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. 2019 May 2;9:6856. doi: 10.1038/s41598-019-43313-4

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Behaviour values scored and behaviour index values calculated of an internest one-on-one encounter between Tetramorium alpestre workers of Data Set 2. For each worker, behaviour values are shown for each second; positive values represent aggressive behaviour, negative values peaceful behaviour (see Table 5 for details on the behaviour scale used). For the five behaviour indices Mean Maximum Aggression Index (MMAI), Mean Behaviour Index aggressive (MBI_agg), Aggression Index (AI), Mean Behaviour Index peaceful (MBI_pcf), and Mean Maximum Peace Index (MMPI), values of both workers were averaged. A video and an evaluation file of this encounter are available in the Supplementary Material (Video 1, Evaluation File 1).