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タイトル: | Spatial positioning of individuals in a group of feral horses: a case study using drone technology |
著者: | Inoue, Sota Yamamoto, Shinya https://orcid.org/0000-0002-7556-6151 (unconfirmed) Ringhofer, Monamie Mendonça, Renata S. Pereira, Carlos Hirata, Satoshi https://orcid.org/0000-0002-1026-6270 (unconfirmed) |
著者名の別形: | 井上, 漱太 山本, 真也 平田, 聡 |
キーワード: | Drone Horse Nearest neighbor Repulsion and attraction Spatial position Social relationship |
発行日: | Apr-2018 |
出版者: | Springer Nature |
誌名: | Mammal Research |
巻: | 64 |
号: | 2 |
開始ページ: | 249 |
終了ページ: | 259 |
抄録: | 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. |
著作権等: | This is a post-peer-review, pre-copyedit version of an article published in Mammal Research. The final authenticated version is available online at: http://dx.doi.org/10.1007/s13364-018-0400-2. The full-text file will be made open to the public on 6 October 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/240619 |
DOI(出版社版): | 10.1007/s13364-018-0400-2 |
出現コレクション: | 学術雑誌掲載論文等 |
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