当实验种群在简单的实验室条件下建立起来时，捕食者往往会消灭它的猎物，然后自己也走向灭绝，因为没有东西可以吃。
When experimental populations are set up under simple laboratory conditions, the predator often exterminates its prey and then becomes extinct itself, having nothing left to eat.
另一个受到合成生物启发的疟疾工程目标是通过从媒介层面防止疾病的传播，也就是建立一个基因体系作用在蚊子种群当中。
Another synthetic biology inspired malaria project aims to stop transmission of the disease at the level of its vectors by engineering a genetic system to establish itself in a mosquito population.
1971年世界野生动物联合会于西班牙建立一个瞪羚羊保护区，但之后将其种群分开希望能够提高其存活率。
The World Wildlife Federation set up a Mhorr gazelle reserve in Spain in 1971, but later split the herd in hopes of giving the species a better chance of survival.
所以，除非它确实是简单的(一个猎物一个资源种群模型)否则随机建立模型是行不通的。
So build a model at random and, unless it's really simple (a one-prey-one-resource population model) it won't work.
在佛罗里达州建立一个混血种群是一种“妥协”，帕克说，这样作，可以近似地把生态系统恢复到它的自然状态。
Creating a hybrid in Florida is a "compromise," Parker says, that restores the ecosystem to something like its natural state.
为了扭转鲨鱼种群的惊人下降，需要一个全球性的运动，台湾已帮助建立这样的运动发生的阶段。
In order to reverse the alarming decline of shark populations, a global movement is needed, and Taiwan has helped set the stage for such a movement to occur.
个体被发现的时间、地点已经建立模式用于预测种群生存和数量规模。
Patterns of when and where individual animals have been observed are used to estimate survival and population size.
动物园着手在佛吉尼亚州的蓝岭山脉(Blue Ridge Mountains)、北卡罗来纳州海岸等地建立起幅员辽阔的“生存中心”，在此储备非洲动物种群。
Zoos began establishing "survival centers" on vast acreages in Virginia's Blue Ridge Mountains, coastal North Carolina, and elsewhere, and stocking them with African fauna.
AFLP已广泛应用于分类学、病理学、种群遗传学、DNA指纹分析的研究和建立数量性状基因图谱，成为最主要的遗传标记。
AFLP has been emerged as a major new type of genetic marker with broad application in systematic, pathology, population genetics, DNA fingerprinting and quantitative trait loci (QTL) mapping.
建立了生物种群在污染环境中的一个线性生灭过程模型。
We establish a linear birth and death process model of a population in polluted environment.
结果建立了描述种群生长的非线性差分方程模型。
RESULTS Model of nonlinear difference equation that describes the growth of population has been established.
利用以前卢氏、西峡、淅川和内乡4个县的麝香收购数据，建立林麝种群逻辑斯蒂方程。
Using the musk purchase data in Lushi, Xixia, Xichuan, Nixiang 4 counties, Author establishes the forest musk deer population logistic equation.
应用计算机模拟技术，引入同龄组的概念，建立了适合于估测变温条件下粘虫种群动态的计算机模拟模型。
Using computer simulating technique and cohort conception, the simulation model of armyworm population dynamics under variable temperatures was built.
在狗的前面穿过门口或下楼梯是建立种群秩序的重要部分。
This is why I NEVER allow a dog to go through a door or gate before I do.
大盘山可能是七子花最大种群分布点，因此，在这里应该建立一个保护区。
A reserve should be set because Dapan Mountain may be the largest population of H. miconioides.
哈代-魏因贝格二氏定律建立了研究种群遗传的数学基础。
The Hardy-Weinberg law established the mathematical basis for studying heredity in populations.
建立天敌胁迫下食饵种群动态模型的参数估计方法。
The paper gave the way to estimate parameter of the prey population dynamical model under natural enemy.
目的对普通级实验家兔进行剖腹净化建立SPF家兔种群，提高实验用兔的质量，满足科研、生产及检定工作需要。
Objective to establish the SPF rabbits breeding stock for our department, and to meet the needs of scientific research, production and test.
本文通过建立两斑块的单种群扩散系统，主要研究扩散对其中受污染的斑块上种群生存的影响。
The effect of diffusion on the permanence of the population in a polluted patch is studied by setting up a single population diffusive system in two patches.
建立了红松ISSR的最佳反应体系，为进行红松种群间遗传分化的研究奠定基础。
The reaction condition of ISSR experiment of Korean pine was discussed, which was a basis for the study on genetic divergency among Korean pine populations.
介绍粗糙集理论的基本概念及特点，尝试将其与震害预测工作联系，建立一种群体震害预测模型。
This paper introduce the basic concept and character of rough set theory, and attempt to combine seismic damage prediction, then set up a model of congregated seismic damage prediction.
建立了用肉眼就可辨别的乙酰胆碱酯酶显色反应体系，快速检测种群中是否存在靶标抗性及其基因型。
A chromogenic system was established to visualize the presence of target resistance and the relevant genotypes in the population.
只要有很小数量的蝌蚪和蔗蜍穿过围栏，它们就可以建立起一个种群。所以，这种围栏的方法是无效的。
Since it's only necessary for a few young toads or eggs to get though the fence in order to establish population on the other side, the fence is unlikely to be effective.
最后，研究了多种群协同进化策略对虚拟企业基因重组的影响，并建立了相应的基因重组模型。
In the end, the effect of strategy of multi-population co-evolution on gene recombinant of virtual enterprise is studied, in the meanwhile, corresponding gene recombinant models are built.
结论该模式能有效监测猕猴BV抗体变化，为本中心在国内建立猕猴SPF种群提供了有力的技术保障。
Objective To study a BV antibody surveillance model for establishment and maintenance of Macaca mulatta SPF colony.
作为这些准则的应用，一系列特殊的单种群增长的时滞系统被研究，关于种群的持久性和系统的正周期解的存在性的一系列具体的判别准则被建立。
As application of these results, the permanence and existence of positive periodic solutions for a series of special single-species growth systems with delays are obtained.
从迁入建立种群到种群最终消失，可发生3～4个世代。
The process from immigration and fromation of the population to its extinction covers 3 to 4 generations.
建立的系统模型能够提供包括农业防治、生物防治和化学防治措施在内的、对三化螟种群实施有效管理的最优决策方案。
The system model can provide on optimal decision strategy to effectively control PSB population, which contains measures of agricultural control, biological control and chemical control.
本文拟通过网络模型着重讨论适应于昆虫种群研究的状态空间方程的建立问题。
In this paper the network models are used to construct the state-space equation for insect population dynamics.
本文拟通过网络模型着重讨论适应于昆虫种群研究的状态空间方程的建立问题。
In this paper the network models are used to construct the state-space equation for insect population dynamics.
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