群體生物學 的英文怎麼說
中文拼音 [qúntǐshēngwùxué]
群體生物學
英文
population biology- 群 : Ⅰ名詞(聚在一起的人或物) crowd; group Ⅱ量詞(用於成群的人或物) group; herd; flock
- 體 : 體構詞成分。
- 生 : Ⅰ動詞1 (生育; 生殖) give birth to; bear 2 (出生) be born 3 (生長) grow 4 (生存; 活) live;...
- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 群體 : 1. [生物學] population; colony2. [社會學] group
- 生物學 : biology
- 生物 : living things; living beings; organisms; bios (pl bioi bioses); biont; thing; life生物材料 biol...
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In this thesis, hordeum brevisubulatum ( trinius ) link, which is one of the fine and important forage grass species in the north of china, is researched on its growth and development, physiological ecology and population ecology
本論文對野大麥( hordeumbrevisubularum ( trinius ) link )這一北方優良牧草在個體生長發育、生理生態以及種群生物學等方面進行了較全面的系統研究。We synthetically discussed intraspecific differentiation and evolution, from four biotic levels of population, individual, cell and gene. intraspecific differentiations in morphology were investigated firstly. the results indicated that there are varied polymorphsim within populations, and obvious polytypism among populations
本文在形態分類的基礎上,根據居群生物學的原理和方法,對淡黃花百合的形態學、細胞學、分子生物學進行了研究,從居群、個體、細胞和基因四個層次綜合探討了該種植物的種內分化與進化。That suggests biology has only scratched the surface of isopod diversity ? and in the grand scheme of things, isopods are a pretty obscure group
這表明現今的生物學僅觸及了等足類動物多樣性問題的表面,並且,從更高的層面來看,等足類動物僅是一個微不足道的群體。Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊間密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法,測定不同生境的格氏栲種群空間格局,分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義,紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切First, the morphology, physiology of seed, biological traits, geographic distribution, ecological and community characteristics, karyotypes, nitrogenase activity of root nodules and chemical constituents of e. mollis were reviewed, respectively
本文對翅果油樹的形態特徵、種子生理生化、生態學特徵、染色體數目、群落生態、生物學特性、固氮生物學以及礦物質和化學成分等方面研究進行了綜述。This paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm
針對我國主要豆科作物大豆和花生的研究成果,並結合本身研究工作內容, ( 1 )總結了與宿主共生的根瘤菌生物學多樣性,包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性; ( 2 )評述了根瘤菌宿主植物共生體雙邊固氮改良,包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇; ( 3 )討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。Abstract : this paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm
文摘:針對我國主要豆科作物大豆和花生的研究成果,並結合本身研究工作內容, ( 1 )總結了與宿主共生的根瘤菌生物學多樣性,包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性; ( 2 )評述了根瘤菌宿主植物共生體雙邊固氮改良,包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇; ( 3 )討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。In this paper two - generation reproduction toxicity of fenvalerate, a - cypermethrin, chlorpyrifos, and triazophos was tested in a 21d period with water flea, daphnia magna, . the toxicity indicator included longevity, body length, days to first brood, days to first pregnancy, number of youth per female, intrinsic rate of natural increase ( r ), and number of broods per female. accordingly, the dose - response relations and relations between the chronic responses and enzyme levels were investigated
為了確定水蚤體內生化指標與慢性毒害效應之間的關系,特別是在低濃度暴露狀態下生化指標改變的生物學意義,以便能更準確預測早期農藥對水蚤種群的潛在危害,本文以浙江省常用殺蟲劑氰戊菊酯、高效氯氰菊酯、三唑磷和毒死蜱進行了大型蚤( d . magna )的急性和慢性毒性試驗(包括子代水蚤的恢復試驗) 。Based on extensive field observation and population sampling in 71 populations of 20 provinces, this dissertation investigates morphology, ecology, cytology, cytogeography and its sequences of this complex. the results show that a. ageratoides polyploid complex might be originated in northeastern china, from which it migrated along three different routes
本研究基於對我國20個省、市、自治區43個地點71個三脈紫菀復合體居群的野外觀察和採集,從形態學、生態學、細胞學、細胞地理學和分子生物學等各方面,對三脈紫菀多倍體復合體進行了綜合性研究。So must use information theory method depict and abundant the genetic diversity index system. in addition to, the introduce of molecule biology technology and the research of nucleotide sequence evolutive give a new method for population genetic, so must do deeply research about the analysis method of dna sequence data = the research main about the follows : there are three parts about the information model of population genetic : one about the shannon information entropy property of equilibrium population and the entropy change in the process of establish equilibrium ; another research is about the diversity measure - ment of genetic variation ; lastly, research the shannon information measurement about the disequilibrium gene variation. the result is : 1 to a definite gene distribution, the genotype entropy reach the maximum at the equilibrium population, the process of population from disequilibrium to equilibrium, the entropy get large and large
