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| 镇海棘螈产卵位点及其对繁殖成功率的影响 | |
| 引用本文： | 谢锋,费梁,叶昌媛,王祖望,蔡春抹.镇海棘螈产卵位点及其对繁殖成功率的影响[J].动物学报,2002,48(4):554-557. |
| 作者姓名： | 谢锋 费梁 叶昌媛 王祖望 蔡春抹 |
| 作者单位： | 1. 中国科学院成都生物研究所,成都,610041 2. 中国科学院动物研究所,北京,100080 3. 浙江省自然博物馆,杭州,310012 |
| 基金项目： | 中国科学院知识创新工程项目，国家科技攻关项目，中国科学院知识创新工程项目，中国科学院科研项目，KSCX2-1-03，KZ 951-A1-105，STZ-1-02，，，，， |
| 摘 要： | We studied oviposition sites and their effects on the reproductive success of the Chinhai salamander (Echinotriton chinhaiensis) .The results showed that: (1) the female had strong preferences for spawning sites and oviposition microhabitat; (2) the most suitable oviposition sites were 30 cm higher than water level and 45 cm from the water body; (3) oviposition sites usually overlapped;(4) embryos could develop and hatch normally in water as well as on land. The hatching rate on land was high (94 3%), but the number of hatchlings that successfully migrated to water was low (52%±11%, n =3 in the laboratory, and approximatly 20% in nature). Based on the situation in laboratory, the average hatchling survival rate at all oviposition sites was 36 7%. Owing to oviposition on land, the reproductive success of Chinhai salamander was very low;(5) protecting the spawning sites and increasing the hatchling survival rate are the keys to conserving this species. |
| 关 键 词： | 镇海棘螈 产卵位点 繁殖成功率 |
OVIPOSITION SITES AND THEIR EFFECTS ON THE REPRODUCTIVE SUCCESS IN THE CHINHAI SALAMANDER(ECHINOTRITON CHINHAIENSIS) |
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| Abstract: | |
| Keywords: | Chinhai salamander ( Echinotriton chinhaiensi ) Oviposition site Reproductive success |
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