Spatial positioning of individuals in a group of feral horses: a case study using drone technology
Spatial positioning of individuals in a group of feral horses: a case study using drone technology
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DOI：
10.1007/s13364-018-0400-2
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发表时间：
2019-04-01
期刊：
影响因子：
1.5
通讯作者：
Hirata, Satoshi
中科院分区：
文献类型：
--
作者：
Inoue, Sota;Yamamoto, Shinya;Hirata, Satoshi
动物群体中个体的空间定位已经从许多角度进行了研究。然而，虽然许多研究都集中在鸟群和鱼群的空间位置，相对较少的研究已经在哺乳动物中进行了高精度。由于一些哺乳动物物种形成社会，我们想知道一个群体中哺乳动物之间的社会关系如何影响每个个体的空间位置。为了解决这个问题，我们使用无人机在葡萄牙的Serra D' Arga山上获得了一个野马群中个体的准确定位。研究结果表明：（1）男性在社会关系和空间关系中表现出相互独立的特点。本研究是第一个揭示的哺乳动物群体使用无人机技术的空间定位的特点。后宫群位于外围;（2）和其他物种一样，个体也有排斥和吸引的区域;（3）最近的邻居更多地位于两侧，而不是后面或前面。我们还根据梳理频率测量了个体之间的社会关系。社会网络分析的社会关系和空间关系之间的相关性表明，它们是相互独立的。本研究是第一个揭示的哺乳动物群体使用无人机技术的空间定位的特点。
Spatial positioning of individuals in animal groups has been studied from numerous perspectives. However, although many studies have focused on spatial position in flocks of birds and schools of fish, relatively few studies have been conducted in mammals with high accuracy. Because some mammal species form societies, we wondered how social relationships among mammals within a group influence each individual's spatial position. To address this issue, we used drones to obtain accurate positioning of individuals in a feral horse group on the Serra D' Arga mountain in Portugal. The results of our study revealed the following characteristics: (1) the male in between social and spatial relationships indicated that they are independent from each other. The present study is the first to reveal the characteristics of spatial positioning in a mammalian group using drone technology. The harem group was located in the periphery; (2) as in other species, individuals had areas of repulsion and attraction, and (3) nearest neighbors were located more toward the sides than to the back or front. We also measured the social relationships between individuals in terms of grooming frequency. Social network analyses of the correlation between social and spatial relationships indicated that they are independent from each other. The present study is the first to reveal the characteristics of spatial positioning in a mammalian group using drone technology.