此外,分子生物技術的介入及核苷酸序列進化的研究都為群體遺傳學的深入研究提供了新的途徑,但關于dna序列數據的分析方法需要作進一步的研究。本研究主要體現在以下幾個方面: (一)關于群體遺傳學的信息論模型研究,主要分為三部分內容:一是群體平衡的shannon信息熵的性質和群體平衡建立的熵變性質;二是群體遺傳多樣性測度的研究;三是非平衡群體的基因變異測量shannon信息量的方法研究。得到了如下結論: 1 、平衡群體的shannon信息熵最大,群體平衡的過程是熵的增大過程。Of the species, . characters of ecology, reproductive biology, genetic diversity, population genetic structure, endangering mechanisms, and sampling strategy have been studied in view of conservation biology. the results may be summarized as follows : by field investigation, we found that the localities recorded for four specimens of d. versipellis and d. pleiantha had disappeared, and most of the present populations are located in protected subforests. the distributional range of d. versipellis has also been reduced greatly, evidently, the number of present populations has decreased, the resources are reduced sharply, and the species are clearly endangered
從保育生物學的角度,對八角蓮種群生態學和生物學特性、遺傳多樣性水平和遺傳結構、瀕危機制及保育取樣策略進行了研究,結果如下:通過野外調查發現,原標本記載的一些八角蓮和六角蓮種群已難以找到,該類群目前多分佈於自然保護區外圍次生林地帶,分佈范圍明顯縮小,現存群體的規模也明顯減少,資源量貧乏,物種處于瀕危狀況。Computation - oriented analysis on haplotypes and patterns of meiotic recombination hotspots in high eukaryote. applicants should have some backgrounds in population genetics
以計算分析為主進行單倍型分析和高等生物減數分裂重組熱點的規律研究。要求應聘者有一定的群體遺傳學背景知識。Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants
文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式,概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結,這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化(瓶頸效應及種群擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上,多態的等位酶位點上等位基因頻率的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作用; 2 )入侵地區的種群與該物種原產地的種群相比,遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映This equation is suggested as mathematical models of physical problems in many fields, such as filtration, biochemistry and dynamics of biological groups
在滲流理論,生物化學以及生物群體動力學等領域都提出這類方程。The usage of reaction diffusion equations in the dynamics of biological populations mainly reflects that the ecological equations have a diffusion term
反應擴散方程運用到生物群體動力學中主要體現在生態方程有了擴散項。Seed collection should begin when seed on the most top of the spike sloughing, and go on for 3 days. biology population of this plant was research on clone and modular level, mainly discussed how density affect the population size and biomass, as well as the " - 3 / 2 self thinning " and the primary productions under different densities
從無性系構件和個體水平上進行了野大麥種群生物學方面的研究。主要討論了密度對種群數量和生物量的影響,對「 - 3 2 」自疏法則進行了討論,並從草地生產角度比較了不同密度種植區的草地凈第一性生產力。According to the biological characteristic, especially the reproductive habit, the present resources and economical value, measurements of protection and development of the sturgeon fishery were put forward
根據黑龍江鱘科魚類資源現狀、群體結構變動情況及其生物學特點,闡明了保護和發展黑龍江鱘科魚類的必要性並提出了建議。Only those features had been connected together and appearances a stable system of rural society, can we recognize the significance of rural society through the institution culture. china is a vast traditional agriculture country, the amount and spread of villages are extensive compared with other countries, and how to find out effective ways of preservation from thousands of strands and loose ends is a quite difficult problem
同一宗族形成的血緣關系的存在成了村落賴以存在的基礎,而它所投射出的地緣關系使得生活在那裡的人們有了共同的生活和生產基地,血緣性代表著其生物學特徵,地緣的聚居性則表明了其地理學特徵;血緣關系為群體提供了無形的聯帶,地緣關系為群體提供了有形的聯帶。Systematic research across multiple subjects such as biology, chemistry and physics will be carried out, in order to understand the population variation of hab species in coastal china seas, to understand the mechanism of hab damage, to elucidate the ecological and oceanographical mechanism of hab construction, thereby provide scientific foundation for efficient methods for " hab prevention, control and treatment ", and contribute to the global morden theoretical system of hab ecology and oceanography
通過生物學、化學和物理海洋學多學科交叉綜合研究,掌握我國近海赤潮生物種群動態變化規律,了解其危害機理,闡明赤潮高發區赤潮形成的生態學、海洋學機制,為建立"預防、控制和治理赤潮"的有效方法提供科學依據,同時也為發展全球赤潮生態學和海洋學現代理論體系作出貢獻。90 individuals of 6 populations, including possible wild populations and cultivated populations, with some individuals from inside and outside of china were analyzed by inter - simple sequence repeats ( issr ) and random amplified polymorphic dna ( rapd ) markers to determine the genetic diversity and genetic variations of among and within the populations. in addition, the status of ginkgo resource in china has been investigated in this study. 1
本研究對中國的銀杏資源狀況進行了調查,並採用issr和rapd兩種分子標記技術,選取中國的6個銀杏群體(包括可能的野生群體和栽培群體)以及國內外一些零星分佈的銀杏個體,從保護生物學角度對其遺傳多樣性水平和群體遺傳結構進行了研究,獲得以下結果。分享友人