豆、多茎野豌豆、花苜蓿以及内蒙古的黄花苜蓿为研究对象,从植物群落的物种组成、多样性、种间关联等几方面探讨了我国天然草地中豆科牧草的群落类型、结构、群落多样性与分布格局之间的关系。

The population dominance index, Shannon-Wiener index, evenness, niche breadth and community similarity were used to analyze the diversity and eco-niche of soil moniliaceous hyphomycetes in five ecosystem-types.

利用种群优势度、Shannon-Wiener多样性指数、均匀度、生态位宽度、群落相似性等指标对该地区不同生境的土壤淡色丝孢菌物种的生态多样性及物种生态位进行了分析。

In this paper , the species resources and genetic diversity of lac insects were briefly introduced , and

本文将在紫胶虫物种、遗传多样性和生态环境的基础上讨论紫胶虫生物多样性

With the passage of time, species numbers of polychaeta increased (from 3 to 6) while species numbers and abundance of macrobenthos increased. A new pattern of macrobenthos was formed.

互花米草盐沼发育初期,大型底栖动物群落以腹足类为主,丰度和多样性较低,物种丰富度(d=2.18)和多样性(H′=2.19)均低于芦苇盐沼(d=2.61,H′=2.29)。

By bio-diversity we mean the variety of the species of animals and plants, genies and ecosystem of the earth.

我们所说的生物多样性,指的是地球上动植物物种、基因和生态系统的多样性。

We show that over timescales ranging from 500~10000 years, allele frequency data for polymorphic allozymes reveal a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and that populations in the invaded range are more subdivided genetically than those in the native range of each species.

从500~10 000年的时间尺度上,多态的等位酶位点上等位基因频率的数据表明:1)遗传多样性沿入侵路线呈不断下降的趋势,支持了冰河期避难所作为遗传多样性中心的作用;2)入侵地区的种群与该物种原产地的种群相比,遗传上的分化更为强烈。

Our results showed that there were high genetic diversities in many great ape species, except in mountain gorillas and Eastern lowland gorillas.

结果表明在山地大猩猩和东洼地大猩猩中,ND5的遗传多样性水平很低。而其他物种则含有丰富的遗传多样性。

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。