Taking a goal-centred dynamic snapshot as a possibility for local homing in initially naive bumblebees
Taking a goal-centred dynamic snapshot as a possibility for local homing in initially naive bumblebees
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DOI：
10.1242/jeb.168674
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发表时间：
2018-01-01
影响因子：
2.8
通讯作者：
Egelhaaf, Martin
中科院分区：
文献类型：
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作者：
Lobecke, Anne;Kern, Roland;Egelhaaf, Martin
对于大黄蜂等中心地带的觅食者来说，可靠地返回巢穴至关重要。熊蜂第一次离开它们不显眼的巢穴时，需要收集和了解有关周围环境的足够信息，以便它们能够在旅程结束时返回巢穴，而不是仅仅飞走去觅食。因此，我们假设一个内在的学习程序在第一次离开巢穴后立即在飞行结构中体现出来。在这项研究中，我们记录并分析了室内环境中单独标记的幼稚大黄蜂的第一次出境飞行。我们在飞行模式中发现了典型的环状特征，这似乎是蜜蜂获取环境信息所必需的，并且可能与觅食旅行后寻找巢穴有关。尽管它们的时空组织具有共同特征，但首次从巢穴起飞的飞行的特点是它们的环状飞行结构在动物之间存在高度的可变性。例如，身体方向的转向变化均匀分布在用于飞行的整个区域，与巢位置没有任何系统关系。通过考虑常见的飞行主题和这种可变性，我们得出这样的假设：在以巢穴位置为中心的出发航班的早期阶段拍摄了一种动态快照。假设该快照的质量将在起飞航班的后期阶段对其对于本地归航的有用性进行“测试”。
It is essential for central place foragers, such as bumblebees, to return reliably to their nest. Bumblebees, leaving their inconspicuous nest hole for the first time need to gather and learn sufficient information about their surroundings to allow them to return to their nest at the end of their trip, instead of just flying away to forage. Therefore, we assume an intrinsic learning programme that manifests itself in the flight structure immediately after leaving the nest for the first time. In this study, we recorded and analysed the first outbound flight of individually marked naive bumblebees in an indoor environment. We found characteristic loop-like features in the flight pattern that appear to be necessary for the bees to acquire environmental information and might be relevant for finding the nest hole after a foraging trip. Despite common features in their spatiotemporal organisation, first departure flights from the nest are characterised by a high level of variability in their loop-like flight structure across animals. Changes in turn direction of body orientation, for example, are distributed evenly across the entire area used for the flights without any systematic relationship to the nest location. By considering the common flight motifs and this variability, we came to the hypothesis that a kind of dynamic snapshot is taken during the early phase of departure flights centred at the nest location. The quality of this snapshot is hypothesised to be 'tested' during the later phases of the departure flights concerning its usefulness for local homing.