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space niche
相关语句
  空间生态位
     Population Dynamics and Breeding Space Niche of Four Heron Species in Tanghai Wetlands
     河北唐海湿地四种鹭的种群动态和繁殖空间生态位(英文)
短句来源
     Among the dominant predatory enemies, but Theridum octomaculatum had the widest time×space niche breadth and this meant that it had relatively long period of occurrence and wide range of distribution.
     捕食性天敌优势种中,中华跃蛛的时间生态位宽度最大,三突花蛛的空间生态位宽度最大,八斑球腹蛛的时空二维生态位宽度最大,说明它的发生期较长、分布范围较广;
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     (3) the market location of tourism resources — space niche.
     ⑶旅游资源市场定位——“空间生态位”。
短句来源
     This bird inhabits in the middle space niche of reed communities.
     其巢的空间生态位是芦苇层次中的中层。
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     The study on niche theory and its applications has become one important part of modern ecology. Although many scholars had attempted to define it, the typical definitions of niche are Grinnell's space niche, Elton's functional niche and Hutchinson's hypervolume niche;
     许多学者都试图给生态位下定义 ,但最具代表性的当推Grinnell、Elton和Hutchinson分别给出的“空间生态位”、“功能生态位”和“多维超体积生态位”定义 ;
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  相似匹配句对
     T-SPACE
     ■-空间
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     SPACE
     空间
短句来源
     Niche
     生态位
短句来源
     (3) the market location of tourism resources — space niche.
     ⑶旅游资源市场定位——“空间生态位”。
短句来源
     Contrastive analysis in space and on time of urban ecosystem niche-fitness
     城市生态系统适宜度的时空对比分析
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The pole ordering of the species with space niche (horizontal and vertical) and time niche is as follows: the community of field rats from Zhongjiang, Sichuan, consists of two demes and one peripheral species. The first deme is formed from A. agrarius plus M. musculus living in almost every corner of field becouse of broad adaption, but their popula- tion peak and feeding time in a day are different. That is the foundation of them living in a same niche. The second deme is R. norvegicus plus...

The pole ordering of the species with space niche (horizontal and vertical) and time niche is as follows: the community of field rats from Zhongjiang, Sichuan, consists of two demes and one peripheral species. The first deme is formed from A. agrarius plus M. musculus living in almost every corner of field becouse of broad adaption, but their popula- tion peak and feeding time in a day are different. That is the foundation of them living in a same niche. The second deme is R. norvegicus plus R. niviventer that belongs to middle type of body, their biology is diff- erent from one another with population peak, feeding time and their un- ique territory that makes them share one niche. R. niviventer is a peri- pheral species of the community that usually lives in hill fields of lone- ly place feeding on corn, cotton, wheat and so on with unique niche se- parate from other two demes. The difference of niche of different spec- ies in one community is great advantage to share limit resources, to reduce cotention among species that are benefit to population increasing.

利用三维生态位资料进行PO排序。结果表明,四川省中江县农田害鼠群落由两个集群和一个边缘种组成。第一集群为黑线姬鼠加小家鼠,分布广,适应性强,二者因发生高峰期和取食时间的差异而集聚共存,占领同一生态位;第二集群为褐家鼠加大足鼠,属中型鼠类,由于二者栖息地的异域性,取食时间和发生高峰期的差异而聚集成群;社鼠为群落的边缘种,主要分布在坡地、草丛,以旱粮作物为主食,独占一个生态位。由于群落中种群生态位的差异,不仅可以更充分有效地利用资源,而且可以减小种间竞争,利于物种自身的繁衍。

The bittern (I xobrychus sinensis Gmelin), a migrant bird, breeds on Xinhai reed bed Fengxian, shanghai, from May to August every year. Durinng the breeding period the population density is 11.4 pairs/ha. The highest is in the irrigated reed bed with 31.18±13.74 pairs/ha. The fluctu-sation in population number is remarked during the breeding period.Analyses of clumped distribution with a Poisson method show S2/X = 3.49>1, p<0.01. The nest distribution belongs to the clumped patterns.During the reproduction period...

The bittern (I xobrychus sinensis Gmelin), a migrant bird, breeds on Xinhai reed bed Fengxian, shanghai, from May to August every year. Durinng the breeding period the population density is 11.4 pairs/ha. The highest is in the irrigated reed bed with 31.18±13.74 pairs/ha. The fluctu-sation in population number is remarked during the breeding period.Analyses of clumped distribution with a Poisson method show S2/X = 3.49>1, p<0.01. The nest distribution belongs to the clumped patterns.During the reproduction period 64.04% of nests were found to be in the clumped distribution. The nest group usually includes 6.08±1.76 nests (n= 12). There are peripheral and central nests made up with a percentage of 60.27 at the clumped nests.This bird inhabits in the middle space niche of reed communities.Great reed warblet (Acrocecphalus arundinaceus L.) inhabits in 42.52cm (n = 27) from the upper space niche and moorhen (Gallinula chloropus indica Blyth) and others in 50.78±17.48(n = 30) from the lower space niche.

黄斑苇鹊是夏候鸟,每年5—8月在上海奉贤县沿海新海塘繁殖。本文对其繁殖期种群分布型等进行研究,并用Poisson法测定。研究表明该种鸟巢的空间分布属于集群型。集群分布之巢占64.04%;每群6.08±1.76只,结构较为松散。其巢的空间生态位是芦苇层次中的中层。文中还讨论了生态位层次之间的关系以及生态位分离、种群密度和种群数量变动等问题。

Based on the survey sampling far from the parent plants, the quantitative analysis on seed dispersal of Hordeum brevisubulatum (Trin.)Link on alkalized meadow in the Songnen Plain of China on six orientations was conducted.The results showed that due to the effect of wind direction, the greatest number of seeds disposed was in the northeast, which was 4 times more than the smallest number in the South west.The mean radius of the seed dispersal was about 130 cm.All seed disposal patterns per unit area in different...

Based on the survey sampling far from the parent plants, the quantitative analysis on seed dispersal of Hordeum brevisubulatum (Trin.)Link on alkalized meadow in the Songnen Plain of China on six orientations was conducted.The results showed that due to the effect of wind direction, the greatest number of seeds disposed was in the northeast, which was 4 times more than the smallest number in the South west.The mean radius of the seed dispersal was about 130 cm.All seed disposal patterns per unit area in different orientations fit, more or less, well with the weibull distribution.It refected that seed dispersal of the with barley provided the character of extending, far from the parent plants, their potential space niche under the natural conditions at the Songnen Plain.The number of seeds dispersed by sequence centrifugation far from the parent plants increased following a Logistic curve relevant to the expansion of accumulated unit area.The rates of increase were relatively lower in the east and northeast where seed disporsal was greater and the distance was farther from the parent plants.

根据顺序远离母株的取样调查,定量地分析了松嫩平原碱化草甸野大麦(Hordeum bre-visubulatum (Trin.) Link)在6 个方向上的种子散布格局。结果表明,在风的作用下,野大麦向东北方向散布的种子数量最多,比数量最少的西南方向多4 倍。种子散布半径平均约130cm 。不同方向单位面积的种子散布格局均较好地适合于Weibull分布,并反映出在松嫩平原自然条件下,野大麦具有远离母株扩大其潜在生态位空间的种子散布机制。不同方向野大麦顺序远离母株的种子散布数量均随着累积面积的增加呈Logistic曲线形式增长,其增长速率以种子散布数量多、距离远的东和东北方向相对较小

 
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