物种多样性

In this dissertation, four aspects of ECM fungi were studied in a subtropical forest, a ECM fungi identification and biodiversity estimation, using morphological and molecular ways; b genetic structure of ECM fungi population, taking two case studies; c structure of ECM fungal community, based on sporocarp and plant investigation over-ground; and d growth response of host and non-host plant to ECM fungi inoculation.

由于外生菌根真菌的宿主植物常常是一些生态系统的优势种和建群种，并且这些真菌还参与了许多森林生态系统的有机和无机元素循环、物种的竞争和共存、生物多样性的维持、生态系统的演替等过程，因而对外生菌根真菌的研究有助于对这些生态系统维持和演替机制的深入理解。

The invasion of Eupatorium adenophorum Sprengel may occupy the living space of other plant species, reduce the native biodiversity and ecosystem productivity, and cause serious ecological consequences.

紫茎泽兰入侵会挤占其他物种的生存空间，降低生物多样性和生态系统生产力，带来诸多负面生态效应。

The plant community composition changed and the community coverage increased over the wetland succession from primary swamp, through swampy meadow, to meadow. The number of associated species increased, while the dominant species abundances decreased. Through succession, the content of soil organic matter and total nitrogen declined. In contrast, the soil enzyme activity of catalase, protease and invertase increased; however urase declined.

随着湿地原生沼泽向沼泽化草甸、草甸的演替，湿地植物群落盖度增加、物种组成增多，群落优势种优势度减小，伴生种数量增加，植物多样性呈增加趋势；湿地土壤有机质、全氮含量不断减少，过氧化氢酶、蛋白酶、蔗糖酶活性增加，脲酶活性降低。

In this review, we discuss two applications of mtDNA analysis in zoological conservation biology .

本文从两个方面论述了mtDNA在动物保护生物学中的应用：一是对物种进行遗传多样性的检测与管理，二是进行与种群统计学数据相关的遗传分析。

The diversity of species and ecological groups of the zooplankton in sea waters south and east of Taiwan Island are described.

阐述了台湾岛东部和南部海域浮游动物的物种和生态类型多样性。

The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

随着物种的加速绝灭，保护生物多样性受到广泛地关注。

Genetic diversity was preliminarily investigated for nine natural populations of two commercially important species of Actinidia chinensis and A.

采用SSR分子标记技术对我国猕猴桃的2个商业栽培物种——中华猕猴桃和美味猕猴桃的9个天然居群(共221个样)的遗传多样性进行了初步分析。

The application to phylogenesis of gene rearrangement of mtDNA in Anura groups was analyzed. It showed that the higher Anura was, the more complicated gene rearrangement became.

本文分析了蛙类mtDNA基因重排多样性，并探讨了蛙类mtDNA基因重排在系统发生关系上的应用，发现越高等的物种，其线粒体基因重排越复杂。

Result 10 308 insects were identified, belonging to 9 orders, 43 families, 68 species of Insecta and I families, 1 species of Arachnida. The result revealed that the individuals of the pest sub-community were more than that of the natural enemies sub-community, the dominant concentration and dominance of the pest sub-community were the biggest, diversity index of the natural enemies sub-community was more than that of the pest sub-community.

结果］共调查昆虫10 308头，分属于昆虫纲9个目、43科6、8种以及蛛形纲1科、1种；野生植物害虫亚群落的物种个体数多于天敌亚群落的个体数，害虫亚群落的优势集中性和优势度最大，天敌亚群落的多样性指数大于害虫亚群落。

The result showed that species diversity of plant community in sands of the different succession phases was increasing trend. The plants of Leguminosae and Chenopodiaceae, as dominant plant species in the shifting sand, demonstrated a strong ability for adaption.

结果表明：不同演替阶段沙地内植物群落多样性呈不断增加的变化趋势，各演替阶段均有不同的植物群落和优势物种。

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！