THE FLIGHT OF PIPISTRELLE BATS PIPISTRELLUS-PIPISTRELLUS DURING PREGNANCY AND LACTATION
THE FLIGHT OF PIPISTRELLE BATS PIPISTRELLUS-PIPISTRELLUS DURING PREGNANCY AND LACTATION
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DOI：
10.1111/j.1469-7998.1993.tb02705.x
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发表时间：
1993-08-01
影响因子：
2
通讯作者：
RAYNER, JMV
中科院分区：
文献类型：
--
作者：
HUGHES, P;RAYNER, JMV
一组20伏翼蝙蝠被圈养，并允许自由飞行和协会内的飞行室，他们生下并成功地饲养了17个年轻的。利用频闪立体摄影测量法记录了雌鼠在妊娠期、哺乳早期和哺乳后的飞行情况（共重建了153次飞行）。在调查期间，由于繁殖条件，体重发生了变化，在整个研究期间，每天记录所有（成年和幼年）蝙蝠的体重变化，从最后一次出生前两周开始，直到最大的婴儿43天大时被释放。所有的蝙蝠都被单独标记，并进行了详细的形态测量。怀孕和哺乳期后的蝙蝠比哺乳期蝙蝠重，表现出最低的翅拍频率。怀孕、哺乳和哺乳后蝙蝠的飞行速度没有显着差异，这可能是因为怀孕蝙蝠似乎比其他两个繁殖组或以前研究的动物有更广泛的选择飞行速度的范围。蝙蝠作为一个整体，随着它们质量的增加，飞行速度降低（缩放为M（-0.43）），翅膀拍打频率增加（缩放为M（-0.58））。翼拍振幅与体重、翼面积、翼展、飞行速度、频率无关。根据试验结果和最佳飞行条件建立了一个飞行性能模型，预测了稳定飞行时的运输费用和机械功率，并与观测值进行了比较。
A group of 20 pipistrelle bats were taken into captivity and allowed free flight and association within a flight room where they gave birth to and successfully reared 17 young. The flight of the females was recorded during pregnancy, early lactation and post-lactation by using stroboscopic stereophotogrammetry (153 flights reconstructed in total). During the investigation body mass was altering owing to reproductive condition, and changes in mass were recorded daily for ail (adult and juvenile) bats during the entire study period, which lasted from two weeks before the last birth until release, when the oldest baby was 43 days old. All bats were individually marked, and detailed morphological measurements were made. Pregnant and post-lactating bats were heavier than lactating bats, which showed the lowest wingbeat frequencies. The flight speeds of pregnant, lactating and post-lactating bats showed no significant differences, and this may be because the pregnant bats appeared to have a wider scope for selecting flight speed than the other two reproductive groups, or than animals studied previously. The group of bats as a whole decreased flight speed (scaling as M(-0.43)) and increased wingbeat frequency (scaling as M(-0.58)) as their mass increased. Wingbeat amplitude showed no relation to body mass, wing area or span, flight speed or frequency. A flight performance model applied to the experimental results and optimum flight conditions is used to predict cost of transport and mechanical power far steady flight, and equilibrium wingbeat amplitude which is compared with observations.