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aggregation pattern
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  聚集分布
     The results showed that the distribution of the studied insect belonged to aggregation pattern and the basic component of distribution was individual colony.
     结果表明,出蛰若虫在碧桃上呈聚集分布,分布以个体群形式存在。
短句来源
     when the incidence was be-low 10%, the distribution of diseased plants was of aggregation pattern, which in general fit-ted negative binomial distribution, and the meancrowding degree decreased with the incidenceincreasing.
     当发病率小于10%时,病株呈聚集分布,一般符合负二项式分布模型,并且在此范围内,平均拥挤度随发病率增高而减小。
短句来源
     This paper deals with the spatial distribution pattern of the egg-masses of Ostrinia furncalis ( Giienee) . The egg-masses in the late maize field are the aggregation pattern. The data from seve field investigations were analyzed by dispersal rate (S~2 x~(1/2)) , mean aggregation ( λ) , index of mean crowding ((?)
     通过7次田间调查,结果用扩散系数(S~2/x)、聚集均数(λ)、平均拥挤度(X)、负二项分布参数(K)、Iwao方程和Taylor指数的分析,晚玉米上玉米螟卵块为聚集分布
短句来源
     The spatial distribution pattern of emerald ash borer,Agrilus planipennis Fairmaire was studied in Dagang Forest Park,Tianjing during summer in 2004.Result suggested that the beetle in ash plantation are in negative binomial distribution,and six indices of spatial distribution revealed that it is of aggregation pattern.
     2004年4月~9月,在天津市大港区官港森林公园对花曲柳窄吉丁Agrilus planipennis的空间分布和垂直分布进行了调查研究,应用扩散系数(C)等6种指数法分析测定,确定了该虫在林地中的空间分布呈聚集分布,分布的基本成分是个体群。
短句来源
     The result indicated that the diseased plants was in the aggregation pattern, based on this distribution pattern ,the density of the diseased plants were investigated and the sampling method of parallel lines、single diagonal lines chequered and “Z” type were also compared.
     结果表明 ,稻粒黑粉病病株在稻田的空间分布型呈聚集分布。 在此分布型的基础上 ,通过调查病株密度 ,比较了平行线、单对角线、棋盘式及“Z”字型抽样法 ,最后肯定平行线抽样法最好。
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  聚集模式
     Cellular Automata Approach to Biological Pattern Formation(I): the Aggregation Pattern in Dictyostelium discoideum
     生物模式的元胞自动机模型(I):盘基网柄菌的聚集模式
短句来源
     Afterwards, some suggestions about how to develop the industry colony and how to choose its patterns are given by comparing and analyzing the world's and our country's industry aggregation pattern.
     之后,对世界产业聚集模式进行简明扼要地比较分析,从而对我国产业集群的发展和模式选择提供可以借鉴的经验。
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  “aggregation pattern”译为未确定词的双语例句
     puluinum Ewing larvae population was a loose individual group (α>0 or α′>0) in which individual group was aggregation pattern (β>1 or β′>1), and it was subordinate to negative binomial distribution witha common Kc(=0.3015).
     >1,β>1,β′>1),且隶属于具有一个公共K_c(=0.3015)值的负二项分布(α>0且β>1);
短句来源
     Equation that can best describe this schedule was derived as y = - 4.1224 + 0.2095t-(5.0752E-05)t3.Study on spatial distribution of Xylotrechus rusticus Linnaeus was made, result suggested that larvae in polar plantation belong to negative binomial distribution, and six indices of aggregation revealed that it's of aggregation pattern.
     出孔进度最适数学模型为y=-4.1224+0.2095t-(5.0752E-5)t~3。 对青杨脊虎天牛的空间分布型进行了研究,概率分布型研究结果表明该天牛幼虫空间分布属负二项分布;
短句来源
     the largest population aggregation pattern haven’t change distinctly with the aggregation area of 1.28m2, but small clumping patterns appeared with increasing of cutting intensities.
     种群的最大聚集规模未随刈割干扰强度增加发生明显变化,聚集面积维持在1.28m2,但连续的刈割使羊草种群聚集的小斑块数目增多。
短句来源
     The testing with several indexes of aggregation indicated that the distribution obeys aggregiaton battern. Iwao's regression method and Taylor's method of power function are good methods for detecting the aggregation pattern. The results showed that the spatial distribution of lavare obeys aggregation pattern too.
     Iwao的回归和Taylor幂法则方法也是检验聚集型分布的好方法,检验的结果都说明白杨透翅蛾幼虫空间分布是聚集型的。
短句来源
     are good methods for detecting the aggregation pattern.
     Iwao回归与Taylor幂法则也是确定聚集型分布的好方法,结果都说明是聚集型的。
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  aggregation pattern
Anti-CD62P did not modified expression of CD11b neither change the heterotypic aggregation pattern.
      
