种

There is not significant effect on pests\' vertical distribution of different cultivation methods,and the plant species on the distribution is similar.1.3 The studying of the natural enemies sub community structure The kinds of sub communities of natural enemies are 6 orders.15 families.22 species,which predatory insects 4 orders.7 families.10 species,araneae 9 families. 11 specie,and a parasitic insect species.

不同的栽培方式对害虫的垂直分布影响不明显，各物种在植株上分布比例相似。1.3天敌亚群落结构研究天敌亚群落共有天敌6目、15科、22种，其中捕食性昆虫4目、7科、10种，蜘蛛目9科、11种，寄生性昆虫1种。

The parasitic rates of 10 of the 76 isolates were over 50%. As for Paecilomyces lilacinus, Verticillium chlamydosporium and V.lamellicola, the parasitism to eggs had no obvious difference among M.incognita, M. arenaria and M.javanica, which indicated that these 3 fungal species may be effective agents for control of root-knot nematodes.

通过测定，76个菌株中有10个菌株对南方根结线虫卵的寄生率超过50%，种间及菌株间对卵的寄生能力存在很大差异；Paecilomyces lilacinus， Verticillium chlamydosporium及V.lamellicola对Meloidogyne incognita， M.arenaria和M.javanica卵的寄生能力进行比较，在3种线虫之间没有明显差异，说明这3种真菌对这3种根结线虫有进行防治的可能性。

Investigation was carried on tweenty-four sample stands of four districts in Nanning City, including (1) college area: the Subtropical Conservative Rainforest, the omni-tree Woods, the Pinus massoniana Woods in Guangxi Ethnic College, the TaoLi Garden, the Centre Garden, the Nurture Garden, the sod Garden, the Eucalptus woods, the Osmanthus fragrans Woods and the Livistona chinensis green Belt in Guangxi University;(2) residence: the Swiss Villa"s two greening sample standsand the Wenhua Villa"s three greening sample stands;(3) commercial streets: theXingming Road ,whose prime street tree is Dracontomelon duperreanum , the Yuanhu Road, whose prime street tree is Saraca chinensis Merr.et Chum, the Xingzhu Road, whose prime street tree is Artocarpus nitidus Tree, subsp.

住宅区：文华园的3个样地和瑞士花园的2个样地。主要交通干道：大学路的3个样地和民族大道的2个样地。商业区：以人面子为主要街道树的新民路，以红桂木为主要行道树的新竹路，以中国无忧花为主要行道树的圆湖路。调查结果表明：在南宁市四个功能区的24个绿化样地，主要的绿化乔木有 45种，前 10种依次是：人面子、假摈梆、垂叶榕、桂花、扁桃、蒲葵、阴香、马尾松、芒果和中国无忧花，主要的绿化灌木有24种，前8种依次是九里香、尖叶木犀揽、黄叶假连翘、扶桑、花叶朱蕉、紫蒲、短穗鱼尾葵和大花美人蕉，这些植物基本上代表了本市绿化植物的主体。

Total 57 taxa belonged to 36 genus with 46 taxa of Bacillariophyta, 11 taxa of Pyrrophyta and 22 species of red tide organism.

共鉴定出浮游植物36属57种（硅藻46种，甲藻11种），其中赤潮类生物22种。

Multinomial logistic regression models proided the odds of a gien beerage pattern for each food pattern; we then compared the probability of a gien beerage pattern for each food pattern.

复杂的递减模式提供每种食物的饮料结构的几率；然后我们对比每种食物指定的饮料结构的可能性。6种饮料6种食物结构出现。

The RAPD results illustrate that the phylogenetic relationship betweenBothriocephalid tapeworm parasitic in Grass carpCtenopharyngodon idellus(C.et V.and Common carp(Cyprinus carpio L.)from different regions ofChina is infraspecific with noticeable variance bwtween them.Thephylogenetic trees based on the 3 sequences analyses above are constructed,which show the following relationships:Bothriocephalid tapeworms fromGrass carp,Common carp and Luciobrama are found to be monophyletic,and are very close to Bothriocephalus opsariichthydis,but are divergent toanother monophyletic group comprising Bothriocephalid tapeworms fromZacco,Hemiculter and Leuciscus.On the basis of phylogenetic reconstruction,autapomorphic species conceptis used in species delimitation suitablefor determining four species in the present study:B.acheilognathi,B.opsariichthydis,and two other bothriocephalids parasitic respectively inHemiculter and Leuciscus.It is also deduced that the differentiation time ofBothriocephalid tapeworms parasitic in cyprinids is earlier than that of theirhosts,and the most recent specification happened about one million yearsago.Key words Bothriocephalid tapeworm Molecular Systematics

具体成果有：通过RAPD分析探明了我国不同地理分布的草、鲤鱼头槽绦虫的亲缘关系属于种下水平，并存在较高变异；通过基因合并分析重建头槽绦虫的系统发育关系，表明草鱼、鲤鱼及鯮鱼头槽绦虫是单系群，它们与马口鱼头槽绦虫亲缘关系较近，而与〓条、宽鳍鱲及雅罗鱼头槽绦虫构成的另一单系群亲缘关系较远；在此基础上，提出符合头槽绦虫种的界定的独征物种概念，据此确定鲤科鱼类寄生头槽绦虫的四个种：鱊头槽绦虫，马口鱼头槽绦虫，以及另两种分别寄生于〓条和雅罗鱼的头槽绦虫：根据上述研究推断鲤科鱼类寄生头槽绦虫的分化年代早于其宿主，最近的一次物种形成距今约一百万年左右。

In model plant Arabidopsis thaliana, also from Brassicaceae, the TRANSPARENT TESTA 12 (TT12, AtTT12) gene is seed coat-specific and encodes a vacuolar flavonoid/H+ antiporter, transporting cytoplasm-synthesized glycosylated flavan-3-ols to the vacuoles for further polymerization into seed coat pigments.

同属十字花科的模式植物拟南芥中，种皮特异表达的TT12（透明种皮12，AtTT12）基因编码一种液泡型类黄酮/H+-逆向转运蛋白，将胞浆内合成的糖苷化的黄烷-3-醇转运到液泡中，供进一步聚合形成种皮色素。

The phylogenetic relationship of raptors and nighthawks were estimated by mitochondrial rRNA gene sequences in this study by comparing the partial basepair fragments of 12S rRNA and 16S rRNA genes among 5 species of Falcoiformes, 3 species of Strigiformes and 1 species of Caprimulgiformes sequenced in this experement, together with the homologous segments of mtDNA in other 17 species of birds downloaded from GenBank.

本文测定5种隼形目鸟类、3种鸮形目鸟类和1种夜鹰目鸟类的部分线粒体12S rRNA基因和16S rRNA基因，结合从GenBank下载的17种鸟类同源基因进行系统进化研究。

60 Species of zooplankton were identified, among which there were Rotifera 34 species, Copepoda 13 species, Cladocera 6 species, among which Rotifera has an dominance for 55.02%, especially Brachionus sp.

浮游动物共鉴定到60种，其中轮虫有34种，桡足类13种，枝角类有6种。

Both of amount of 54 ind/L and 95 ind/L were found from cladocera of 8 species as well as Copepoda of 6 species and their proportion of 28.57% and 21.43% were recorded.

浮游动物28个种属，其中轮虫14个种属，数量137 ind/L，占50%；枝角类8个种属，数量54 ind/L，占28.57%；桡足类6个种属，数量95 ind/L，占21.43%。

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。