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广泛的托福阅览布景常识堆集，有助于新托福阅览速度和精确率的前进。托福阅览体裁分为天然科学、人文科学、互联网等几大类，假定同学们平常能对这些品种的文章都有所涉猎，托福阅览考试中遇到有关的论题就会有非常了解的感触。下面修改给我们供给一篇关于歇息地选择，期望能拓宽同学们的阅览面。
托福阅览真题再现：
版别一：一个叫Sale的科学家总结总结出了歇息地的寻找和选择是因为多种cue归纳构成一个应激起应，他驳斥了固有方法的说法。举了一个鱼类实验的比方，然后还说到这种说法无法说明为何一种鸟会根据日照时刻来选择歇息地，最终说这种方法当前还有待研讨。
版别二： 第三篇讲动物靠啥选择歇息地 某理论说 动物感知器官搜集信息然后反应神经体系后又说其他理论一个是找更多食物，另一个缘由是躲避被捕食，最终说还需要进一步研讨啥真实影响，更细节记不得了…
版别三：第三篇是选择歇息地。说有的是到了suitable的当地就停下，有的是先有mind然后再找啥的。其他的忘了〒_〒
解析：这篇文章环绕动物如何选择歇息地这个主题打开证明。做题时需留心记载笔记，关于规划化阅览及最终一题的答复有很大优点。动物行为主题是托福阅览常见考点，规划不难了解。需留心各例子和主题的支撑联络。因为条理清楚，最终一题尽量思考从正面选出，打扫为辅。
托福阅览有关背就梁
Habitat selection
Habitat selection is the process or behavior that an animal uses to selector choose a habitat in which to live; correspondingly, plants and fungi engagein habitat selection, even though their inherent mobility is different fromanimals. To live in a habitat an animal must first have access to the habitat.Once the animal has access to the habitat it must be able to tolerate theconditions of the habitat and find the resources that it needs to survive inthat habitat. Animals must be able to tolerate at least two kinds of factors inthe habitat. These factors are abiotic factors and biotic factors. Abioticfactors are non-biological factors such astemperature, humidity, salinity and pHto name a few. Biotic factors are biological factors such ascompetition,predation, and disease. If both abiotic and biotic factors can be tolerated theanimal must also be able to find the resources that it needs to survive. Theseresources include food, shelter from abiotic and biotic factors, and a mate. Ifan animal can not tolerate abiotic and biotic factors in a habitat or if it doesnot find food, shelter or a mate in that habitat, it is likely that the habitatwill not be selected and the animal will leave the habitat. Habitats that aresuitable for animals will often times have many animals of the same speciesthere. Th
is can lead to intraspecific competition. All of these things have animpact on the ecology of the animal (its distribution and abundance).
One way to determine if a habitat is suitable for an animal is to conduct atransplant experiment. In a transplant experiment animals of interest aretransplanted or brought to a habitat to test that habitat for suitability. Ifthe animal survives and reproduces in the habitat, it is concluded that thehabitat was unoccupied because the animal was unable to get there or because itdid not have access to the habitat. If the animal does not stay, survive, orreproduce in the habitat, it is concluded that it could be due to a lack ofresources or because certain biotic and or abiotic factors are present and itcan not tolerate them. A habitat that is suitable can become unsuitable if theanimal's resources and or biotic and abitoic factors change. This is what oftenhappens when we develop areas that are currently undeveloped. This causes us tosee animals that we never saw in our environments before. It also can lead to adecline in the number of these animals.
