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物种多样性

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One thing, this protection ensures the species diversity, connects the whole biological chain to operate in gear and accordingly maintains the whole nature on balance.

首先,他保护了物种的多样性,保全了整个生物链,从而使得整个自然界处于一种平衡状态;其次,原始森林大量的树木对于环境的净化和资源再生都能起到很大的作用,这样的地方当然要保持它们的原始形态。

Coleoptera species accounted for the greatest share in phytophagous insects, and spiders were the major natural enemies. The largest proportion of neutral insects was dipteran.

稻田节肢动物中各目、科的种类数量所占比例差异很大,在植食性昆虫中鞘翅目所占比例最大;在天敌中以蜘蛛类最多;在中性昆虫中,以双翅目比例最大;同时在物种、功能集团和营养层3个组织层次水平上分析了稻田节肢动物群落的结构和多样性。

Three centers of endemism were identified by overlapping distribution maps, namely the "Hengduanshan Mountain areas","Mountain areas in north Sichuan Province and Qinling as well as south Gansu Province", and "Taiwan Island".

在广泛搜集有关分布资料、对我国鸟类特有种的地理分布情况进行系统整理并建立数据库的基础上,运用GIS技术处理物种分布数据,研究了中国鸟类特有种的多样性及其分布格局。

Based on the data collected from 8 plots and using Shannon and Simpson index, this paper calculated and analyzed diversity of Eupatorium catarium community in Hainan. And, niche breadth and niche overlap of E. catarium community were analyzed by using Levins and Pianka formulae. The results were as follows:(1)The diversity of E.

基于对海南儋州地区假臭草群落的调查,应用辛普森和香农指数测定了该地区不同生境类型的假臭草群落的生物多样性;并以各种杂草的重要值作为生态位计算的资源状态指标,应用Levins公式和Pianka公式计算分析了该地区假臭草群落各物种的生态位宽度和生态位重叠。

It was showed that:(1) With decrease of tourism disturbance,species evenness and total diversity increase gradually.

结果表明:1随着旅游干扰程度的减少,物种的均匀度和综合多样性表现出不断增大的趋势。

The results showed that sample area influences the community species richness, species diversity index and evenness markebly.

结果表明:取样面积对群落物种丰富度、多样性指数及均匀度的测度结果具有明显影响。

Changing the abundance of natives versus exotics affects all of the other species that used to depend on the natives for food or shelter. So, it's not in any way to say that increasing biodiversity is a good thing.

改变本地种的丰富程度与非本地种在食物与住所方面影响其他物种相比,无论如何增加生物多样性都不能说是一件好事。

The lack of a significant correlation between overall plant species richness and geometrid diversity indicates that tropical geometrid moths may not be very selective in their food plant choice.

整体植物物种丰富度与尺蛾科多样性缺乏显著关联,暗示热带的尺蛾可能对寄主植物并不太有选择性。

In 1922,Gte Turesson found evdence for the existence of stable varieties within species in nature.

1922年Gte Turesson发现了自然界物种稳定多样性存在的证据。

It is an inartificial species gene store, with 994 species of seed plants in 529 genera of 134 families and 35 rare conserved plants. The floristic elements, whose origin is ancient, are complex, with many ancient families and genera as well as many relic species.

六股尖自然保护区是皖南山区中亚热带植被带的重要组成部分,其种子植物多样性丰富,具有种子植物134科,529属,994种,有珍稀保护植物35种,是一个天然的物种基因库。

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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。