Coordinating compass-based and nest-based flight directions during bumblebee learning and return flights
Coordinating compass-based and nest-based flight directions during bumblebee learning and return flights
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DOI：
10.1242/jeb.081463
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发表时间：
2013-03-01
影响因子：
2.8
通讯作者：
Philippides, Andrew
中科院分区：
文献类型：
--
作者：
Collett, Thomas S.;de Ibarra, Natalie Hempel;Philippides, Andrew
当大黄蜂在离开时了解巢穴的位置，并在觅食后接近时找到巢穴时，它们倾向于在有限的罗盘方向范围内面对巢穴。因此，在学习和返程飞行中，它们对鸟巢及其周围环境的看法是相似的。蜜蜂如何协调它们的飞行相对于基于巢和罗盘的参考框架，以获得如此相似的观点？首先，我们展示了学习和返程飞行包含沿着特定罗盘方向的直线段，这与蜜蜂身体的方向无关。因此，蜜蜂可以在一定范围内自由地调整它们相对于巢的观察方向，而不会干扰飞行方向。其次，我们研究了在这些飞行的可能信息收集部分中基于巢和基于罗盘的控制的协调：在学习飞行期间的循环和在返回飞行时的之字形。我们发现，蜜蜂在罗盘方向的限定范围内飞行时，往往会开始一个环形或之字形的飞行，在罗盘方向发生固定的变化后，蜜蜂就会飞向蜂巢并面对蜂巢，而它们基于巢的飞行方向和基于罗盘的飞行方向之间没有持续的相互作用。在一个主题的过程中，基于罗盘的首选飞行轨迹，加上蜜蜂保持身体朝向巢穴的倾向，自动缩小了蜜蜂观察巢穴的罗盘方向范围。此外，两个参考框架之间缺乏相互作用，使得循环和之字形具有刻板的形式，可以产生信息视觉反馈。
Bumblebees tend to face their nest over a limited range of compass directions when learning the nest's location on departure and finding it on their approach after foraging. They thus obtain similar views of the nest and its surroundings on their learning and return flights. How do bees coordinate their flights relative to nest-based and compass-based reference frames to get such similar views? We show, first, that learning and return flights contain straight segments that are directed along particular compass bearings, which are independent of the orientation of a bee's body. Bees are thus free within limits to adjust their viewing direction relative to the nest, without disturbing flight direction. Second, we examine the coordination of nest-based and compass-based control during likely information gathering segments of these flights: loops during learning flights and zigzags on return flights. We find that bees tend to start a loop or zigzag when flying within a restricted range of compass directions and to fly towards the nest and face it after a fixed change in compass direction, without continuous interactions between their nest-based and compass-based directions of flight. A preferred trajectory of compass-based flight over the course of a motif, combined with the tendency of the bees to keep their body oriented towards the nest automatically narrows the range of compass directions over which bees view the nest. Additionally, the absence of interactions between the two reference frames allows loops and zigzags to have a stereotyped form that can generate informative visual feedback.