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the mainland    
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  大陆
    STUDIES ON THE POPULATION GENETICS OF ONCOMELANIA SPP.IN THE MAINLAND OF CHINA Ⅳ.ELECTROPHORETIC PATTERN OF SNAIL ALLOZYME
    中国大陆钉螺种群遗传学研究 Ⅳ.钉螺等位基因酶谱
短句来源
    An analysis of the flora of seed plants of Taiwan, China: its nature, characteristics, and relations with the flora of the mainland
    中国台湾种子植物区系的性质、特点及其与大陆植物区系的关系
短句来源
    Random Amplified Polymorphic DNA(RAPD) Analysis of Drosophila simulans in the Mainland of China
    中国大陆拟果蝇(Drosophila simulans)的随机扩增多态性DNA分析
短句来源
    There are 56 species known in China, of which 47 in the Mainland (including 1 fossil species), 7 in Taiwan and 2 in both Mainland and Taiwan.
    我国已知56种,其中大陆记载47种(包括1化石种),台湾记载7种,大陆和台湾共有种2种。
短句来源
    The deep sequence divergence (7.1%) indicates that two split lineages are included in this frog: the mainland lineage (A) and the northeast lineage (B).
    高达7.1%的序列分歧表明黑斑侧褶蛙包括明显的两大支系:大陆支系A和东北支系B。
短句来源
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  大陆地区
    Cortinicara gibbosa (Herbst) is newly known to distribute in the mainland of China.
    隆背花薪甲Cortinicaragibbosa(Herbst)是全北区种,但为我国大陆地区新记录种。
短句来源
  大陆
    STUDIES ON THE POPULATION GENETICS OF ONCOMELANIA SPP.IN THE MAINLAND OF CHINA Ⅳ.ELECTROPHORETIC PATTERN OF SNAIL ALLOZYME
    中国大陆钉螺种群遗传学研究 Ⅳ.钉螺等位基因酶谱
短句来源
    An analysis of the flora of seed plants of Taiwan, China: its nature, characteristics, and relations with the flora of the mainland
    中国台湾种子植物区系的性质、特点及其与大陆植物区系的关系
短句来源
    Random Amplified Polymorphic DNA(RAPD) Analysis of Drosophila simulans in the Mainland of China
    中国大陆拟果蝇(Drosophila simulans)的随机扩增多态性DNA分析
短句来源
    There are 56 species known in China, of which 47 in the Mainland (including 1 fossil species), 7 in Taiwan and 2 in both Mainland and Taiwan.
    我国已知56种,其中大陆记载47种(包括1化石种),台湾记载7种,大陆和台湾共有种2种。
短句来源
    The deep sequence divergence (7.1%) indicates that two split lineages are included in this frog: the mainland lineage (A) and the northeast lineage (B).
    高达7.1%的序列分歧表明黑斑侧褶蛙包括明显的两大支系:大陆支系A和东北支系B。
短句来源
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  the mainland
The genetic differences between the fish from Nandujiang River and those from the mainland indicated that they were separated early.
      
From September 2001 to 2003, a total of 1077 cases of SPH distributed in 135 hospitals all over the mainland of China were included for analysis.
      
Distribution of water vapor content (WVC) and its seasonal variation over the mainland of China
      
Based on the meteorological data of 105 aerological stations during the period of 1960-1969, the monthly average water vapor content (WVC) in air column over the mainland of China is calculated.
      
In the second population, located on the mainland (Herdsman Lake), snakes feed mostly on frogs (small prey).
      
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Quntitative comparisons have been made between the Trombiculid mites on the rats and mice collected from different localities in Shanghai district and some conclusions can be drawn as follows:1.When the quantitative indices(number of mites/number of rodents)from several places of the mainland and the islands are compared it can be seen that they are higher in the former than in the latter.On the rodents from the islands it can further be seen that those from Chang Hsing Island harbor less mites than those...

