果洲群 的英文怎麼說
中文拼音 [guǒzhōuqún]
果洲群
英文
ninepin group-
The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu
另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。In this paper, the resistance of sweet corn varieties to asian corn borer ( acb ) ( ostrinia nubilalis ) were evaluated by means of host experimental population life table and natural population life table ; the order of their resistibility is as follows : s2 > y3 > h1 > y1 > c20
摘要利用亞洲玉米螟實驗種群生命表和自然種群生命表方法評價甜玉米品種對亞洲玉米螟的抗蟲性，結果得出亞洲玉米螟對不同甜玉米品種的抗性大小依次為：穗甜2號>奧甜2號>華1 >奧甜1號>超甜20 。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。3 eight communities are identified by gradient analysis in desert - oasis ecotone, and species are divided into 5 ecological groups. dca ordination is superior to cca and dcca. variation of vegetation explained by environmental and spatial factors reaches 23. 4 % ; among these the species matrix explained by non - spatial soil factors account for up to 11. 5 % of variation, spatial variation that is not shared by soil factors explains up to 11. 6 %, their interaction explains up to 0. 3 %
3 、通過梯度分析，阜康荒漠綠洲過渡帶群落可分為8個類型，物種可分成5個生態類型； dca排序效果優于cca和dcca ；土壤和空間因子解釋了植被分異的23 . 4 ，其中土壤因子佔11 . 5 ，空間因子佔11 . 6 ，二者交互作用佔0 . 3 。The short - range search - and - rescue exercise was designed to strengthen cooperation and coordination between the search - and - rescue units of the cad and pla, and to enhance technical exchanges between various search - and - rescue units of the hong kong special administrative region government and pla
有關演習由民航處籌辦，于果洲群島舉行，旨在加強民航處和駐港部隊搜救單位的合作和協調，以及促進香港特別行政區政府和駐港部隊搜救單位的技術交流。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57 % between the chinese and north american populations, 55 % between the chinese and european populations, and 46 % between the european and north american populations
系統樹圖清楚地表明中國和北美群體的遺傳關系比較近，而歐洲和北美的關系最遠，這同遺傳交配實驗的結果完全一致。Research findings from recent surveys of the pearl river estuary indicate that hong kong and guangdong waters share the same population of chinese white dolphin
根據最新的珠江三角洲研究結果顯示，在香港與廣東省水域出沒的中華白海豚屬同一種群。The results showed that v. amurensis, v. yeshanensis and v. riparia were the most resistant to the hardiness ; v. adstricta, v. piazezkii and v. quinquangularis were middle resistant ; v. romanetii, v. davidii and v. daridii var. cyanocarpa were less resistant ; v. qiolingensis, v. bashanica and v. vinifera were susceptible to cold stress
結果表明，我國葡萄屬野生種（東亞種群）山葡萄、燕山葡萄以及美洲種群中的河岸葡萄為高抗類型； ? ?葡萄、復葉葡萄、毛葡萄為中抗類型；秋葡萄、刺葡萄、瘤枝葡萄為低抗類型；秦嶺葡萄、麥黃葡萄和歐洲葡萄為不抗類型。But many places, especially in africa, where a larger share of the population needs treatment, are unlikely to be rich enough for a long time ? and their dependence will be further prolonged if their populations are sick and dying
但是在象非洲那樣的很多地方，擁有一大群需要治療的人口，是不太可能足夠富裕到能維持長久? ?並且如果他們的人們是病的及垂死的，他們的治療依賴性將更遠地延長。Two dynamic concerts showcasing the achievements of over 400 budding musicians under the tutelage of music maestros, scott parkman, ralph hultgren australia, liu sha china and dr. axel theimer
駐營音樂大師柏文（美國） 、侯德群（澳洲） 、劉沙（中國）及泰爾瑪博士（美國）悉心指導逾四百名年青樂手，在兩場音樂會中展示訓練成果。This finding may account for the ability of peasant farmers in asia and elsewhere, who are extremely lean and active, to consume large amounts of refined carbohydrates without experiencing diabetes or heart disease, whereas the same diet in a more sedentary population can have devastating effects
這項發現也可以用來解釋亞洲與其他地區的農民，他們十分清瘦且高度勞動，食用大量精製的碳水化合物也很少發生糖尿病或心臟病；同樣的飲食，對坐辦公室的族群卻具有毀滅性的後果。分享友人