Lateral position preference in grazing feral horses
Lateral position preference in grazing feral horses
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DOI：
10.1111/eth.12966
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发表时间：
2019-10-04
期刊：
影响因子：
1.7
通讯作者：
Hirata, Satoshi
中科院分区：
文献类型：
--
作者：
Inoue, Sota;Yamamoto, Shinya;Hirata, Satoshi
行为偏侧化是动物通过将行为专门化到身体两侧来管理日常任务的有效方法。许多类型的偏侧化与每个大脑半球的功能有关。母婴关系中的监控行为偏侧化发生在广泛的哺乳动物中，婴儿经常使用左眼来监控母亲。然而，很少有研究集中在这种类型的空间关系，在日常生活中，如在觅食的成年人。本研究的重点是监测成年野马的行为，使用定量分析的空间关系，使用无人机技术。我们发现，马与它们最近的邻居形成了一种局部化的空间关系。具体而言，最近的邻居位于目标个体的左后方比右后方更频繁。此外，最近的邻居很少位于目标个体的后面。我们认为这种关系是由左眼偏好引起的，因为通过左眼的信息主要流向右半球，而右半球在社会处理中占主导地位。
Behavioural lateralisation is an effective way for animals to manage daily tasks by specialising behaviour to either side of the body. Many types of lateralisation are linked to the function of each brain hemisphere. Lateralisation of monitoring behaviour in mother-infant relationships occurs in a wide range of mammals, where infants frequently use their left eye to monitor their mother. However, few studies have focused on this type of spatial relationships among adults in daily life, such as during foraging. The present study focused on monitoring adult feral horse behaviour using quantitative analysis of spatial relationships, using drone technology. We found that horses form a localised spatial relationship with their nearest neighbour. Specifically, the nearest neighbour was located to the left rear of a target individual significantly more frequently than to the right rear. Furthermore, the nearest neighbour was less frequently located behind a target individual. We propose that this relationship is caused by a left-eye preference, because information via the left eye predominantly proceeds to the right hemisphere, which is dominant for social processing.