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Same length different shapes: ants collectively choose a straight foraging path over a bent one

机译:长度相同形状不同:蚂蚁集体选择弯曲的觅食路径而不是弯曲的觅食路径

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摘要

In socials insects, exploration is fundamental for the discovery of food resources and determines decision-making. We investigated how the interplay between the physical characteristics of the paths leading to food sources and the way it impacts the behaviour of individual ants affects their collective decisions. Colonies of different sizes of Lasius niger had access to two equal food sources through two paths of equal length but of different geometries: one was straight between the nest and the food source, and the other involved an abrupt change of direction at the midway point (135°). Both food sources were discovered simultaneously, but the food source at the end of the straight path was preferentially exploited by ants. Based on experimental and theoretical results, we show that a significantly shorter duration of nestbound travel on the straight path, which rapidly leads to a stronger pheromone trail, is at the origin of this preference.
机译:在社交昆虫中,探索是发现食物资源的基础,并决定决策。我们调查了导致食物来源的路径的物理特征之间的相互影响及其对单个蚂蚁行为的影响如何影响他们的集体决策。不同大小的Lasius niger的殖民地可以通过两条长度相等但几何形状不同的路径获得两个相等的食物来源:一个在巢穴和食物来源之间是笔直的,另一个则在中点突然改变方向( 135°)。两种食物来源同时被发现,但是直线路径末端的食物来源优先被蚂蚁利用。根据实验和理论结果,我们发现,在直线路径上套路旅行的持续时间明显缩短,这迅速导致了更强的信息素踪迹,正是这种偏好的起源。

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