In the nucleus, the main differential features were the the three-dimensional view of the nuclear envelope, the distribution of nuclear pores and the aggregation pattern of chromatin, visualized as clusters of nuclear particles in cross-fractures.
      
The overall aggregation pattern was constituted by two different structures.
      
granarius, andBlattisocius keegani Fox-Androlaelaps casalis Berlese had a distinct aggregation pattern in each oat cultivar.
      
Aggregation pattern of individuals and the outcomes of competition within and between species: Differential equation models
      
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Spatial patterns for egg-masses, smali larvae and cocoons of the pine caterpillar Dendroli-nus tabulaeformis are analyzed by means of Iwao's method of regression of mean crowding (m) on mean density (m) from data obtained in Beijing. All indices indicate that the egg-masses, small larvae and cocoons are of the aggregation pattern. The basie components of the egg-masses are individuals which fit to negative binomial series with a coramon k(k=-1.0107). The hasic cornponents of smali larvae and cocoons occur...

Spatial patterns for egg-masses, smali larvae and cocoons of the pine caterpillar Dendroli-nus tabulaeformis are analyzed by means of Iwao's method of regression of mean crowding (m) on mean density (m) from data obtained in Beijing. All indices indicate that the egg-masses, small larvae and cocoons are of the aggregation pattern. The basie components of the egg-masses are individuals which fit to negative binomial series with a coramon k(k=-1.0107). The hasic cornponents of smali larvae and cocoons occur as loose double clumps, in which the mean size of samll colonies of small larvae were 19 to 22 square meters and that of largc clumps were 47 to 66 square meters and thc mean size of smali colonies of cocoons were 19 to 28 square mciers and that of large clumps were 63 to 99 square meters. The distribuition of the chunps was aggregative and that of the colonies within largc clumps was regular. The intracolonial distribution was random. Several simpling methods have been compared by the averaged crrors. The results show that for latvar in carlies instars with low density the single diagonal method is the best, for cocoons with mediure density and the egg-masses with medium and low densities the double diagonal method is the best.

采用Iwao(1968—1977)的(?)对m的回归方法以测定油松毛虫Dendrolimus tabulaeformis Tsai et Liu越冬幼虫、茧、卵块的空间分布型,并用不同的抽样方法比较了抽样精确度。油松毛虫越冬幼虫,茧、卵块在油松人工林内都呈聚集分布。幼虫和茧分布的基本成分是双重个体群。卵块分布的基本成分是卵块个体,其遵从有一公共K值的负二项分布。抽样方法:当越冬幼虫在低密度情况下以单对角线法最佳,茧在中密度情况下,卵块在中低密度条件下均以双对角线法为最佳。

Micro-spiders are very rich in the natural resources in rice fields.Accordingto collection and identification of micro-spiders speciment in Xingyin county,there are four species of spiders representing four genus.They make up 41.82%of the total number of the spiders in early rice fields.The dominant species isOedothorax insecticeps that make up 73% of total number of the microspiders inthe fields.It has been noted that the micro-spiders species are quite same throughoutthe seasons,but relative quantity of micro-spiders...

