Based on the analysis of the resources situation and problems , it has been suggested by the authors that the protection of ecological environment and species varieties of anura in gansu should be strengthened 本文在对甘肃无尾两栖类动物资源状况及存在的问题进行分析的基础上,提出了加强无尾两栖类动物生境和物种多样性保护,从而合理利用无尾两栖类动物资源的建议。
Acquisitive behavior escape behavior visual barrier avoidance have been described in detail as well as the recognition between the prey and predator . the author has discussed the corresponding area in the frog brain , which has very important function 对两栖类的捕食、逃避、避障的特性作了较为详细的论述:包括猎物与威胁物的识别以及避障过程中对障碍物的识别。
Generally speaking , a possession licence is required to keep any reptile or amphibian listed in the cites appendix ii in hong kong . however , possession licences for some species ( for example , the malayan box turtle ) are waived 一般,在本港管有cites附录ii的爬虫及两栖类动物,均需申领濒危物种管有许可证。然而,有部份物种(如马来闭壳龟)的管有许可证的要求受法例所豁免。
One will be able to take the species home upon successful application the possession licence . hkras , q05 : is a person liable to penalty for purchasing an endangered species without knowing the species is endangered and has not been informed by the trader 假如某人在宠物店购买爬虫类或两栖类动物时,并未知悉该品种乃属濒危物种,而店员又没有向他说明,在无意及无知的情况下,他是否有法律责任?
The author has collected a great deal of valuable materials about frog visual behavior . the visual characteristic of amphibian such as frog has been studied which includes the structure of frogeyes and the retina ganglion cell 本文在收集了有关青蛙视觉大量宝贵资料后,首先分析了青蛙等两栖类动物的视觉特点,其中包括蛙眼的结构,以及在视觉处理初期担任重要角色的视网膜神经元细胞的反应特性。
Founded on this english channel island in 1959 by zoologist gerald durrell , the jersey trust zoo ( now called durrell wildlife ) protects and breeds more than 100 endangered species , including birds , mammals , reptiles , and amphibians 泽西信托动物园(现改名为杜瑞尔野生动物园)位于英吉利海峡的岛上,在1959年由动物学家杰洛德杜瑞尔建立,这里保护饲养着包括鸟类,哺乳类,爬行类和两栖类等在内的100多种濒危动物。
Conducts in english , it is for people to learn about animals and english at the same time . a series of 10 lessons , we talk about general knowledge and understanding of reptiles , amphibians , and arthropods by showing over 15 live animals each time including snakes , lizards , tortoises , turtles , frogs and tarantulas 此系列共有十堂,以动物作活动教材学习英语,同时,在课堂上本会也有教授大量有关爬虫类两栖类及节肢类动物的基本知识个别种类的详细介绍,与及饲养注意事项。
However , because of the huge population and environmental pollution , and uncontrolled deforestation and hunting , the biodiversity in china has been decreasing quickly . about 4500 species of higher plants , 134 species of mammals , 187 species of birds , 17 species of reptilians and 7 species of amphibians are highly endangered or endangered , which is over the wor ld average level 但由于中国人口众多,加之环境污染、历史上的滥伐森林、毁草开荒,滥捕滥猎等人为因素,造成中国生物多样性数量不断减少,全国濒危和受威胁的高等植物种数约4500种,兽类134种,鸟类182种,爬行类17种,两栖类7种,高于世界平均水平。