Population pressure and prehistoric violence in the Yayoi period of Japan

Nakagawa, Toshimi; Tamura, Keiichi; Yamaguchi, Yuji; Matsumoto, Naoko; Matsugi, Takehiko; Nakao, Hisashi

doi:10.1016/j.jas.2021.105420

Cited by 9 publications

(15 citation statements)

References 32 publications

(43 reference statements)

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“…Carrying-capacity stress increases the probability of between-group competition and conflict [147][148][149][150][151][152]. First, carrying-capacity stress can bind individuals within groups and promote parochial other-concern (α I in equation (3.1); see [153]).…”

Section: (C) Environmental Pressuresmentioning

confidence: 99%

Intergroup conflict: origins, dynamics and consequences across taxa

Dreu

Triki

2022

Phil. Trans. R. Soc. B

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Although uniquely destructive and wasteful, intergroup conflict and warfare are not confined to humans. They are seen across a range of group-living species, from social insects, fishes and birds to mammals, including nonhuman primates. With its unique collection of theory, research and review contributions from biology, anthropology and economics, this theme issue provides novel insights into intergroup conflict across taxa. Here, we introduce and organize this theme issue on the origins and consequences of intergroup conflict. We provide a coherent framework by modelling intergroup conflicts as multi-level games of strategy in which individuals within groups cooperate to compete with (individuals in) other groups for scarce resources, such as territory, food, mating opportunities, power and influence. Within this framework, we identify cross-species mechanisms and consequences of (participating in) intergroup conflict. We conclude by highlighting crosscutting innovations in the study of intergroup conflict set forth by individual contributions. These include, among others, insights on how within-group heterogeneities and leadership relate to group conflict, how intergroup conflict shapes social organization and how climate change and environmental degradation transition intergroup relations from peaceful coexistence to violent conflict. This article is part of the theme issue ‘Intergroup conflict across taxa’.

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Section: (C) Environmental Pressuresmentioning

confidence: 99%

Intergroup conflict: origins, dynamics and consequences across taxa

Dreu

Triki

2022

Phil. Trans. R. Soc. B

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“…To predict likely responses, studies that systematically quantify the relative effect of competing variables among prehistoric populations are necessary, but remain limited. Importantly, both climatic and demographic factors have been shown to influence the frequency and severity of human violence ( 8 – 13 ). The interaction between climate and demography further amplifies these dynamics, as climate change may structure population growth rates and carrying capacity ( 14 – 16 ), and both climatic change and population fluctuations influence per capita resource availability ( 17 , 18 ).…”

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confidence: 99%

Climate change–induced population pressure drives high rates of lethal violence in the Prehispanic central Andes

McCool

Codding

Vernon

et al. 2022

Proc. Natl. Acad. Sci. U.S.A.

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Significance Warfare and homicide are pervasive features of the human experience, yet scholars struggle to understand the conditions that promote violence. Climate and conflict research has revealed many linkages between climate change and human violence; however, studies often produce contrary findings, and the driving mechanisms remain difficult to identify. We suggest a solution is to identify conditions producing resource scarcity, which are necessarily a combination of climate and population dynamics. We examine patterns of lethal violence in the Prehispanic Andes and find that favorable climate conditions fostered rapid population growth within a circumscribed landscape, resulting in chronic warfare. Our work suggests that an increasingly unstable climate may promote future violence, where favorable climate regimes incentivize population growth and attendant resource strain.

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“…Our dataset is composed of 19 jars, all of which are categorized as the Ongagawa-style pottery of the Early Yayoi period (800−300 cal BC, see [ 39 – 41 ]), when rice farming was introduced to the Japanese archipelago from the Korean peninsula [ 42 , 43 ]. The shapes and styles of this pottery are relatively simple and homogeneous.…”

Section: Methodsmentioning

confidence: 99%

A proposal of a new automated method for SfM/MVS 3D reconstruction through comparisons of 3D data by SfM/MVS and handheld laser scanners

et al. 2022

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SfM/MVS photogrammetry has received increasing attention due to its convenience, broadening the range of its applications into archaeology and anthropology. Because the accuracy of SfM/MVS depends on photography, one important issue is that incorrect or low-density point clouds are found in 3D models due to poor overlapping between images. A systematic way of taking photographs solve these problems, though it has not been well established and the accuracy has not been examined either, with some exceptions. The present study aims to (i) develop an efficient method for recording pottery using an automated turntable and (ii) assess its accuracy through a comparison with 3D models made by laser scanning. We recorded relatively simple pottery manufactured by prehistoric farmers in the Japanese archipelago using SfM/MVS photogrammetry and laser scanning. Further, by measuring the Hausdorff distance between 3D models made using these two methods, we show that their difference is negligibly small, suggesting that our method is sufficiently accurate to record pottery.

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Population pressure and prehistoric violence in the Yayoi period of Japan

Cited by 9 publications

References 32 publications

Intergroup conflict: origins, dynamics and consequences across taxa

Intergroup conflict: origins, dynamics and consequences across taxa

Climate change–induced population pressure drives high rates of lethal violence in the Prehispanic central Andes

A proposal of a new automated method for SfM/MVS 3D reconstruction through comparisons of 3D data by SfM/MVS and handheld laser scanners

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