The choreography of learning walks in the Australian jack jumper ant Myrmecia croslandi
The choreography of learning walks in the Australian jack jumper ant Myrmecia croslandi
复制标题
DOI：
10.1242/jeb.185306
复制
发表时间：
2018-10-01
影响因子：
2.8
通讯作者：
Zeil, Jochen
中科院分区：
文献类型：
--
作者：
Jayatilaka, Piyankarie;Murray, Trevor;Zeil, Jochen
我们提供了一个详细的分析Myrmcroslandi蚂蚁在巢中，在此期间，他们获得的视觉信息，其位置的学习行走。12只单独标记的幼稚蚂蚁的大多数学习行走发生在早上，前两次学习行走之间有一个狭窄的时间窗口，这两次学习行走通常发生在同一天。天真的蚂蚁在外出觅食之前连续四天进行两到七次散步。在随后的行走中，幼稚的蚂蚁倾向于以新的罗盘方向探索巢穴周围的区域。在学习行走的过程中，蚂蚁沿着围绕巢穴的沿着移动，同时进行振荡扫描运动。在一个有规律的时间序列中，蚂蚁的目光在巢穴方向和指向远离巢穴的方向之间振荡。因此，蚂蚁从巢穴周围系统地间隔开的Vantage位置经历了一系列大致横跨巢穴和远离巢穴的视图。此外，我们表明，蚂蚁离开巢觅食之旅往往走在一个弧形的巢周围的相对侧的预期觅食方向，执行扫描程序的学习步行没有区别。这些部分学习行走是由巢穴周围的干扰触发的，可能有助于返回的蚂蚁在越过巢穴时重新定向，它们经常这样做。我们讨论了什么是已知的学习走在不同的蚂蚁物种和他们的适应意义，获得强大的导航记忆。
We provide a detailed analysis of the learning walks performed by Myrmecia croslandi ants at the nest during which they acquire visual information on its location. Most learning walks of 12 individually marked naive ants took place in the morning with a narrow time window separating the first two learning walks, which most often occurred on the same day. Naive ants performed between two and seven walks over up to four consecutive days before heading out to forage. On subsequent walks, naive ants tend to explore the area around the nest in new compass directions. During learning walks, ants move along arcs around the nest while performing oscillating scanning movements. In a regular temporal sequence, the ants' gaze oscillates between the nest direction and the direction pointing away from the nest. Ants thus experience a sequence of views roughly across the nest and away from the nest from systematically spaced vantage points around the nest. Further, we show that ants leaving the nest for a foraging trip often walk in an arc around the nest on the opposite side to the intended foraging direction, performing a scanning routine indistinguishable from that of a learning walk. These partial learning walks are triggered by disturbance around the nest and may help returning ants with reorienting when overshooting the nest, which they frequently do. We discuss what is known about learning walks in different ant species and their adaptive significance for acquiring robust navigational memories.