田鼠

Scientists found that the montane vole had a short version of the vasopressin receptor gene, and the monogamous one had a long version of it.

科学家们发现，那些山地的田鼠有一个较短样式的垂体后叶荷尔蒙接收基因，而那些单配型的田鼠的垂体后叶荷尔蒙接收基因样式较长。

However, another vole, a close relative called the montane vole, has no interest in partnership beyond one-night-stand **.

然而，另一种被称作山区田鼠的，作为草原田鼠近亲，除了**之外，它们对稳定的伴侣关系毫无兴趣。

However, he came and paid his visit dressed in his black velvet coat."He is very rich and learned, and his house is twenty times larger than mine," said the field-mouse. He was rich and learned, no doubt, but he always spoke slightingly of the sun and the pretty flowers, because he had never seen them.

他穿着黑天鹅绒袍子来拜访了，田鼠说，他是怎样有钱和有学问，他的家也要比田鼠的大20倍；他有很高深的知识，不过他不喜欢太阳和美丽的花儿；而且他还喜欢说这些东西的坏话，因为他自己从来没有看见过它们。

Habitat utilization of root vole was studied in the region of Haibei Alpine Meadow Ecosystem Research Station, the Chinese Academy of Sciences, from July to September of 2002 and 2003. Three indexes of activity intensities, runway length, runway branch number and burrow entrance number were used to estimate root vole's utilization intensities on four types of habitats, manual cultivated land, true meadow, swamp meadow and Dasiphora fruticosa shrub.

为研究根田鼠对不同类型栖息地的利用强度，于2002-2003年的7-9月在中国科学院海北高寒草甸生态系统定位站地区采用样方法测定了4种类型栖息地（人工耕作地、真草甸、沼泽化草甸、金露梅灌丛）中的3个根田鼠活动强度变量（跑道长度、跑道分叉数、洞口数）。

The mammalian genus Microtus provides an excellent model for investigating the evolution of social behaviour.

属于这一类的动物包括草原田鼠，但与其密切相关的草地田鼠则属于占绝大多数的多配型社会结构类别，即一雄多雌或一雌多雄。

Any of various rodents of the genus Microtus and related genera, resembling rats or mice but having a shorter tail and limbs and a heavier body.

田鼠，仓鼠一种田鼠属和有关属的啮齿动物，象老鼠或耗子但有较短的尾巴和较重的身体

We studied responses of populations of Microtus ochrogaster and M. pennsylvanicus in east-central Illinois, USA to supplemental food in intermediate and low food habitats. Whereas amplitudes of fluctuation of M.

本研究在美国伊利诺斯州中东部测定了中等食物质量和低食物质量栖息地内橙腹田鼠和草原田鼠(M.pennsylvanicus)种群对附加食物的响应。

We conducted removal experiments in open populations of Microtus ochrogaster and M.pennsylvanicus to test for potential interspecific competition between coexisting populations in bluegrass and tallgrass prairie in east-central IL, USA.

我们对美国伊利诺斯州中东部的蓝草和高草牧场共生的橙腹田鼠和草原田鼠开放种群进行了去除实验，以测定潜在的种间竞争。

The mate choice of Brandt′s voles Microtus brandti was investigated in the laboratory to study the mating system of this species. It was found that the female voles spent significantly more time visiting the partners than the strange males, but the male voles did not show any preference of the partners to the strange females. A female vole showed no difference in the copulatory behavior between an unfamiliar male and a familiar male which had copulated with her for 15 minutes, but she visited and fought the unfamiliar male significantly more than the familiar male. A male vole significantly preferred visiting and mating with an unfamiliar oestrous female to a familiar female which had copulated with him for 15 minutes.

在实验室通过布氏田鼠对配偶与陌生异性鼠、已交配和未交配异性鼠、熟悉和陌生异性鼠三种情况下配偶选择的实验研究，结果表明：雌性布氏田鼠对配偶的选择显著地要多于陌生雄鼠；虽然对陌生和熟悉雄鼠选择差异不显著，但对陌生鼠的选择强度要高于熟悉雄鼠；同时对已交配和未交配雄鼠的选择无显著差异。

Related species, like the field vole, lose weight and die earlier when they eat these poisons, but Susanna Saari found that the Southern voles seem to be immune.

相近的种类，比如普通田鼠，如果吃了这些毒素，则会体重减轻，更早死亡，但是苏珊娜·萨利发现南部田鼠似乎具有免疫力。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。