Quntitative comparisons have been made between the Trombiculid mites on the rats and mice collected from different localities in Shanghai district and some conclusions can be drawn as follows:1.When the quantitative indices(number of mites/number of rodents)from several places of the mainland and the islands are compared it can be seen that they are higher in the former than in the latter.On the rodents from the islands it can further be seen that those from Chang Hsing Island harbor less mites than those from Chung Min Island which bears a resemblance to the mainland in the indices.This phenomenon is thought to be caused by the longer history of Chung Min Island which was formed more than a thousand years.But Chang Hsing Island was formed less than 100 years.2.The indices and rates of infestation of Tromlicula scutellaris are higher in localities nearer to the sea and thus a gradient in the population density is conspicuous.3.The species of the Trombiculid mites show different habitat preference.Odontacarus yosanoi prefers hosts living by the dwelling houses.Other species may infest hosts living either by the houses or in the open fields;but the population densities are higher on hosts from the fields,among which Apodemus agrarius is the host of special importance in the whole district.4.The winter population densities of Trombiculid mites on the rodents from bamboo groves and open fields are compared.The indices are higher in the former than in the latter.The index of Trombicula yui is the highest;that of T.palpalis the next.The high indeces in the bamboo groves in winter is caused by the immigration of the hosts harboring T.yui.5.It is found that besides the bamboo groves the indices of the rodents collected from graves are high;and the indices of T.yui,Gahrliepia saduski,T.scutellaris and T palpalis are higher than the rest of the species.The indices of the hosts from fields of sweet potato,rice,radishes are high;but those from fields of wheat and rape as well as from the bare fields are low.

本文对上海地区鼠体恙螨种类和在不同环境中数量进行了调查: 1.陆地(川沙、嘉定、南汇县)和长兴岛、崇明岛恙螨指数有差别。陆地恙螨指数均高于岛屿。但陆地和长兴岛、崇明岛之间恙螨指数差别也有不同。陆地恙螨指数和形成历史达千年以上的崇明岛比较,则差别较小,而陆地恙螨指数和形成不到百年历史的长兴岛差别极大。 2.小盾恙螨在沿海边县的恙螨指数和寄生率均远较非沿海边县为高。在沿海边各县中,离海边愈近的乡镇,其指数愈高。 3.室内、外鼠恙螨种类比较,与氏螯齿恙螨明显的分布于居宅室内附近的家鼠体上。而居中恙螨、高山真棒恙螨和温氏五甲恙螨在褐家鼠等鼠体上未曾发现。从恙螨的数量来看,室外鼠体上恙螨指数远较室内鼠体为高,故认为室外鼠是恙螨的主要宿主。其中特别黑线姬鼠是本地恙螨的主要宿主。 4.根据冬季竹林和非竹林恙螨数量的比较来看,竹林恙螨指数远远高于非竹林。从恙螨种类来看,在竹林内恙螨指数较高的螨种是于氏恙螨和须恙螨。 5.除竹林外,坟堆内所捕到的鼠恙螨指数也较高。其中指数较高的螨种有于氏恙螨、萨氏背展恙螨、小盾恙螨和须恙螨。从各种作物来看,以甘薯田、稻田、甘蓝田、胡萝卜田内捕到的黑线姬鼠恙螨指数较高;麦田、油菜田和无作物田为最...

本文对上海地区鼠体恙螨种类和在不同环境中数量进行了调查: 1.陆地(川沙、嘉定、南汇县)和长兴岛、崇明岛恙螨指数有差别。陆地恙螨指数均高于岛屿。但陆地和长兴岛、崇明岛之间恙螨指数差别也有不同。陆地恙螨指数和形成历史达千年以上的崇明岛比较,则差别较小,而陆地恙螨指数和形成不到百年历史的长兴岛差别极大。 2.小盾恙螨在沿海边县的恙螨指数和寄生率均远较非沿海边县为高。在沿海边各县中,离海边愈近的乡镇,其指数愈高。 3.室内、外鼠恙螨种类比较,与氏螯齿恙螨明显的分布于居宅室内附近的家鼠体上。而居中恙螨、高山真棒恙螨和温氏五甲恙螨在褐家鼠等鼠体上未曾发现。从恙螨的数量来看,室外鼠体上恙螨指数远较室内鼠体为高,故认为室外鼠是恙螨的主要宿主。其中特别黑线姬鼠是本地恙螨的主要宿主。 4.根据冬季竹林和非竹林恙螨数量的比较来看,竹林恙螨指数远远高于非竹林。从恙螨种类来看,在竹林内恙螨指数较高的螨种是于氏恙螨和须恙螨。 5.除竹林外,坟堆内所捕到的鼠恙螨指数也较高。其中指数较高的螨种有于氏恙螨、萨氏背展恙螨、小盾恙螨和须恙螨。从各种作物来看,以甘薯田、稻田、甘蓝田、胡萝卜田内捕到的黑线姬鼠恙螨指数较高;麦田、油菜田和无作物田为最低。

