THE ROLE OF PINNA MOVEMENT FOR THE LOCALIZATION OF VERTICAL AND HORIZONTAL WIRE OBSTACLES IN THE GREATER HORSESHOE BAT, RHINOLOPUS-FERRUMEQUINUM
THE ROLE OF PINNA MOVEMENT FOR THE LOCALIZATION OF VERTICAL AND HORIZONTAL WIRE OBSTACLES IN THE GREATER HORSESHOE BAT, RHINOLOPUS-FERRUMEQUINUM
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DOI：
10.1121/1.397183
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发表时间：
1988-11-01
影响因子：
2.4
通讯作者：
SCHNITZLER, HU
中科院分区：
文献类型：
--
作者：
MOGDANS, J;OSTWALD, J;SCHNITZLER, HU
六只菊头菊被训练飞过一系列垂直或水平的电线。避障性能以蝙蝠未接触电线（成功飞行）的飞行百分比来衡量。具有正常活动耳廓的蝙蝠在垂直和水平线飞行中的成功率在 70% 到 90% 之间。通过切断运动神经和耳部肌肉来手术固定耳廓后，垂直线（水平目标定位）的回避性能没有变化，但水平线（垂直目标定位）的成功飞行百分比显着下降。这证明了耳廓运动对于垂直平面中目标定位的重要性，并支持了马菊菊头蝠使用耳廓扫描运动来确定目标角度的假设。
Six Rhinolophus ferrumequinum were trained to fly through an array of vertical or horizontal wires. Obstacle avoidance performance was measured as the percentage of flights in which the bats did not touch the wires (successful flights). Bats with normal mobile pinnae scored between 70% and 90% successful flights both with vertical and horizontal wires. After surgically immobilizing the pinnae by cutting motor nerves and ear muscles, avoidance performance with vertical wires (horizontal target localization) was unchanged but the percentage of successful flights the horizontal wires (vertical target localization) decreased significantly. This demonstrates the importance of pinna movements for target localization in the vertical plane and supports the hypothesis that scanning movements with pinnae are used by Rhinolophus ferrumequinum for determination of target angle.