繁殖種群 的英文怎麼說
中文拼音 [fánzhízhǒngqún]
繁殖種群
英文
breeding population-
The reproductive characteristics and population structure of artemisia ordosica, hedysantm scoparium, caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area. stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition. the study showed that : the artificial - natural vegetation built with sandbreaks and plants is stable in shapotou area
通過對沙坡頭人工固沙植被區主要建植種群檸條（ caraganakorshinskii ） 、花棒（ hedysarumscoparium ）和油蒿（ artemisiaordosica ）的繁殖特性及種群結構的研究，以及自然侵入的一年生草本植物小畫眉草（ eragrostispoaeoides ）和霧冰藜（ bassiadasyphylla ）繁殖特性的研究，探討了在植被的持久性和變異性，分析評價了主要受惡劣環境壓力下的人工固沙區植被的穩定性。A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation
屬一群擁有共同祖先和明顯特徵的有機體，尤指屬于同一物種的一群，通過人工選擇來發展，通過有控制的繁殖來維持Monitoring the whole avifauna ( community ) both in breeding season and non - breeding season. individual and population are good indicators of environment pollution, and there are still some questions about the guild monitoring and community monitoring. finally, we surveyed bird species and relative abundance in three areas of the upper reaches of minjiang river during both summer and autumn
普遍意義上的用鳥類監測環境主要包括： 1監測某一種的繁殖期和非繁殖期（冬季）種群； 2監測不同種的種群動態； 3監測整個鳥類區系的種群動態和群落動態，也就是（ 1 ）種群及個體； （ 2 ）種團； （ 3 ）群落三個層次。Great bustard ( otis tarda ) is an important endangered species. it breeds in the north of china
大鴇（ otistarda ）是重要的瀕危物種，在中國三北地區有多個繁殖種群。The enormous numbers of field mouses encountered during times of peak populations greatly complicate control.
在種群繁殖高峰期間出現的巨量田鼠使防治問題大為復雜。Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.
完全在同一種群內進行雜交的個體比以兩個方向進行雜交的個體繁殖後代要多，因此為了產生無生機的雜種，就要消耗掉一些配子。Gene pool the total number and variety of genes existing within a breeding population or species at a given point in time
基因庫：是繁殖種群或種類在某一給定的時間所有基因的數量或種類。The vegetative tiller can produce more buds than the reproductive tiller on hordeum brevisubulatum population, and the age structure of bud from either vegetative tiller or reproductive tiller is an increasing model
野大麥種群營養蘗分蘗節的營養繁殖力比生殖蘗強，營養蘗和生殖蘗上芽的組成亦均為明顯的增長型年齡結構。Bud is produced in both rhizome and tiller - node, rhizome can produce more buds than tiller - node on hordeum brevisubulatum, arundinella hirta, calamagrostis epigeios, c. rigidula and hierochloe glabra populations. both 1st age rhizome and tiller - node of 1st age tiller are mainly two contributors in importing of bud bank
根莖和分蘗節是芽的主要產生部位，牛鞭草、野古草、拂子茅、硬拂子茅和光稃茅香種群根莖的營養繁殖力比分蘗節強， 1齡根莖和1齡分蘗株分蘗節是芽庫輸入的主要貢獻者。The tiller - nodes of 6 species of rhizome grass, including leymus chinensis, hemarthriajaponica, arundinella hirta, calamagrostis epigeios, c. rigidula, hordeum brevisubulatum in songnen plain, can live at best for 2 to 5 years, and do 2 to 4 propagating generations which is the same as the age class of tiller in number. the age structure of population is an increasing model which the young tiller is more than the old at quantity and biomass. during the whole growing season, the age spectrum varies for each species
松嫩平原，羊草、牛鞭草、野古草、拂子茅、硬拂子茅和野大麥等6種根莖型禾草種群的分蘗節最多可以存活2 5個年度，可以進行營養繁殖2 4個世代，分蘗株的齡級數與分蘗節營養繁殖的世代數相同，在種群分蘗株的數量和生物量上，生長季的各個時期均以幼齡分蘗株占較大比例，呈現為明顯的增長型年齡結構，各種類的年齡譜組成各異。The reproductive life table of polyphagotarsonemus latus
