潮汕蝾螈的求偶行为  

Courtship Behaviour of the Dayang Newt, Cynops orphicus

作　　者：龚宇舟[1,2] 谢锋[1] 

机构地区：[1]中国科学院成都生物研究所,成都610041 [2]中国科学院大学,北京100049

出　　处：《动物学杂志》2016年第6期985-992,共8页Chinese Journal of Zoology

基　　金：国家自然科学基金项目(No.30770316)

摘　　要：潮汕蝾螈（Cynops orphicus）是我国特有的濒危有尾两栖类,繁殖季节始于5月中旬。对其求偶行为观察发现,该螈求偶模式表现出与东方蝾螈（C.orientalis）相似的特点,但雄性扇尾和潜行时间（25-37 s）较东方蝾螈（10-20 s）更长;雄性在一次求偶中多次排精,雌性亦可多次纳精,精子囊形态与东方蝾螈类同;雌性纳精后,雄性反转咬住其腹部,被咬雌性呈现植物态。纳精过后,雌性出现暂时的冷漠或恐惧,不再接受雄性求偶。该螈成功纳精在累次求偶行为中占比不高（2.7%）,但较东方蝾螈（1.1%）成功率高。雄性之间存在求偶过程中的竞争和干扰行为。Dayang Newt （Cynops orphicus） is an endangered species and endemic to China, there′s no any report on its reproductive ecology. The breeding season of Dayang Newt starts in the middle of May, we paired female newt with multiple males in aquariums to observe interaction of them and record duration or frequency of different sexual movements. The sexual behavior of this species resembled that of Chinese Fire-bellied Newt （C. orientalis）, but male C. oriphicus had longer tail-fanning and creeping duration （25﹣37 s） than C. orientalis （10﹣20 s, Table 3）, female might picks up more than one spermatophore if male deposited several in his courtship. The spermatophore shape is similar to C. orientalis. Males bit the belly after her pick-up spermatophore and she remained stationary （Fig. 1d）. Female did not show any interest and even frightened in male once she was inseminated. The successful proportion of spermatophore picking-up was relatively rare （2.7%, Table 2）, but slightly higher than that recorded in C. orientalis （1.1%）. The competitions and interferences behaviors were found from potential male rival during courtship.

关 键 词：潮汕蝾螈 求偶行为 行为模式 精子囊 

分 类 号：Q958[生物学—动物学]