多样性

The result showed that:(1) There were a higher density of Ostreidae and Balanidae and a lower biodiversity in the cay sampling section of Daxie Island.(2) No significant difference was found in the macrozoobenthos community among the tide plat sampling section in Daxie Island.(3) There was a lower macrozoobenthos species number, biodiversity, and a higher density of Sternaspis scutata and Capitella capitata than those in the sea area beside Daxie Island. Moreover, a significant difference was found in the macrozoobenthos community between the sea area of Daxie Island and the adjacent islands.

结果发现：(1)大榭岛岩相潮间带断面牡蛎科和藤壶科等科的物种栖息密度较高，生物多样性较低；(2)泥沙相潮间带底栖动物状况与其他海岛差别不显著；(3)大榭岛近岸海域底栖动物种数少于其他海岛近岸海域，且前者不倒翁虫和小头虫等多毛类物种栖息密度较高，生物多样性较低，群落结构与其他区域相差较大；(4)环境质量的生物评价结果显示，大榭岛近岸海域扰动程度高于其他海岛近岸海域。

Sino-Indian region has been regarded as one of richest area in biodiversity in the world. In the present project,a biodiversity and biogeographical study on Chironomidae in this region is performed via international collaboration.

选择世界生物多样性最丰富地区之一的中印区作为研究的地理范围，通过国际合作，在广泛收集研究材料基础上，开展摇蚊科昆虫生物多样性和生物地理学研究。

It could be found that the effects of disturbances on plant species composition and diversity were related to the characteristics of disturbances and plant communities, bionomic of plant species, and the resources of the disturbed locations.

在介绍了干扰的概念及其性质和干扰对物种多样性影响的有关假说基础上，以森林干扰为主要对象，探讨了干扰对植物群落物种组成的影响，并从干扰类型、干扰强度和干扰频率等几个方面阐述了干扰对植物群落物种多样性的影响；另外，还分析了重要的小尺度干扰―林隙在该方面的影响。

The strong FSGS and large genetic patches may induced high level of biparental inbreeding, which reduced effective outcrossing rate.

综合野生大豆遗传多样性水平、遗传结构与交配系统的研究进行分析，在制定野生大豆保护策略特别是原位保护策略时，保持种群生境一定程度的自然扰动可以打破种群内空间遗传结构或是减弱空间遗传结构，这将提高有效异交的频率，增加种群内杂合子的频率，从而维持种群内较高的遗传多样性水平，保持野生大豆的进化潜力。

Of the 36 tussah silkworm varieties, the Nei's genetic diversity index was 0.3243±0.1515, and Shannon information index was 0.4871±0.1975, suggesting that bivoltine tussah silkworm varieties are still rich in genetic diversity even having been conserved in the same place for quite long time. Nei's genetic identity of the 36 varieties ranged from 0.4959 to 0.8347, 96.59% of which was above 0.6, revealing large similarity between different varieties. A clustering analysis showed that these varieties formed two separate clades, one of which included varieties bred by the institute and the other included imported varieties from other provinces or countries.

供试品种资源的Nei氏遗传多样性指数为0.3243±0.1515，Shannon信息指数为0.4871±0.1975，表明长期同地保存的二化性柞蚕品种资源同样具有丰富的遗传多样性；供试品种的Nei氏遗传一致性范围在0.4959~0.8374之间，达0.6以上的占96.59%，表明多数品种资源的相似程度较高。36份品种资源分别以辽宁省蚕业科学研究所育成种为主和以国内外引进种为主聚为两大类群。

This tool was used to build the most complete diversity database of Braconidae in China, which consists of 731 taxa (including 569 species) and 128 keys.

以此开发构建的茧蜂科多样性数据库已收录分类阶元731个，茧蜂569种，检索表128个，是国内茧蜂分类信息最全的多样性数据库。

The genetic diversity of 26 chestnut cultivars grown in Shandong was evaluated through 29 pairs of SSR primers. The aim was to reveal their genetic diversity and to exploit and make use of the germplasm of Castanea. mollissima.

利用29对SSR引物对26份山东主栽板栗品种进行遗传多样性分析，以了解山东板栗的遗传多样性分布情况，为种质资源的利用和开发提供依据。

The species diversity of Castanopsis communities was not affected by altitude, which indicates the consistency of species diversity in Jinggang Mountain.

群落物种多样性没有表现出一个明显的随海拔高度的变化规律，这表明了井冈山栲属群落物种多样性的一致性

Plant species richness and plant functional diversity have a positive influence on overall catabolic activity and catabolic diversity of soil bacterial community.

植物种丰度和植物功能多样性对土壤细菌群落的代谢活性和代谢多样性有成正比的影响。

Prattii- Ailanthus altissima deciduous broad-leaved forest community and Cerasus trichostorna-Cerasus dielsiana-Acer caudatum deciduous broadleaved forest community , had lower total richness and Shannon-Wiener index .

3人工林群落与次生林群落相比，人工林群落具有较低的物种丰富度指数和Shannon-Wiener多样性指数以及较高的优势度指数，次生林具有较高的物种丰富度指数和Shannon-Wiener多样性指数以及较低的优势度指数。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。