Balasingh J, Suthakar Isaac S, Singaravel M, Gopukumar Nair N, Subbaraj R
Department of Animal Behaviour and Physiology, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India.
Behav Processes. 1998 Jul;44(1):45-9. doi: 10.1016/s0376-6357(98)00032-1.
The onset and duration of parturition were studied in Megaderma lyra for two successive periods during the years 1989 and 1990. The period of parturition fell between January and May in 1989, and between March and May in 1990. This change in the length of parturition period was not due to variations in the pattern of rainfall when prey items are abundant. The young M. lyra clung continuously for 5-7 days from birth to their mothers whose foraging modality seemed unaffected. Grown-up infants were left at a temple roost while the mother bats foraged. On a few occasions, mothers and infants were also seen at different `night roosts' found close to the temple roost. In all stages of nursing, the lactating mothers had two distinct bouts of foraging, one immediately following emergence (at dusk) and the other during their return (at predawn hours) to their main roost. The mean lactation period in M. lyra was approximately 70 days.
在1989年和1990年期间，对皱唇蝠连续两个时期的分娩开始时间和持续时间进行了研究。1989年的分娩期在1月至5月之间，1990年在3月至5月之间。分娩期长度的这种变化并非由于猎物丰富时降雨模式的变化。幼龄皱唇蝠从出生起就连续5至7天紧紧依附在母亲身上，而母亲的觅食方式似乎并未受到影响。成年幼崽被留在寺庙栖息地，而母蝠外出觅食。有几次，还观察到母亲和幼崽在靠近寺庙栖息地的不同“夜栖地”。在哺乳的各个阶段，泌乳的母亲有两个明显的觅食时段，一个是在（黄昏时）刚出现后，另一个是在（黎明前）返回主要栖息地时。皱唇蝠的平均哺乳期约为70天。
