查询词典 prey

However, the time of the polecat used to kill prey was reversed for the three prey species. So the polecat depended on its prey handling time and behaviours of prey to select the prey and get the largest net food value.

因此，在室内条件下艾虎对猎物的选择性主要依赖于其本身处理猎物的行为时间分配和猎物的反捕食行为，使单位时间内获得的能量值最大[动物学报 52(3)：437-443，2006]。

At a certain range, habitat loss and its spatial structure can benefit the control of the epidemic disease, which indicates the possibility of using human disturbance in habitat as a potential epidemic-control method in conservation.(6) Not only the quantity of habitat loss but also the spatial correlations of patch types caused by nonrandom habitat loss affect the invasion and transmission of disease. More fragmented landscape (high amount of habitat loss, low clustering of lost patches) hinders the parasitic infection, which also indicates that whether the spatial heterogeneity benefits or hinders the invasion is dependent on the considered ecological process.(7) Two components of the spatial heterogeneity (the amount and spatial autocorrelation of the lost habitat) form a trade-off in determining the host-parasite dynamics.(8) Within a certain range of habitat loss, host can counterbalance the positive and negative effects, and shows a rising tendency.(9) The epidemic is more likely to break out in the prey-predator system if only a small amount of habitat loss.(10) A highly aggregated distribution of species is a common behavioral strategy when dealing with habitat loss or other environmental stresses.(11) The parasite-host/prey-predator eco-epidemiological systems have the similar mechanism with the intraguild predation systems, and the predator acts as the intraguild predation, the infected prey acts as intraguild prey, and the susceptible prey acts as shared resource.(12) Species at the highest trophic level are no longer affected the most by habitat loss, which depend not only on the biological mechanism but also on the external environmental disturbances.

随着邻体数目的增加，病毒的感染力度变得更大而且在空间上形成聚集的波形；(5)生境破坏及其空间结构在一定范围内有利于疾病的控制，这暗示人为对生境的干扰可作为疾病控制的一个潜在方法；(6)生境破坏的数量以及不同类型生境的空间分布格局都显著地影响了寄生病毒的入侵和传播，生境破碎化程度越高(高丧失斑块的数量或低聚集程度)，将越有害于病毒的入侵和传播，这暗示了空间异质性是否有益于物种的入侵依赖于所考虑的生态过程；(7)由生境破坏引起的空间异质性的两个组分之间存在负偶联关系trade-off(8在适度的生境破坏范围内，宿主种群能够平衡生境破坏带来的正负两种效应并呈现增长趋势；(9)在捕食-食饵系统中，寄生感染病毒极有可能在生境破坏量较低时爆发；(10)物种在面临生境破坏或者其它环境压力时表现出更高的聚集分布策略；(11)寄生-宿主/食饵-捕食生态传染病系统与共位捕食食物网结构具有相似的生物机制，其中捕食者扮演共位捕食者的角色，已感染食饵作为共位食饵，易感染食饵扮作共同消耗的资源；(12)位于最高营养级水平的种群对生境破坏的响应不一定是最敏感的，这不仅依赖于内在的生物机制同时也依赖于外在的环境干扰。

The results indicated that the prey items of the plaice included 11 groups or 38 prey species, but only Crustacea and Lamellibranchia were the most important prey groups, accounting for 99% of the total food composition by percentage of index of relative importance. Euphausia pacific, Crangon affinis and Tellinidae were the dominant prey species.

结果表明：高眼鲽摄食的食物种类包括11类38种，其中甲壳类和瓣鳃类为优势饵料类群，共占食物相对重要性指数百分比的99%；食物中的优势饵料种类为太平洋磷虾、脊腹褐虾和樱蛤。

The time and frequency of the polecat searching different preys and burrows were nearly the same. The polecat attacked virtually all prey offered and thus exhibited opportunistic foraging behaviour. However, it did not captured all prey with equal sequence. It first captured the zokor, then the pika and last for the root vole. In addition to using the typical musteline killing method of biting the nape of the neck, the polecat evolved a variety of killing methods suited to a range of prey types depending on the activity, size and anti-predation ability of prey. The zokor was bitten on the head, whereas the pika was killed by bites to the head or throat and the root vole was killed by bites to the head or chest. The time polecats pursued the root vole was the longest, followed by that used in pursuing the pika and the zokor.

实验结果表明：艾虎对三种猎物的搜寻时间和搜寻频次基本一致，在搜寻猎物的过程中并非已知洞道系统中所存在的食物信息，是一种机会主义的捕食者；艾虎除了具有典型鼬科动物捕杀猎物的方法外，能够根据猎物的大小、活动性和反捕食能力采用不同的捕杀方法，在捕杀猎物的过程中首先捕杀高原鼢鼠，其致死部位全部为头部，其次捕杀高原鼠兔，其致死部位除了头部外，明显增加了颈部的比例，最后捕杀根田鼠，其致死部位主要是头部和胸部；艾虎在捕杀猎物的过程中，追击根田鼠的时间最多，追击鼢鼠的时间最少，而用于捕杀根田鼠的时间最少，用于捕杀鼢鼠的时间最多，艾虎捕杀高原鼠兔后单位时间内获得的能量值最大，其次为捕杀高原鼢鼠，而捕杀根田鼠后单位时间内活动的能量值最小。

This paper includes four chapters,the first part is an introduction,the second part is concerned with the state of construct and improvement about the predator-prey sys-tem,the third part is concerned with the state of research about the predator-prey system. Some new directions of predator-prey system are introduced in brief in the fourth part.

