种内竞争

干旱及种内竞争胁迫对树体电指标影响的研究

Influence of Drought and Intraspecific Competition on Trees ' Electrical Indexes

结果表明：暗针叶林中鱼鳞云杉种内竞争强度随着林木径级的增大而迅速减小。

The results showed that intraspecific competition intensity of Picea jezoensis reduced with increase of diameter scale of trees .

种内竞争加强促进了其有性繁殖能力的提高。

Reproductive outputs and ability were enhanced with intraspecific competition increasing in E.

资源获得性和种内竞争对垂穗披碱草生长繁殖的影响

Influences of Resource Availability and Intraspecific Competition on Elymus nutans Growth and Reproduction

AM真菌与植物种内竞争的互作效应

Interaction between arbuscular mycorrhizal fungi and plant intraspecific competition

种内竞争强度受品种特性、环境资源和群体大小等制约。

Intraspecies competition was restricted by variety characteristic , environment resources and population size .

广西极小种群野生植物保护对策探讨种内竞争对桔小实蝇种群动态的影响

Study on the Protection Countermeasures to Extremely Small Population of Wild Plant of Guangxi

而雌虫释放的马鞭草烯酮与顺式马鞭草烯醇可能是调控种内竞争的多功能信息素物质。

Verbenone and cis-verbenol appear to be multifunctional pheromones , which regulate the interspecific competition .

种内竞争强烈，对空间有较强的占据能力。

There was high degree of individual spatial relatedness , sharp intraspecific competition and powerfully occupy space .

高密度植株矮生长速率慢分枝短，不同密度种内竞争对兴安胡枝子几何形态高度可塑。

It was suggested that the geometry morphology plasticity highly responsed to intraspecies competition in different density .

老芒麦同龄种群的种内竞争与结构研究Ⅱ.自疏与密度调节

Studies on the Intraspecies Competition and Structure in Even-aged Population of Elymus sibiricus ⅱ . Self-thinning and density regulation

具有函数放养率或捕获率天敌有种内竞争系统的稳定性

The Stability of the Intraspecific Competition System for the Natural Enemies Which Possess Functional Breeding Rate or Capturing Rate

竞争，尤其种内竞争，是生物存在和进化的机制和动力。

The competition , especially the intraspecies competition , is the mechanism and motivity of biological existence and evolution .

种内竞争的效应及其强度不仅依赖予该种群的数量，而且依赖于该种群的空间分布图式。

Intensity and effect of competition depend on the abundance and also on the spatial distribution of the population concerned .

AM真菌对黄帚橐吾种内竞争、黄帚橐吾与垂穗披碱草种间竞争的影响

Effects of Arbuscular Mycorrhizal Fungi on Intraspecific Competition of Ligularia Virgaurea and Interspecific Competition between Ligularia Virgaurea and Elymus Nutans

生长空间竞争指数及其在油松、侧柏种内竞争中的应用研究

Growth space competition index ( GSCI ) and application in the individual intraspecies competition of Pinus tabulaeformis and Platycladus orientalis forests

在种群水平上，种内竞争的数量调节作用表现为将变化幅度很大的初始密度调节为变化范围很小的终局密度。

The func tions of intraspecific competition in population regulation were demonstrated by the reduction of change extent of the population density from beginning to end .

克隆植物种群生境占据的时间动态，可能主要是土壤营养状况、种内竞争以及种群水平的生理整合的综合作用结果。

The time dynamic of clonal habitat occupying , could be the effect combined with soil nutrition , competition and physiological integration under the population level .

结果表明，落叶松的种内竞争大于种间竞争，且落叶松与水曲柳之间的竞争相对最小。

The result showed that the intraspecific competition was more intensive than the interspecific competition . Especially the competition between larch and ash was the least relative .

致死因子包括寄主抗性、捕食性天敌昆虫、寄生性天敌昆虫、病原微生物、种内竞争共5类13种。

There were 13 kinds of death causing factors which were summarized as 5 sorts including host resistance , predators , parasitoids , pathogenic microorganisms , and specific rivalry .

这是一个用差分方程组表示的一类种内竞争生态模型，其非零奇点稳定性态的研究很大程度地依赖于这一计算公式。

The investigation of stable properties of the positive equilibria is depended very much on the calculating formula . The numerical continuation method for nonlinear equation implies a try of extending convergence domain .

结果表明珙桐受到的竞争强度随着林木径级的增大而逐渐减小，珙桐种内竞争较之与其伴生树种间的竞争剧烈；

The results showed that the competition intensity in Davidia involucrata decreased gradually with the increasing of forest tree diameter class and the intraspecific competition in Davidia involucrata was more intensive than interspecific competition .

以上结果说明丰富的资源（高施肥、高光照）有利于植物生长和繁殖，种内竞争水平对体内的资源分配会产生很大影响。

The results above illustrate that abundant resources ( high fertilizer rate and high light intensity ) are favorable to plant growth and reproduction and intraspecific competition exerts great influence on the resource allocation inside plant bodies .

物种的空间分布模式对种内竞争和种间竞争都会产生重要影响，由于物种空间分布模式引起的集聚效应对集合种群演化有着不可忽略的作用。

The species spatial distribution plays an important role in both the intraspecies competition and the interspecies competition . The aggregation effect due to the species spatial distribution is not ignored in the evolution of the metapopulation .

根系分隔实验表明，随着水分有效性增加，AM真菌加剧紫花苜蓿的种内竞争；这与其他根际因子（土壤溶液和根系）的效应相反。2.AM真菌的地理分布。

Root compartment experiment suggested that AM fungi intensified intraspecific competition of Medicago sativa with increasing water availability ; this is contrasting with the effects of other rhizosphere factors ( including soil solution and root systems ) . 2 .

结果表明：桫椤种内种间竞争强度随林木径级的增大而减小，种内竞争较种间竞争强；

The intensity of intra - and inter-specific competition of Alsophila spinulosa was found to decrease with the increase in DBH ( diameter at breast height ) of the plant .

分析表明影响种群分布格局的因子大致可归纳为两类：一是物种本身的生物学特性，二是由环境条件引起的种内种间竞争；

The results in this paper also show : the factors which affect population pattern are two aspects , one is biological characteristics of species , the other is intra and inter species competition caused by environmental conditions ;

运用邻体干扰指数模型，分析了豫西山区森林群落中主要种群的种内种间竞争强度，以及种群和个体在群落中的竞争干扰状态。

Using the adjacent interference model , this paper studied the inner and intra species competition intensity of main species in mountain forestry community of western Henan Province and the competition interference state of species and individual in the community .

通过对黑龙江穆棱东北红豆杉自然保护区的95株东北红豆杉对象木及980株竞争木的调查，运用Hegyi的单木竞争指数计算分析了东北红豆杉的种内和种间竞争强度。

We analyzed competition intensity using field data for 95 Japanese yew ( Taxus cuspidata ) target trees and 980 individuals of competing species by using the competition index ( CI ) in Muling Nature Reserve of eastern Heilongjiang Province .

珙桐群落种内与种间竞争研究

Intraspecific and Interspecific Competition in Davidia involucrata ( Davidiaceae ) Community