The larvae of the Spotted seer Scomberomorus guttatus were obtained by plankton net tows from Beibu (Tonkin) gulf and Northern part of Nan Hai in 1963 and 1965. The spotted, seer is a warm water species in general they live in open seas. In the breeding season they usually aggragate in shoals and migrate towards the shallow waters along the mainland and near the estuary, where the water temperature was 23.0-26.0℃, the salinity 32.00-34.46‰ and 22.0-27.0℃, the salinity 20.00-29.00‰ respectively in Nan Hai...

The larvae of the Spotted seer Scomberomorus guttatus were obtained by plankton net tows from Beibu (Tonkin) gulf and Northern part of Nan Hai in 1963 and 1965. The spotted, seer is a warm water species in general they live in open seas. In the breeding season they usually aggragate in shoals and migrate towards the shallow waters along the mainland and near the estuary, where the water temperature was 23.0-26.0℃, the salinity 32.00-34.46‰ and 22.0-27.0℃, the salinity 20.00-29.00‰ respectively in Nan Hai and the East China sea. The adult does not exist in the Yellow sea.

本文是通过大面积调查,用浮游生物网在南海区采到的斑点马鲛仔稚鱼,观察研究的结果。采到的最小仔鱼体长4.15毫米,其外形已显现出马鲛鱼类仔鱼的一般外貌,体呈延长形,尾部较细,肛门位于体中央略前,头较短钝,肌节在48—49个左右。尾部下缘出现一列小星状黑色素。体长达4.70毫米时,前鳃盖骨出现2个小棘。当体长达5.00—5.50毫米时,背鳍膜前端出现一个黑色斑,随着鱼体的长大,此黑色斑也逐渐增多变成彼此靠近的数个色素丛。发育到第一背鳍棘出现后,黑色素丛仍分布在棘的鳍膜间。

This paper reports on a survey (conducted during 1979, 1981-1982) of the birds and mammals on Dongtou Island and its adjacent mainland area, as well as on five islands of the Zhoushan Archipelago, Zhejiang Province.The survey shows that there are fewer species of animals on the islands than those on the mainland because of the separating effect of strait. For instance, a total of 16 species of birds and mammals were found on Dongtou Island during May-June 1979, while 51 species on the adjacent mainland...

This paper reports on a survey (conducted during 1979, 1981-1982) of the birds and mammals on Dongtou Island and its adjacent mainland area, as well as on five islands of the Zhoushan Archipelago, Zhejiang Province.The survey shows that there are fewer species of animals on the islands than those on the mainland because of the separating effect of strait. For instance, a total of 16 species of birds and mammals were found on Dongtou Island during May-June 1979, while 51 species on the adjacent mainland area. However the population density on the former is higher than that on the latter The reason is that there are fewer competitors and fewer carnivores on the islands so that the population densities of some species of birds and mammals are quite high and the phenomena of 'niche expansion' occur. The survey also reveals that Passer montanus and Rattus rattoides are the dominant species on all the islands.Preston (1962) pointed out that the number of species on islands increases with island area, and suggested a formula for the relation as S=cAz. In our investigation of mammals on the five islands of the Zhoushan Archipelago a similar conclusion has been reached: S=2.12 A0.29. The density of mammals on these islands, however, tends to decrease with the extension of island area. In addition, the species number and population density of both birds and mammals are found to be closely related to the different types of vegetation on the islands.Over-hunting and destruction of habitats have led to the decrease or even to the extinction of some species of mammals on the islands. Therefore, some measures of protecting and developing the animal resources on the islands are suggested in the paper.

对浙江洞头岛及舟山五岛的鸟兽调查表明,海岛动物的种数较相邻大陆为低,但种群密度却高于大陆,岛上的某些种类出现生态位扩展的现象。舟山五岛兽类的种数和岛屿面积呈正相关,其关系式为S=2.12A~(0.29),但种群密度随着岛屿面积的增大而下降。文中据此提出了保护和发展岛屿动物资源的某些措施。

 
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