相對種群大小 的英文怎麼說

中文拼音 [xiāngduìzhǒngqúndàxiǎo]
相對種群大小 英文
relative population size
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 種 : 種名詞（姓氏） a surname
  • 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
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. 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
  2. That is to say, when a calamity happen, the local government suppress the truth in public or stealthily for some reason, they either play down its truth or do some subreption in order to make common people in dark, which will result in rumor and scandal being spread about

    即災難事故發生后，當地政府由於種種原因或明或暗地壓制報道，或者是大事化小、小事化了，或者歪曲事實真相糊弄老百姓，造成當地群眾對有關親身利益的身邊災情含糊不清，甚至一無所知，從而導致流言蜚語盛行。
  3. Entering the new historical times and developing stages of all - out efforts to construct a well - to - do society in our country, in the face of the negative effect produced toward our country ' s advanced culture development by swift and violently developing of economic globalization and information networking of the world, in the face of the quickening of market economy paces of reform and opening - up once in our country cause social life diversification and interests subject pluralism which inevitably takes shadow on the agitation and infiltration of different mind and culture, in the face of the spiritual culture need which the people increase day by day, in the face of the influence owing to western capitalist class and westernization and strategy of splitting up that hostile force adopt of decadent ideology, the advanced ideological ethical culture in contemporary china is not only confronted with historic opportunities and advantageous condition to accelerate its development, but also faced with austere challenge and trial

    在我國進入全面建設小康社會的新的歷史時期和發展階段，面對世界經濟全球化和信息網路化的迅猛發展對我國先進文化發展所產生的影響，面對我國改革開放和市場經濟步伐的加快導致社會生活多樣化和利益主體多元化所必然引起的各種思想文化的相互激蕩、相互滲透，面對人民群眾日益增長的精神文化需要，面對西方資產階級腐朽思想的侵蝕和敵對勢力所採取的「西化」 、 「分化」的戰略圖謀，當代中國先進思想道德文化既面臨加快發展的歷史機遇和有利條件，也面臨十分嚴峻的挑戰和考驗。大力發展先進思想道德文化，對于促進中國先進文化的發展，為改革開放和現代化建設提供正確的指導思想和強大的精神動力，具有重要的戰略意義。
  4. Longgang nature reserve plays an important role in preserving two langur species of both white - headed langur and francois langur. interview and field survey methods were used to survey the distribution and population size of these two langurs in this natural reserve from december 2001 to january 2002. the result indicated that the reserve has 8 groups of white - headed langur with 68 individuals in longrui and 10 groups of francois langur with 75 individuals in longgang. the distribution area and population size of both of the two langurs in this reserve have greatly declined in the past decades. they are seriously threatened and have high risk of disappearance from this reserve if no effective measures are to be taken at once

    為了確定弄崗自然保護區內白頭葉猴的種群數量，彌補黑葉猴種群數量的空白，掌握此保護區葉猴的生存現狀，採用訪問法和實地數量統計法相結合的方法對弄崗自然保護區的弄崗、隴瑞和弄呼3個部分進行深入的調查研究.調查結果表明，在隴瑞片范圍內，共有8群白頭葉猴，種群大小在68隻左右，和20世紀80年代末的244隻相比，數量下降相當驚人;在弄崗片內，共記錄到黑葉猴群10群，最大的種群為11隻個體，最小的種群是4隻個體，共計約有75隻黑葉猴（絕對數量統計） ;弄呼的黑葉猴種群已經于上個世紀的晚期消失.造成目前狀況的因素主要是過度狩獵和其他形式的過度干擾.弄崗自然保護區的葉猴種群數量已經接近可持續繁殖種群的最低水平，如不採取有效的保護措施，這個種群將很可能在短期內消失
  5. Abstract : the sample breakdown point of a test is defined as the smallest proportion of arbitrary outlier in the sample that reverses the test decision. in this paper, wegive the sample breakdown point of a test for maximum likelihood estimate of exponential distribution parameter and analyze the asymptotically normal characteristic of the sample breakdown point

    文摘:如何量化一種統計方法對異常值的不敏感性一直是穩健統計研究的一個重要課題.檢驗的樣本崩潰點是樣本中能逆轉判決的離群值的最小比例.在研究相關文獻的基礎上，計算出指數分佈參數極大似然估計檢驗的樣本崩潰點，並分析了樣本崩潰點的漸近正態性，為量化統計方法的穩健性提供了一種新的途徑
  6. By using of the richness, diversity and evenness indices, combined with twinspan, dca, dcca, multi - factors regression, correlation analysis techniques and so on, species diversity and diversification mechanism were studied. the communities were classified into eight types by twinspan. the first axis of dca indicated basically the diversification of soil water, while the second axis indicated basically the disturbance degree by people. the correlations between n, organic matter, elevation and the first axis are negative association, and the others are positive