Micro-spiders are very rich in the natural resources in rice fields.Accordingto collection and identification of micro-spiders speciment in Xingyin county,there are four species of spiders representing four genus.They make up 41.82%of the total number of the spiders in early rice fields.The dominant species isOedothorax insecticeps that make up 73% of total number of the microspiders inthe fields.It has been noted that the micro-spiders species are quite same throughoutthe seasons,but relative quantity of micro-spiders species changes from time totime in different niche.The dominant species is Oedothorax insecticeps in ricefields and bank,but it is Erigone graminicolum on the citrus and forests.The present paper shows the changing-law in the population density of micro-spiders in the fields.There were three density fluctuation of total number ofmicro-spiders throughout the year in the fields,with rising occurred in March,July,and November,falling occurred in May-Summer harvesting and planting,and August-Autumn harvesting and sowing.Micro-spiders are a important naturalenemies occupying 38.46% of the total number of all predatous in early ricefields,but there are not important occupying only 6.15% of the total number ofall predatous in late rice fields.Horizontal distribution of micro-spiders is well-distributed in rice fields,butventical distribution is of an aggregation pattern,which distribution between1-16cm of rice.The functional response of Oedothorax insecticeps to prey increased with theincrease of prey density,and decreased with the increase of its own density.The ability of drought-enduring of micro-spiders is stronger than hunger-endur-ing ability,and hunger-enduring of Erigone greminicolum is stronger than thatof Oedothorax inseticeps.

本文记述了稻田微蛛种群的周年性变动状况。根据我们在湘阴县调查:稻田微蛛有四属四种,优势种为食虫瘤胸蛛,其发生量占微蛛总量的73%。稻田微蛛种群数量的变化有一定规律性,全年有三个起伏,3、7与11月上升,5月的夏收夏种与8月的秋收秋种时期下降。早稻田间发生量占总蛛量的41.82%,是主要捕食性天敌,晚稻期间发生量少,作用较小。各生境微蛛种群组合基本相似,但各种群大小及优势种不同。微蛛在稻田的水平与垂直分布,耐饥与耐旱能力亦作了考察与测定。

The spatial distribution of plants,lesions,bleached and sterile heads,in- fected by Piricularia oryzae,are of aggregation pattern.The relations between the percentage of infected hole plants(x)and of infected plants(y)may be expressed by y-0.5632e~(0.0451x).The relations between the percentage of infected plants(x)and of infected leaves(y)can be described by y-4.0278e~(0.0280x), and between the percentage of infected leaves(x)and disease index(y)by y=0.2152x~(1.2198).Tayler's method and Iwao's m-m regression...

The spatial distribution of plants,lesions,bleached and sterile heads,in- fected by Piricularia oryzae,are of aggregation pattern.The relations between the percentage of infected hole plants(x)and of infected plants(y)may be expressed by y-0.5632e~(0.0451x).The relations between the percentage of infected plants(x)and of infected leaves(y)can be described by y-4.0278e~(0.0280x), and between the percentage of infected leaves(x)and disease index(y)by y=0.2152x~(1.2198).Tayler's method and Iwao's m-m regression analysis are Vary convenient to test the spatial distribution pattern of plant disease.

稻瘟病的叶瘟病株、病斑和穗颈瘟白穗的空间分布型都是聚集的。Taylor幂法则和 Jwao 集聚格局分析比其它扩散型指标,更能够说明病害的生态特征。稻瘟病叶瘟的病丛率(x)与病株率(y)的关系为 y=0.5632e~(0.0451x),穗颈瘟白穗丛率(x)和白穗株率(y)的关系为 y=0.8957e~(0.03786x),都呈极显著相关,有利于调查方法的简化。负二项理论抽样,将原公式简化,其抽样数可依 S~2=a(?)~b 代替 k 值作用,它随平均数而变化,计算较方便。

 
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