側多食跗線蟎實驗種群繁殖特徵生命表Genetic control is an important component of the general management of nonhuman primate colonies
摘要遺傳學控制在非人靈長類動物人工繁殖種群諸多管理環節具有至關重要的作用。Selfing heterozygotes halves the heterozygosity, and thus outbreeding maintains heterozygosity and produces a more adaptable population
自交雜合子有一半雜合性，因此遠系繁殖可以產生適應能量更強的種群。This investigation of the two species is mainly dealing with their morphological characters, population biology, pollination biology and molecular biology, based on the following methods such as section slides, sem, artificial pollination, rapd analysis and gravity glass slides. this study is intended to demonstrate the distribution patterns of the populations for the two species, the numerical and spatial characteristics of ecological difference, the biological characters of seeds, pollination mode and reproductive stratigies, and molecular genetics. in light of the results from this study, the reasons that resulted in the present dangerous situation for the two species were discussed, and the suggestions for protecting them were proposed
本研究以種群為單位，採用石蠟切片、掃描電鏡、重力玻片、人工授粉、 rapd分析等方法，對兩種植物的形態生物學、種群生物學、繁殖生物學和分子生物學等方面進行了詳細研究，以揭示它們的種群分佈類型及成因、種群生態環境差異的數量特徵和空間特徵、種子生物學特徵、傳粉和生殖策略以及種群分子遺傳特徵，進而探討兩物種瀕危的成因和機制，並針對性地提出了科學合理的保護對策和建議。It is home to an important breeding population of the endangered southern right whale as well as important breeding populations of southern elephant seals and southern sea lions
該保護區是瀕危南極獨角鯨、南極海象和南極海獅繁殖種群的庇護地。In this dissertation, the interactive system of delphastus catalinae ( horn ), its preys and competitor was studied, including comparison between alternative preys and natural prey consumed by d. catalinae ; the system of d. catalinae and its preys ; morphology comparison between d. catalinae and its competitor serangium japonicum chapin ; biology, ecology and predation of s. japonicum ; and also the interspecies competition between d. catalinae and s. japonicum. 1. besides whitefly pests, d. catalinae could also feed on two species of alternative preys : tetranychus nr
Fijiensis和桃蚜myzuspersicae （ sulzer ） ，並在實驗室條件下，以自然獵物煙粉虱bemisiatabaci為對照，研究了替代獵物對小黑瓢蟲的發育、存活、繁殖及對實驗種群增長的綜合影響，結果表明： （ 1 ）小黑瓢蟲以蚜蟲為獵物時，成蟲不會產卵，但可延長成蟲的壽命；以紅蜘蛛為獵物時，成蟲可產卵並可完成整個世代。This paper briefly reviews the possible effects of climate change on avian biology and ecology all over the world, with emphasis on new findings from several long - term studies in europe and north america, which provide unique opportunities to investigate how long - term changes in climate affect birds at both individual and population levels
根據全球范圍內氣候變化對鳥類影響的研究資料，尤其是北美和歐洲的一些長期研究項目的成果，綜述了氣候變化對鳥類分佈范圍、物候、繁殖和種群動態變化等方面的可能影響。( 2 ) attach importance to the conservation of wintering area, keep the balance of wintering population, and reduce the press of preserving the genetic diversity of breeding populations
（ 2 ）重視越冬地的保護，使越冬種群保持平穩，以減少對各地繁殖種群遺傳多樣性保持的壓力。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( 3 ) the migrating routes and stopovers between breeding and wintering areas should be brought into the protection programming and ensure the amount of breeding and wintering populations
（ 3 ）在各個繁殖地和越冬地之間的遷徙通道和中途停留地也應納入大鴇的保護規劃，以保證越冬種群和繁殖種群的數量。分享友人