栖息

A pale full moon appears through dense clouds and silhouettes a bird roosting on a dead tree in Alaska.

一个苍白的满月显示通过密集的云层和一只鸟的侧面轮廓栖息在一棵死亡的树上在阿拉斯加。

Photo Gallery: The Moon A pale full moon appears through dense clouds and silhouettes a bird roosting on a dead tree in Alaska.

一个苍白的满月显示其在浓厚的云层和侧面轮廓一只鸟栖息在一棵死亡的树上在阿拉斯加州。

We also analyzed the leg bone proportions of 14 species of Mesozoic birds from the Early Cretaceous of China by using ternary diagrams and comparison with 21 specimens of Cenozoic birds, and concluded that the Early Cretaceous enantiornithines are typical arboreal birds, more basal birds from the Mesozoic are mainly arboreal with some adapted for scansorial life, and the ornithurines are characterized by both arboreal and terrestrial adaptations.

在此基础上，对中国中生代14例鸟类的栖息习性进行了分析，利用三元投影的统计方法，并以国内外新生代21例鸟类标本作为对比参考，得出辽西中生代不同类型鸟类的栖息行为特征：基干鸟类以树栖为主要习性，其中个别鸟类还具有攀援的习性，而反鸟类则是典型的树栖鸟类，今鸟类兼有树、地栖的习性。

Through field observations and sampling, by referencing to other documents and information, with correlation analysis and principal component analysis as mathematical tools, we know that: the distribution of the number of birds has close relations with density of zoobenthos and ratio of water area, the correlation coefficient of the distribution and the two factors are 0.916 and 0.745, the density of zoobenthos is the most direct reflection; Vegetation types , the coverage and water level may have relations with the distribution of the kind of birds, normally, middle and large volume birds need high vegetation and high coverage as their habitats, and waterfowl like deep water as their habitats; Human activities have low impact on the the distribution of the number of birds, but the activities have relations with all the other environmental factors.

通过实地的观测、采样，并结合其他文献的资料，以相关分析和主成分分析作为数学工具，得知：鸟类的数量分布和底栖生物密度、水域面积比例有着密切关系，鸟类数量分布与两者的相关系数分别为0.916和0.745，其中，底栖生物密度是鸟类数量分布的最直接反映；植被类型、植被盖度和水位可能与鸟类的种类分布有一定关系，通常体积中、大型的鸟类需要较高的植被高度，来作为自己的栖息场所，水禽需要水位较深的区域作为自己的栖息场所；人为活动对鸟类数量分布的影响不大，但对所有自然环境因子都有一定影响。

This kind of bird inhabits on the top of the trees.

栖息 这种鸟栖息在树的最高处。

In fact, there is not a peak roosting time. The birds roost all year.

实际上，并没有栖息高峰这一回事，鸟儿终年栖息。

Crinoids, ammonoids and bivalves dwelt on the stems and lived on pseudoplanktons. They were gradually deposited on the sea bottom with increasing biomass of the dwelling organisms and lime content, and at last concretions were formed.

海百合、双壳类和菊石类栖息在植物茎干上营假浮游生活，随着栖息生物量和化学沉积物灰泥的增加，逐渐沉积在海底形成结核。

Ningxia Shahu Lake Bird Island area 4247 ha, on the island of habitat for 200 species, more than 100 million birds, the dense reed Sand Lake as a natural habitat for birds, and good breeding ground.

宁夏沙湖鸟岛总面积4247公顷，岛上共栖息着近200种、100 多万只鸟，沙湖茂密的芦苇丛成为鸟类良好的天然栖息和繁衍地。

Like, now we locate province in Guangdong new meeting county wreath city country a day horse village a day horse river on, say the history of this river, before also needing to make track for till more than 300 years ……you now what to see is 1 the very unique big banyan is in the world, and then is become the landscape of"only wood become wood" by people, dwell for rest 1000 up to 100 birds on this tree, and exuberant big banyan also for the birds provided to dwell for rest living ground goodly, bird as happy as a lark living here, is also become "the heaven of bird" by people.

好，现在我们位于广东省新会县环城乡天马村天马河之上，要说这条河的历史，还要追寻到300多年之前……您现在看到的是一棵世界上绝无仅有的大榕树，又被人们成为&独木成林&之景色，这棵树上栖息着成千上百种鸟类，而茂盛的大榕树也为鸟类提供了良好的栖息生活之地，鸟很快乐的生活在这里，也被人们成为&鸟的天堂&。

The quadrat method and animal focus sampling we r e used to study the botanical diversity in the karst habitat and habitat selecti on by white-headed leaf monkey.

通过样方法和焦点动物法分别对白头叶猴栖息环境进行了观察，并对栖息环境的植物多样性进行了统计分析。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。