生境类群

Biotope types had impacts on birds distribution,and several bird biotope-groups were observed.

不同生境类型中的鸟类组成差异明显，构成多种鸟类生境类群。

The carabid beetle is one of the most important groups of Coleoptera, almost distributed over all of the terricolous system.

步甲是鞘翅目的重要类群之一，几乎分布于所有陆生生境。

First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先，从大庆地区主要的风险源中遴选出四种主要的风险源，即洪涝、干旱、沙尘天气和石油污染等；依据不同生物类群对生境的要求，将本研究区域的19种景观生态类型归纳为7种生态系统：即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇；对四种主要风险源的进行分析，包括确定风险概率，划定空间分布，对风险受体的作用强度分析等；在进行暴露和危害分析中，本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位，以脆弱度指数来体现不同生境的易损性，从而计算出各受体生态系统的生态损失度指数；由于各主要风险物质对风险受体的作用强度是不同的，对形成区域性生态风险的作用大小也有差异，因此本文采用层次分析法对主要生态风险物质进行综合评价，并把判断矩阵排序权值的合理计算问题归为—非线性化问题，并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析；进行风险表征，即综合前面两个阶段的信息，对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述，并划分出五级生态风险区；最后，根据划分的五级生态风险区的特征，分别提出针对各生态风险区的生态风险管理对策。

Results show that in the region, Nematoda was the predominant group, and Acarina, Collembola, Tardigrada and Harpacticoida were common groups. Soil faunae under different vegetations at the same location displayed certain similarity and difference as well.

研究表明，整个地区不同生境中土壤动物的优势类群为线虫；常见类群有瞒、弹尾目、线蚓、熊虫和猛水蚤目等；同一地点不同植被下，土壤动物类群之间存在着一定的相似性和差异。

Biological Activated Carbon Filter could provide ideal habitats for invertebrates, but invertebrates may lead to aesthetic problems and adverse health effects of drinking water. This paper studied the invertebrates in biological activated carbon filters in a water plant of the south of China during Sep. 2006 to Sep. 2007. The results implied that BAC filters were colonized by invertebrates, in which 23 species of invertebrates were found, the dominating organism group was the rotifer, and others included Copepoda, Cladocera, Oligochaeta, Nauplii and Nematoda.

生物活性炭(Biological activated carbon， BAC)滤池能够为无脊椎动物提供理想的生境，但无脊椎动物可能给饮用水带来负面的健康效果和感观问题。2006年9月～2007年9月，对南方某水厂BAC滤池无脊椎动物滋生状况进行了为期13个月的调查研究，共发现无脊椎动物23种，优势类群为轮虫，其他类群还有桡足类、枝角类、寡毛类、无节幼体、线虫等。

The chemical composition of a plant is closely correlated to its taxon and habitat.

植物化学成分与植物类群和所处生境关系密切。

These algorithms, indicative of ecological adaptations for habitat use, combined with those adjusted with craniodental measurements for estimating the dietary preferences of bovid species, have the potential for characterizing the paleoautecology of extinct taxa and may be used in paleoenvironmental reconstruction.

这些表征生境利用的生态适应函数与那些用颅齿部性状建立、用于推测牛科动物食物选择的函数结合，具有刻画已灭绝的分类类群的古个体生态学和重建古环境的潜力。

Gloydius which belong to Viperidae Crotalinae is a colony of advanced viper.Their live environments are diversiform: jokuls, altiplanos, hills and plains. Gloydius isa group has highly differentiation and in a phase of radialization evolution, even thedifferent colonies of same species have diversity in morphologic and gene level. Chinahas abundant Gloydius, but the genetic diversity and their distribution pattern are littleresearched.

亚洲蝮属隶属于蝰科、蝮亚科，是一类高等的毒蛇，其分布范围广泛且生境差异较大，从雪山、高原、丘陵至平原，是一个高度分化、适应多种环境条件的类群，且尚处于辐射进化阶段，甚至同一物种的不同地理种群已表现出明显的形态和基因水平的差异。

Through the comparative analysis of the arthropod community between intercropping system and the three control systems～the weeding jujube yard system, not weeding jujube yard system and the system of farmland, it is showed that the intercropping system have a more richer neutral arthropod groups. Compared to Weeding jujube yard system and system of farmland the intercropping system have more advantages in natural enemies groups and more disadvantaged phytophagy groups. And the intercropping system can rebuild the arthropod community more faster than the other systems after the system was seriously disturbed, so it is than compared to other three systems the intercropping system have more proper structure and more stronger regulation ability and also more stronger ability to control pest.

对枣粮间作系统和三种对照系统，即除草枣园系统、未除草枣园系统和农田系统的节肢动物群落进行对比分析发现枣粮间作系统具有更为丰富的中性节肢动物类群，比起除草枣园系统和农田系统有更优势的天敌类群和更劣势的植食性类群，且在遭受生境的巨大变化后新生境重新形成时枣粮间作系统的各亚系统能更迅速的形成节肢动物群落和各种功能类群，说明枣粮间作系统比三种对照系统的节肢动物群落有着更合理的结构、更强的调控能力和更强的控害能力。

The natural enemies group, neutral arthropod group and phytophagy arthropod group of the two sub-systems were respectively analyzed and have found that all types of arthropods of the two sub-systems can be divided into three different types of groups. The first group is which living in two habitats and the species current is few impacted by the changes of habitats; The second group is which can living in two habitats in turn ,but can transfer to another in the time the habitats was deeply disturbed ;The third one can only living in one habitats and can make the another habitats as a temporary habitats.

两个亚系统的天敌类群、中性节肢动物类群、植食性节肢动物类群分别进行分析发现两个亚系统的各类群节肢动物均可划分为三种不同类型，第一种为栖居于两种生境且物种流受生境变化影响较小类群；第二种为可依次栖居于两个不同生境，生境的变化对其物种流产生较大影响；第三种为栖居于某一单一生境，但可将另一系统作为某一虫态的临时栖境。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。