    通過豐富度指數、物種多樣性指數和均勻度指數，結合twinspan 、 dca 、 dcca排序，多元回歸和相關分析，研究了物種多樣性及其變化機制，把植物群落分為8個群落類型；物種多樣性指數的dcca第一軸基本上反映了土壤水分的變化，第二軸基本上反映了人類對群落的干擾程度，物種多樣性指數隨土壤水分的增加而增大，隨人類的干擾程度的增加而減小。
  7. According to measured data, testis sizes from animals captured in september 2000 were different remarkably from that in april and july 2001, and not differences among their age groups, which was indicated that l. lagurus in september 2000 did not have reproductive abilities. by use the same method, we have observed that l. lagurus in april 2001 and groups from - age and - age ( old ) in july 2001 have reproductive abilities. in addition, the reproductive ability from the - age group in july 2001 was intermediated between the groups in september 2000, - age group in april and - age group in july 2001

    我們對不同時間參與繁殖的雄鼠睪丸大小的測定結果表明， 2000年9月雄鼠睪丸大小與2001年4月和7月的有顯著性差異，表明2000年9月草原兔尾鼠雄鼠進入繁殖休止期； 2001年4月種群中齡和齡雄鼠睪丸大小無顯著性差異，與2001年7月的相比有顯著性差異，但與2001年7月種群的齡鼠和齡鼠的相比無顯著性差異，表明2001年4月和2001年7月種群的齡和齡草原兔尾鼠雄鼠具繁殖能力； 2001年7月的齡雄鼠睪丸大小與2000年9月的有顯著性差異，表明該時期齡雄鼠的繁殖力介於2000年9月種群和2001年4月和7月種群的齡鼠和齡鼠之間。
  8. If parvo virus is confirmed, there is little officials can do besides monitor the population and hope exposed wolves build a natural immunity to the disease, he said. the state ' s wolf program leader also suspects parvo virus is behind the deaths

    美國懷俄明州狼類種群計劃負責人卡羅林西姆對此也有相同的猜測，她認為細小病毒正是導致黃石國家公園內幼狼大量死亡的原因。
  9. The diversity indices varied greatly in different strata at the earlier stages of succession and became more similar to each other at later stages of succession and the communities tended to be relatively stable

    演替前期，各層物種多樣性指數分異較大，演替後期，各層物種多樣性指數分異較小，群落趨于相對穩定。
  10. Similarity coefficient and genetic distances between two arbitrary individuals were caculated according to the data of experiments, the pedigree was constructed by two means ( they were upgma and parsimony ), and genetic diversity was discussedbased on selecting the best conditions of pcr with opg and opa primers from operon company, we obtained 163 bands using 24 random primers. in other words, 163 sites in crested ibis " genome were detected. the bands from 23 primers showed polymorphism. minimurn of polymorphic ratio was 0, maximum was 85. 71 %, and average was 48. 99 %. in the population which was composed by 37 individuals, most of genetic distances between two arbitrary individuals were less than 0. 1. the results showed that the degree of similarity among crested ibises was high while genetic diversity in the population was low accordingly

    我們在對operon公司opg系列和opa系列引物進行優化篩選的基礎上，用24條隨機引物共擴增出163條譜帶，即檢測了朱?基因組中的163個位點，其中23條引物的擴增結果具有多態性；譜帶的多態比率最小為0 ，最大為85 . 71 ，平均為48 . 99 ；在由37隻朱?組成的種群中，任意兩個個體之間的遺傳距離絕大多數在0 . 1以下。這些結果表明，目前朱?個體間的相似程度很高，種群的遺傳多樣性水平較低。
  11. Thus with citing these results we separatedly and thoroughly examined all possible dynamical manners of the changing of the ; populations when the species were developing under the function of catching efforts in three different areas departed by the size relation between the intrisic rates of the system and the values of the harvesting efforts. so we could give out - righter qualitative analysis to this system and the scope of catching efforts which make the species sustainable and the asymptotical properties of the corresponding system were also clear

    於是，本文在引用已有結論的基礎上，根據給定捕獲努力量與系統內稟增長率之間的大小關系分三部分考慮了在不同的捕獲努力量作用之下，種群發展過程中其個體數量變化可能出現的全部動力學行為，從而對系統給予了較完整全面的定性分析，求出了使生態系統持續發展的捕獲努力量的范圍及相應的系統的漸近性質
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