隔离种群

The function of population isolation is stated by the analyzing the domain of attraction of local optimum.

通过对局部最优吸引域的分析，说明了种群隔离的作用。

This concept views species as a group of interbreeding natural populations that are reproductively isolated from other such groups.

生物种概念认为种是一组可以相互杂交的自然种群，它们与其他种群间具有繁殖隔离。

For the first time, this study conducted a series of field sampling in multiple locations over several years and demonstrated that the B and Q biotypes first invade areas with high frequency of transport through human movement of plant materials, and then rapidly spread into surrounding areas and displace indigenous genotypes, and in parallel with displacement significant changes in sex ratio occurred in the mixed populations. Crossing experiments demonstrated that in the B. tabaci species complex there are many genetic groups that are completely or nearly completely isolated in reproduction. Apart from behavioural mechanisms, difference in host plant suitability and insecticide susceptibility between whitefly biotypes may also play important roles in the displacement of indigenous whiteflies by alien whiteflies in Zhejiang.

本研究首次以一个地理区域内广泛系统的野外调查数据证实，B型和Q型烟粉虱首先通过花卉苗木调运入侵交通较为发达的地区，然后迅速向周边扩张并取代土著烟粉虱，同时入侵取代过程伴随着混合种群中性比的变化；杂交试验证明烟粉虱复合种内存在多个生殖上隔离或基本隔离的遗传群；B型烟粉虱在浙江省内迅速取代土著烟粉虱，除行为机制外，生物型之间寄主适应性和药剂敏感性等方面的差异也可能在此过程中起着重要作用。

Biological species concept This concept views species as a group of interbreeding natural populations that are reproductively isolated from other such groups.

Gene flow 生物种的概念生物种概念认为种是一组可以相互杂交的自然种群，它们与其他种群间具有繁殖隔离。

In fact, in reallife, the prey species will be usually a?ected by the patchy environment, oncethe food in their patch is exhausted or there are abundant natural enemies intheir patch, they will leave in search for new habitats or refuges, at the sametime, the predator species also will be confined in a isolated patch, when thereis little food to feed on or the last prey is eaten the predators will depart andbecome predator dispersers.

事实上，在现实环境中食饵种群通常会受到斑块环境的影响，一旦在一个斑块上的食物吃完了或者存在太多天敌，它们会离开这个斑块寻找新的栖息地或避难所，同时捕食者种群同样会受到隔离斑块的影响，当在某个斑块上食饵种群稀少或吃完了最后一个猎物，捕食者种群将会离开变成迁徙者到其他栖息斑块上寻找猎物。

In fact, in reallife, the prey species will be usually a?ected by the patchy environment, oncethe food in their patch is exhausted or there are abundant natural enemies intheir patch, they will leave in search for new habitats or refuges, at the sametime, the predator species also will be confined in a isolated patch, when thereis little food to feed on or the last prey is eaten the predators will depart andbecome predator dispersers.

事实上，在现实环境中食饵种群通常会受到斑块环境的影响，一旦在一个斑块上的食物吃完了或者存在太多天敌，它们会离开这个斑块寻找新的栖息地或避难所，(来源：A2dBC论c4文网www.abclunwen.com)同时捕食者种群同样会受到隔离斑块的影响，当在某个斑块上食饵种群稀少或吃完了最后一个猎物，捕食者种群将会离开变成迁徙者到其他栖息斑块上寻找猎物。

Sphaerocephala had more genetic differentiation owing to small populations and universal isolation among populations. 2. It was an effective method to research kinships among species by RAPD.

说明白沙蒿的种群间由于隔离的普遍存在以及种群较小，使种群间产生更多的遗传分化。

Skinks collected in April of 2003-2005 from seven geographically separated populations were used to study (1) geographic patterns of variation in life-history traits,(2) the effects of proximate factors on reproductive output, and (3) the effects of incubation temperature on hatchling phenotypes.

本文作者以中国大陆七个地理隔离种群的中国石龙子为研究模型，探讨形态和繁殖生活史特征变异的地理格局，研究热环境和储能状况对繁殖输出的影响，检测温度对卵孵化特征以及幼体表型特征的作用。

To detect potential influence from geographical isolation upon population differentiation in small mammals, the skulls of Tibetan pikas among three isolated populations in western Sichuan Province were systematically compared.

为探讨地理隔离对小型兽类种群分化的影响，本文系统比较了四川西部3个隔离藏鼠兔Ochotona thibetana种群在头骨形态上的异同。

Results of interpopulation crossing test of mating, fertilization rate, embryo growth and hatchability under the condition of cage feeding indicated that:(1) due to difference in body size, morphology, habits and characteristics and reproducing season, crossing fertility between wild Japanese quail in China and domestic quail population was lower than that of intrapopulation mating, but fertilized egg through reciprocal crossing could be incubated and produced F1 without prezygotic isolation;(2) crossing of wild male quail ?female small-type domestic quail produced the best effect among all combinations of reciprocal crossings.

通过关于笼饲环境下交配行为、受精率、胚胎发育、种蛋孵化率的种群间杂交试验证明：由于体量、形态、习性、繁殖季节性的差异，我国境内的野生日本鸣鹑与家鹑群体之间的杂交能育性低于同种群交配水平，但可以实现正、反杂交，产生受精卵、孵出杂种一代，不存在合子前生殖隔离；在正反杂交组合中，以野雄鹑X小型雌家鹑的效果最好。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。