鸟类

The sequence analyzing revealed that a sequence with a total length of 861 bp including 842 bp nucleotides of ATPase8 ATPase6 gene and partial sequence of the mitochondria CO Ⅱ was cloned. The ATPase8 and ATPase6 genes of Columba livia were proved to have good homology(88.1%~75.0%) with the other 5 species of birds recorded in the GenBank and it has 88.1% and 86.5% homology with Streptopelia orientalis.

结果表明：克隆得到了家鸽ATPase8-ATPase6基因842 bp及COII的部分序列共861 bp，用DNA分析软件对家鸽ATPase8和ATPase6基因与Genbank中的5种鸟类的ATPase8和ATPase6基因序列进行比较分析，表明家鸽与其他5种鸟类的ATPase8和ATPase6基因具有较高的同源性(88.1%~75.0%)，其中与山斑鸡的同源性最高，分别为88.1%和86.5%。

To study the effect of nematode-induced forest succession on avian communities, we chose three forest types at different seral stages, including evergreen broad-leaved coppice infested by the pine wood nematode for five years and evergreen broad-leaved forest infested for 12 years, both from Xiangshan County, Zhejiang, and one 40-year-old evergreen broad-leaved forest from Tiantong National Forest Park, Zhejiang.

为了探讨在松材线虫侵袭所引起的森林演替过程中植被结构变化对鸟类群落的影响，我们研究了这此常绿阔叶演替林中的鸟类群落结构。2004年5-6月，我们在浙江省宁波市选择了分别处于3个不同演替阶段的7个样地：包括象山县被松材线虫侵袭5年后的常绿阔叶灌丛和侵袭12年后的常绿阔叶林样地各3个，同时在天童国家级森林公园选择了约40龄的常绿阔叶林样地1个。

A novel method that can identify moving status of birds accurately was proposed. The method can search the cross correlation coefficient of two neighboring high- resolution range profiles with advance-retreat method in spectrogram, based on the principal of generating micro-Doppler effects with the frequency-stepped chirp radar and characteristics of birds.

基于线性调频步进体制雷达微多普勒效应的产生原理，在距离一慢时间谱图上，针对鸟类目标特性，通过对精高分辨距离像进行分析，提出了一种利用进退法搜索相邻精高分辨距离像的互相关系数的方法来判别鸟类目标运动状态。

In particular, the morphology and distribution of the feathers on Liaoning dromaesaurids, among other features, strongly suggest that dromaeosaurids might have been able to parachute or even glide, representing a group of transitional animals between the cursorial non-avian theropods and volant birds.

尤其重要的是，通过分析辽宁奔龙类化石保存的羽毛形态和分布情况，本文认为这些动物可能具有降落甚至滑翔能力，它们代表地栖的非鸟类兽脚类恐龙和会飞的鸟类之间的过渡类型。

The northern mountainous region is important breeding area, and the western plain is alleyway and dak of birds when they migrate.

吉林省东部山地是我国鸟类重要的繁殖地，而西部平原则是鸟类迁徙的通道和驿站。

The diagnostic features for the species include deep excavation on the posteroventral margin of the premaxilla, a diastema between the premaxillary and maxillary teeth, a a number of many pits and ridges on the anterolateral surface of the antorbital fossa, the posterolateral process of the parietal being long and sharply posteriorly directed, the column ar -like margin of the pterygoid process of the quadrate, the bifurcated posterior margin of the dentary, a distinctive groove posterior to the anterior carina on the medial surface of the premaxillary tooth crowns, absence of ventrolateral processes on intercentrum of t he atlas, T-shaped centrum of the first caudal in ventral view, transverse process on anterior caudals with rounded , and strongly anteroposteriorly expanded distal end, presence of two fossae separated by an oblique ridge on the lateral side of the anterior chevrons near the articular end, and pubis strongly curved psoteriorly.

这一属种的主要鉴定特征包括：前上颌骨后腹缘有一深凹、前上颌齿和上颌齿之间有一齿缺、眶前窝外表面前部有许多坑窝和脊、顶骨侧后突伸向后方、方骨的翼骨支边缘柱状、靠近前上颌齿齿冠舌面前缘有槽、环椎间椎体外腹突缺失、第一尾椎椎体腹视 T 形、前部尾椎横突远端前后向强烈扩展呈圆形、前部脉弧近端外侧面有两个被一斜脊分离的窝以及耻骨强烈向后弯曲。通过分析千禧中国鸟龙的96个骨骼学特征，发现其中21个特征支持奔龙类与鸟类的亲缘关系最近，9个特征支持奔龙类与伤齿龙类亲缘关系最近，25个特征支持奔龙类、伤齿龙类和鸟类亲缘关系较为接近。

The 'Dinosaur-trees-down' hypothesis, which combines the dinosaurian origin of birds and the arboreal hypothesis of avian flight, is thus well collaborated.

恐龙下树的假说结合了鸟类起源于恐龙的学说和鸟类飞行的树栖起源学说，因此也得到了化石证据的支持。

The dinosaurian origin of birds had gained broad support since the resemblance between birds and theropods was first recognized by Huxley (1868) and other paleontologists.

自从鸟类和兽脚类恐龙之间存在相似之处在1868年得到赫胥黎和其他的古生物学家的首次公认以来，鸟类的恐龙起源便获得了广泛的支持。

All parts of the circuit were analyzed in detail, the parameters of some circuit were calculated, the control-circuit of bird dispeller at airport was simulated by the software of Multisim to verify the feasibility of the circuit.

本设计对机场鸟类驱赶器的各个电路进行了详尽的分析，对部分电路的参数进行了计算，并通过Multisim软件对机场鸟类驱赶器的控制电路进行了仿真，以验证电路的可行性。

Such as: all kinds of whales, dolphins, seals, sea lions, dugong and so on. 2, marine reptiles, reptiles body was horny scales, in the land of the cold-blooded animal breeding. 3, marine birds, marine birds in a narrow range, in the China Sea recorded a total of 183 kinds of birds.

各种鲸类、海豚、海豹、海狮、儒艮等。2、海洋爬行动物，爬行动物是体被角质鳞片，在陆上繁殖的变温动物。3、海洋鸟类，海洋鸟类的种类不多，在中国海共记录了183种海鸟。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。