indicator species

Well , you should care because they 're an indicator species .

因为企鹅是一个具有指示功能的物种。

Important Indicator Species ( Trichoptera grubs ) in Water Quality Monitoring on Biological Method

水质监测的重要指示生物&毛翅目幼虫

Indicator species of the seven major plant communities were determined by examining the indicator value .

根据指示值确定7个主要群落的指示种。

The study on pollen rain of characteristic indicator species has important significance for reconstructing paleo_ecological environment .

特征指示种花粉雨研究，对古生态环境重建也具有重要的意义。

Ecological assessment of the Yangtze River eco-system with benthic invertebrate as indicator species

以底栖动物为指示物种对长江流域水生态进行评价

The diversity , dominant species and the best indicator species of each community varied seasonally . 3 .

群落多样性、优势种类及指示种随季节变化而呈现差异性。

Identification of Indicator Species of Paralytic Shellfish Poison

麻痹性贝类毒素监测指示贝种的筛选研究

The scores of ordination were then used for a two way indicator species analysis ( TWINSPAN ) to the species .

然后利用排序得分对物种进行二元指示种（TWINSPAN）分类。

The effects of different land-use scenarios on habitat suitability of indicator species in the Liaohe River Delta wetlands

辽河三角洲滨海湿地景观规划各预案对指示物种生境适宜性的影响

Through the investigation , 35 species of Rotifera were found , of which 18 species were pollution indicator species .

在两个夏季调查中，共发现轮虫35种，其中污染指示轮虫18种。

It said that frogs are an " indicator species " . That frogs will die first because of the sensitivity .

还说青蛙是一个“物种指示器”，由于对环境敏感，这个物种会先遭灭顶之灾。

The vegetation individuals and attributes in Loess Plateau were classified by GIS technology and TWINSPAN ( two-way indicator species analysis ) .

采用GIS技术与数量生态分析技术（TWINSPAN）相结合的方法，对黄土高原植被进行数量区划。

The microalgae are the key primary producer of Antarctic biological chain , and the Antarctic ice algae are good indicator species for the ecological environment .

南极生物链中的关键初级生产力是微藻，南极冰藻是极好的生态指示种。

Egret is a kind of widely distributed wetland water bird . Due to its high demands on the environment , it is an important indicator species of environmental quality .

白鹭是一种分布广泛的湿地水鸟，由于其对环境的要求较高，是环境质量的重要指示物种。

Increasingly rare because of fishing , pollution , and loss of habitat due to human activity , these so-called megafishes can be indicator species of aquatic ecoystems .

由于过度捕捞、环境污染以及人类活动导致的栖息地减少，巨型淡水鱼的数量不断萎缩，它们的命运成为淡水生态系统物种的一个写照。

62 samples collected in Midpiece of Zhongtiao Mountains were classified into 16 associations by Two-way Indicator Species Analysis ( TWINSPAN ) .

采用样方法取样，依据重要值指标运用双向指示种分析（TWINSPAN）法，将山西中条山中段植被群系分成16个群丛。

Tree Sparrow , Magpie , Great Spotted Woodpecker , Ring Dove and Hoopoe can be applied as indicator species to estimate the quality of the urban environment .

树麻雀、喜鹊、大斑啄木鸟、灰斑鸠、戴胜5种鸟可作为城市环境的指示物种。

Based on 75 recorded moss species and their coverage , Two-way Indicator Species Analysis ( TWINSPAN ) and Detrended Correspondence Analysis ( DCA ) were used to analyze their distribution patterns .

基于75种记录的藓类植物及其盖度数据，应用双向指示种分析法（TWINSPAN）和除趋势对应分析（DCA）分析其分布格局。

The main results and conclusions of the study were as follows : ( 1 ) The study investigated the tendencies of major climatic factors of typical regions and different indicator species of the grasslands in the loess plateau .

主要研究结论如下：（1）研究了黄土高原典型区域主要气候因子与不同植被地带指示种的变化趋势。

Investigate vegetation and soil by sampling method and Line transects from June to August between 2005 and 2009 , and come to understand status and recovery of vegetation in Yanchi county by using TWINSPAN two-way indicator species classification and Plant diversity calculation .

采用样方法和样线法进行植被和土壤调查，在2005年到2009年之间，每年的6-8月进行调查，采用TWINSPAN双向指示种分类法和植物多样性计算了解盐池县的植被现状及其恢复情况。

Ecosystem health assessment mainly has two methods : one is indicator species assessment , and the other is structure and function index assessment which includes single index assessment , complex index assessment , and index system assessment which includes natural index system assessment and social-economic-natural index system assessment .

结构功能指标评价包括单指标评价、复合指标评价和指标体系评价.指标体系评价中又包括自然指标体系评价、社会-经济-自然复合生态系统指标体系评价。

Spatial diversity index was cited to describe the wild life habitat pattern quantitatively . And the habitat pattern change of wild animals and red-crowned cranes ( Grus japonensis ), as indicator species , between 1988 and 1998 was analyzed .

引用空间多样性指数（Sd）对本区野生动物生境格局和指示物种丹顶鹤的生境格局进行了定量描述，并分析了其十年间的生境格局变化。

There were 74 fish species in these waters , belonging to 8 orders , 16 families , most were indicator species in North China Region , Ningxia-Mongolia Region and West China Region . Also , there were some representative species in East China and South China .

共见到鱼类74种，隶属8目16科，其中许多是北方区、宁蒙区和华西区鱼类的指示种，也有华东区和华南区的代表种。

Great Gerbil ( Rhombomys opimus ) is a typical desert rodent species in the desert and semi-desert habitats in central Asia , so it is regarded as one of the indicator species of Palaearctic desert and semi-desert .

大沙鼠（Rhombomysopimus）是中亚地区典型的荒漠啮齿动物，栖息于荒漠、半荒漠中，是古北区荒漠、半荒漠景观中生物多样性的指示物种之一。

Based on the survey of community plots , a quantitative analysis of endangered Acanthopanax senticosus communities in Dongling Mountain was performed with two way indicator species analysis ( TWINSPAN ), detrended correspondence analysis ( DCA ) and canonical correspondence analysis ( CCA ) . The communities of A.

在样方调查的基础上，分别采用双向指示种分类法（TWINSPAN）、除趋势对应分析法（DCA）和典范对应分析（CCA）对东灵山地区濒危植物刺五加的生存群落进行数量分析。

Water quality was evaluated with three biological standards ( Q B / T , Shannon & Weiner diversity index and indicator organisms of dominant species ) .

尝试用三个生物学指标即：Q值、生物多样性指数和优势种指示生物评价内河污染状况。

( b ) plant community degraded as a major form of structural decline , its species compositional change have hysteresis effect , and community structure may be more sensitive indicator to disturbance than species composition .

群落退化主要表现为结构的退化，而物种组成变化相对滞后，表明群落结构较物种组成对干扰的响应更敏感，因而可作为干扰的指示者。