图 书 馆
蝎子和蜘蛛Scorpions and Spiders |
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| 课程网址: | http://opencontent.uct.ac.za/Science/Scorpions-and-Spiders |
| 主讲教师: | Engelbrecht, Ian ; Neary, Tim |
| 开课单位: | 开普敦大学 |
| 开课时间: | 2014-09-12 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | In this radio broadcast, Ian Engelbrecht discusses scorpions in Southern Africa. Southern Africa has the most diverse population of scorpions in the world, with 150 described species, with an estimated 400 species within the region, ranging from some of the largest to the smallest and the most and least dangerous. Ian discusses mating patterns, including mating dances and placating behaviour. Many scorpions give birth to live young, and can have between 6 and several hundred young, with females showing strong maternal behaviour. Also discussed are the role of scorpions in arid regions as both predators and food sources. Citizen scientists can contribute by sending in scorpion photographs to enhance the accuracy of current population studies. Image provided courtesy of Magnus Manske under a Creative Commons Attribution-Share Alike 2.0 Germany. |
| 关 键 词: | 有毒的蝎子; 刺; 交配行为 |
| 课程来源: | 开普敦大学公开课 |
| 最后编审: | 2018-12-08：wxi |
| 阅读次数: | 13 |