key species

researches on the state key conservation plant species in zhouzhi national-level nature reserve

周至国家级自然保护区重点保护野生植物的研究

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Geo-distribution Pattern and Protection Status Assessment for the Key Species of China

我国重要珍稀濒危物种与类群的地理分布格局及保护现状评价

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bees are a key flower-pollinating species.

蜜蜂是一种关键的传粉物种。

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the morphological characters for species identification are illustrated and a key to the species of white grubs in lawns in beijing is provided.

提供了鉴别特征图和北京地区草坪蛴螬种类检索表。

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a key to the species and chinese and latin descriptions of the new species are provided.

文中列有上述种类的分种检索表和新种的中文和拉丁文描述。

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A Discussion on the Key to Species in the Genus Oryza

稻属植物分种检索表的探讨

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the panda is a key utilization species in china.

熊猫是中国的一个关键利用物种。

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the genital structures of the new species are figured and a key to the chinese species is given.

文中给出了中国角麦蛾属分种检索表和雌雄外生殖器特征图。

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a key to the chinese species of the genus is provided.

新种模式标本保存在中国科学院动物研究所。

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two new records of ciidae associated with stored products were morphologically described in the paper and a key to the species found in china was presented.

本文对木蕈甲科仓虫两新纪录种的形态进行了报道，并提出了已知木蕈甲科仓虫检索表。

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the key database consists of family key tables, genus key tables and species key tables. the classification database and key databank were built by mysql.

检索表数据库包括分科检索表、分属检索表和分种检索表。

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Chemometrics have been used as a data mining tool to identify key species that would mostly affect the overall properties of feed and products.

而在解析庞大的分析数据时，可使用化学计量学方法来进行数据挖掘从而鉴定关键组分。

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Distinguishing Key Species of Aquatic Ecosystem of the Main Yellow River

黄河干流水生态系统关键物种的识别

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Discussion on the Changes of the List of Key Species of Wildlife within Provincial-protection in Shaanxi

陕西省重点保护野生动物名录增减变化商讨

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a key to 21 species of bruchidae intercepted in plant quarantine inspection is presented and notes on morphological characteristics, host and distribution for most of the species are given.

本文对我国口岸检疫截获的21种豆象科害虫列出成虫检索表，并就多数种的鉴别要点、寄主及分布进行了介绍。

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To protect key species is one of the important measures for keeping healthy life of the Yellow River.

关键物种的保护是维持黄河健康的重要措施之一。

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where there is 90 percent reduction of key species,

导致关键物种减少90%，

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among them, 57 species are rare and endangered, 40 species are national key protected, and 32 species are not only rare and endangered but also national key protected, 33 species are endemic to china.

其中珍稀濒危植物有57种，国家重点保护野生植物有40种，有32种植物同时列为珍稀濒危植物和国家重点保护野生植物，有33种为中国特有种。

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a key to these species was given, and a species list, with a brief description of literature cited and geographical distribution for each species, was also provided.

为6种植物补充了地区分布新资料.列出了分种检索表，对每个种类的文献引证及地理分布进行了简要记述，并对中国分布新记录及《中国植物志》遗漏种进行了形态学描述。

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Tamarix ramosissima, one of the most widely distributed plants of its genus, belonged to the key species for maintaining desert ecosystems in arid regions of China.

多枝柽柳是分布最为广泛的柽柳属植物之一，也是维持干旱区荒漠生态系统的关键植物种。

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The site protects key threatened species, including giant arapaima fish, the Amazonian manatee, the black caiman and two species of river dolphin.

保护区为许多珍稀濒危动物提供保护，例如巨骨舌鱼、亚马逊海牛、黑凯门鳄和两种淡水豚类。

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the wolf is a key stone species in this ecosystem.

狼是这个生态系统中的关键物种。

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These include the centuries-old custom of "bul", where leaders would call a temporary stop to fishing for key species in order to give fish stocks an opportunity to replenish.

这些传统包括几个世纪以来被称之为“bul”的旧习俗，领导人会要求暂停捕捞一些重要与种类的鱼，给鱼类总储备量繁衍补充的机会。

六级真题- 2017年 12月 2卷 短文填空

The results show that the basis of restoration of biodiversity is choosing the suitable pioneer and key species.

选择适宜的先锋种和关键种是恢复与发展物种多样性的基础。

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Scientists from Sri Lanka and Germany have developed a new method to measure biodiversity, and say it could help identify key tree species.

斯里兰卡和德国的科学家开发出了一种测量生物多样性的新方法，他们说该方法可能有助于发现关键的树木物种。

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Euphausia superba which belongs to Arthropoda Crustacea, is the key species to the Antarctic ecological system. It is rich in resources and has great potential for the development and use.

南极大磷虾隶属于节肢动物门甲壳纲，是南极生态系统的关键物种，资源丰富，具有巨大的开发和利用潜力。

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there are also some national key protective chemical plant species in the reserve.

该区还有国家重点保护的野生药用植物。

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eight morphological features are figured and a key to the species from china is provided.

首次描述了该属的胚胎学特征，提供了8个形态特征图、寄主植物、地理分布以及中国坚蚜属的分种检索表。

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Rising Asian demand has coincided with low supplies for several key species owing to disease and high feeding costs in the aquaculture industry.

亚洲需求增长之际，由于水产养殖业遭遇瘟疫和饲料成本高企，数个关键物种的供应量偏低。

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A key to species, the citation of literature and specimens, and the distribution of the species are presented.

并列出了分种检索表、种的文献引证、标本引证和地理分布。

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