摘要
研究了迷卡斗蟋和短翅鸣螽的行为模式及迷卡斗蟋鸣叫的时间分布。结果表明迷卡斗蟋雄虫单独存在时 ,在一昼夜内其鸣叫的持续时间为 668.38± 1 0 9.86分钟 ( 5 ) ,引入雌虫后鸣叫累计时间减少为 1 7.3± 6.7分钟 ( 5 ) ,并产生音调低沉的求偶声。在昼夜鸣叫活动型式中 ,雄虫单独存在时的鸣叫活动集中于夜间 ;引入雌虫后 ,占区鸣叫、求偶鸣唱和交配行为多集中于白天。根据上述结果提出了机会 -风险平衡假说来解释此现象 ,即白天交配有被捕食的危险 ,雄蟋短期内重复交配以保证精液进入雌蟋体内 ,从而保证了交配的成功 ,补偿了雄蟋所冒风险。短翅鸣螽雄性产生较大的精包 ,当雌体取食精包时 ,精液进入雌体内以保证交配成功。
We report the behavioral and diel calling patterns of two ensiferan species, Velarifictorus micado and Gampsocleis gratiosa. Before the introducing of female, the calling duration by V.micado lasts 668.38±109.86 min(5); after the introducing of female, the diel calling duration declines to 17.3±6.7min(5), and switched to a quieter courtship song. Single male called mainly in the night, however, produce the courtship songs in the daytime after introduction of female. We suggest the opportunity risk trade off hypothesis to explain the phenomenon: most matings of V.micado occur during daytime, at the risk of predation. However, males can mate repeatedly, which guarantees the fertilization to the greatest degree, therefore, increases the mating success of the males. Consequently the reproductive gain presumably outweigh the risks of predation. In contrast, G. gratiosa adopts another tactics, i.e., a male provides a female with a nutritious spermatophylax, the sperm enters the female's reproductive tract while the female consuming the spermatophylax.
出处
《动物学报》
SCIE
CAS
CSCD
1999年第1期49-56,共8页
ACTA ZOOLOGICA SINICA
基金
中国科学院"百人计划"资助
关键词
迷卡斗蟋
短翅鸣螽
行为谱
交配
Velarifictorus micado, Gampsocleis gratiosa, Ethogram, Mating