本文共分四部分：第一部分是引言；第二部分介绍了捕食者-食饵系统的建立和发展现状；第三部分系统的阐述了捕食者-食饵系统的研究情况；第四部介绍了捕食系统的一些其它的研究方向。

There are many ways that a mutualist may affect a predator-prey interaction, but here we consider just one of these, we consider cases in which a mutualist modifies predation to the benefit of the prey, namely a mutualist deterring predation on a prey.

互助者的介入对捕食-食饵系统可能产生各种各样的影响，这里，我们所考虑的只是其中的一种情况：互助者的存在对捕食者有威慑作用，从而不利于其对食饵种群的捕获，同时，食饵种群的存在又可以提高互助者的平均增长率。

Effects of transgenic Bt rice on predation and prey preference of wolf spider Pirata subpiraticus Function responses of spiders fed Bt prey or control prey both followed the Holling type.Ⅱ.

九、转Bt基因水稻对拟水狼蛛捕食功能反应和猎物选择性的影响以不同食料喂饲的两种拟水狼蛛对褐飞虱的捕食功能反应都符合Holling Ⅱ型反应。

The jaguar may suffer from declining prey populations caused by humans because of predator/prey relationships in Neotropical environments and jaguar dependence on Neotropical prey species.

在新热带界环境中，美洲虎由于依赖特定猎物而较大程度地受到人类引起的猎物种群下降之影响，但美洲狮由于可以偏向利用小型猎物或猎物多样化而得到补偿，从而能更好地适应人类的影响。

We also conclude that the equilibrium of the prey population will be enlarged due to the Allee effect of the predator, but the Allee effects of the prey may decrease the equilibrium value of the predator, or that of both the predator and prey.

如果捕食者受Allee效应的影响，则猎物种群在平衡点的密度将增大；但是猎物的Allee效应将同时减小捕食者和猎物在平衡点的密度，或者减少捕食者在平衡点的密度。

As when a Vultur on Imaus bred, Whose snowie ridge the roving Tartar bounds, Dislodging from a Region scarce of prey To gorge the flesh of Lambs or yeanling Kids On Hills where Flocks are fed, flies toward the Springs [ 435 ] Of Ganges or Hydaspes, Indian streams; But in his way lights on the barren Plaines Of Sericana, where Chineses drive With Sails and Wind thir canie Waggons light: So on this windie Sea of Land, the Fiend [ 440 ] Walk'd up and down alone bent on his prey, Alone, for other Creature in this place Living or liveless to be found was none, None yet, but store hereafter from the earth Up hither like Aereal vapours flew [ 445 ] Of all things transitorie and vain, when Sin With vanity had filld the works of men: Both all things vain, and all who in vain things Built thir fond hopes of Glorie or lasting fame, Or happiness in this or th' other life; [ 450 ] All who have thir reward on Earth, the fruits Of painful Superstition and blind Zeal, Naught seeking but the praise of men, here find Fit retribution, emptie as thir deeds; All th' unaccomplisht works of Natures hand, [ 455 ] Abortive, monstrous, or unkindly mixt, Dissolvd on earth, fleet hither, and in vain, Till final dissolution, wander here, Not in the neighbouring Moon, as some have dreamd; Those argent Fields more likely habitants, [ 460 ] Translated Saints, or middle Spirits hold Betwixt th' Angelical and Human kinde: Hither of ill-joynd Sons and Daughters born First from the ancient World those Giants came With many a vain exploit, though then renownd: [ 465 ] The builders next of Babel on the Plain Of Sennaar, and still with vain designe New Babels, had they wherewithall, would build

好像一只伊马乌斯山上生长的秃鹫，在雪岭环绕着鞑靼人流浪的地方，食饵的缺乏迫使他们到放牧羊群的诸小山上去，吃饱了羊羔的肉之后，飞向印度恒河或印度河的发源地；途中降落在丝利刻奈的荒野，那儿的中国人用风帆驾驶藤的轻车。魔王如同这鸷禽，独自徘徊在如海洋一样多风的大地上，寻觅食饵。他真觉孤单，因为那里还找不到其他生物，无论是活，是死；只是后来，罪恶用虚荣填满了人的事业，才从地上升起一切虚无缥缈的东西，像飘浮的气体一般升腾到那里：包括一切虚幻的东西，以及所有人，那些把他们的光荣希望、不朽声名、今生来世的幸福都建筑在虚无缥缈上的人们。有些人在今世得了报应，即可悲的迷信和盲目的狂热追求所结的果实，只追求凡人的称赞，和他们的空虚行为相称的酬报，空虚。自然所未完成的工程，流产的、畸形的、乱七八糟混杂在一块儿，在地上消灭了，都飞到这里来，在这里徒然彷徨，直到最后破灭；有些人把梦想寄托在邻近的月球上，那同样是荒谬的。在那银色的世界里，有各种各样的类族：近乎真实的居民，超升的圣者，介乎天使和人类之间的中性精灵；神的众子和人间女子所生的巨人族，首先从古代世界来，当时很出名，还带来了许多空幻的功业。其次是示拿平原上巴别塔的建筑者，他们还有虚空的计划，要是材料有余的话，还要建筑些新的巴别塔。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。