生态位

每种动物都有自己的生态位.

Each animal has its ecological niche .

生态位理论是近20a来生态学研究的热点之一。

The niche theory is one of hot spots of ecology research .

丁酸型产氢-产酸发酵细菌pH生态位探讨

Study on pH ecological niche of pro - hydrogen and ferment bacterium of butyric acid type

隶属函数表明n维资源空间的一个点x属于生态位的程度，也表明物种对环境资源（点）的适应程度。

Membership of a point in the niche is equivalent to the adaptive degree of the species to the point of the environmental resources .

以协同学理论为基础，利用隐喻方法研究企业生态位的演变规律，以Logistic方程构建企业生态位创新演变模型。

Then , bases on synergetic theory to study the evolution law of enterprise niche by metaphor method , and constructs an innovative evolution model of enterprise niche in Logistic Equation .

直翅目（Orthoptera）昆虫群落空间生态位研究

The spatial niche of orthopteran community in Jinan

通过生态位及SWOT分析法的分析，提出中医院必须重新进行经营定位，发展健康产业，与综合性医院错位经营的建议。

To analys Niche and SWOT method , reveal that traditional Chinese medicine hospitals must set up manage-orientated system again , must develop health industry and move shifted management with comprehensive hospitals .

产氢菌群生态位、生态因子和种间协同作用的研究表明，O2、pH值、COD浓度的变化会引起发酵类型的变化。

According to the research on niche , ecological factors and coordination among bacterium , it indicates that the change of O 2 , pH , COD concentration may lead to the change of fermentation type .

本文采用Shannon-Wiener生态位宽度指数将南北坡群落的建群种群分别划分为3个生态类群。

Adopting Shannon-Wiener , the niche breadth index , the article classified constructive species on both slopes into 3 ecologic groups respectively .

采用Shannon-Wiener指数和Petraitis's重叠指数对太岳山森林群落19个优势种群的生态位进行研究。

The niches of 19 dominant populations in Taiyue Mountains forest community , Shanxi are studied by using Shannon-Wiener and Petraitis'overlapping indices .

企业生态位K-r选择策略研究

The K - r Selecting Strategy of Enterprise Niche

Baldwin效应、自然选择和生态位构建分别体现了有机体对环境变化的中性、被动和主动等三种不同响应；

Baldwin effect is compared with natural selection and niche construction , which respectively indicate neutral , passive and positive responses of organisms to environments ;

以群落样方为一维综合资源位，研究了炼山后华山松（Pinusarmandii）针阔混交群落与天然林中主要乔木种群的生态位特征。

Niche characteristics of main tree populations in Pinus armandii needle broad-leaved mixed forest after controlled burning and in natural forest were analyzed by taking community composition types as one-dimension resource states .

因此，本文从生态位角度对软包装企业核心竞争力构成要素进行分析，利用因子分析方法给出验证，同时建立了评价体系与基于TOPSIS法的评价模型。

This paper analyzes the core competence factors of flexible packaging enterprise from the niche angle , using factor analysis method to test , also established the evaluation system and evaluation model based on TOPSIS method .

宿主特异性用Levins生态位宽度进行测定。宿主选择用夹角余弦生态位重叠进行测定。

Levins ' niche breadth was used for the host-specificity , while clip angle niche overlap and a fuzzy clustering analysis were used for host-selection .

在珠海市10个陆生次生林群落中设置了112个10m×10m样方，用于珠海市次生林群落23个优势种的生态位宽度和生态位重叠的研究。

A total of one hundred and twelve 10 m × 10 m quadrats were set up in ten terrestrial secondary forest communities of Zhuhai City , Guangdong Province to study the niche breadth and niche overlap of the dominant plant species .

为克服Hutchinson的生态位定义的局限提出了模糊超体积生态位，以及度量生态位的两个重要指标&生态位宽度和生态位重叠，新公式便于应用。

Fuzzy hypervolume niche was proposed to overcome the limitation of Hutchinson 's niche concept and the formulas to measure two important indexes & niche width and niche overlap which can be easily applied in practice .

采用Petraitis生态位普遍重叠和特定重叠指数，研究了巫溪县红池坝地区华山松群落中10个主要乔木种群的资源利用状况。

By employing Petraitis ' general and specific overlap indices , this paper analyzed the resources utilization of 10 main tree populations in Pinus armandii mixed forest .

采用样方法进行调查，每个样地面积为20m×20m。测度主要种群的生态位宽度、生态位相似比例、生态位重叠值。

In this paper the niche of the main tree populations in Pinus taiwanensis forest in Gutian Mountain National Nature Reserve were measured using the formulas of niche breadth , niche similarity and niche overlap by sampling method , every plot was 20 m × 20 m.

运用TWINSPAN把样方分为8个群落类型，用Levins、Shannon-wiener生态位宽度公式和Petraitis生态位特定重叠指数公式测定群落中主要种群生态位宽度和生态位重叠，并分析各种群生态位的生态学意义。

68 quadrats were divided into eight types of communities by TWINSPAN , which can be treated as one-dimension resource states . The niche breadths and overlaps of main dominant species were measured using a series of indices proposed by Levins , Shannon-wiener and Petraitis .

分析红豆树（Ormosiahosiei）百年以上老林分的11个乔木层树种的相对优势度、物种多样性、均匀度、生态位宽度、生态位重叠度等指标。

The relative dominant degrees , species diversity , even degrees , niche width , niche overlapping degrees , and other indicators were analyzed by the arbor trees of 11 stories in the hundred-year-old virgin forest of Ormosia hosiei Hemsl . et Wils .

澜沧江上游森林珍稀草本植物生态位研究

Niche of rare herbage plants in the upstream of Lancang River

企业生态位参数计测方法研究

Study on the Methods of the Measuring of Enterprise Niche Parameters

生态位理论及其对企业经营管理的启示

Ecology NiChe Theory and its Enlighten to the Management of Enterprise

生态位较高的元胞具有较强的整理适宜性。

Higher niche cellular usually has a stronger suitability for consolidation .

群落中优势种对相同土壤资源的利用几乎是完全重叠的，并没有呈现出资源生态位的分化。

Dominant species almost use the same recourses without niche differentiation .

蚊虫地理生态位及其重叠群划分的初步研究

Preliminary study on the geographical niche and overlap group of mosquitoes

基础与实现生态位及其中心点的涵义与测度

On the Implications of Fundamental , Realized Niche and Niche Center

干旱区植物水分生态位适宜度的数学模型及其过程数值模拟试验研究

Studies on Numerical Simulation of Moisture Niche-fitness Procedure of Arid Plants

开封市的城市生态位变化分析

Change Niche Pattern Dynamics of Different Functional Modules in Kaifeng City