scholarly journals On the absence of a correlation between population size and ‘toolkit size' in ethnographic hunter–gatherers

2018 ◽  
Vol 373 (1743) ◽  
pp. 20170061 ◽  
Author(s):  
Kenichi Aoki
Keyword(s):  
Material Culture ◽  
Population Size ◽  
Cultural Transmission ◽  
Positive Association ◽  
Theoretical Models ◽  
Interdisciplinary Studies ◽  
Apparent Contradiction ◽  
Hunter Gatherers ◽  
Variable Population ◽  
Cultural Gaps

In apparent contradiction to the theoretically predicted effect of population size on the quality/quantity of material culture, statistical analyses on ethnographic hunter–gatherers have shown an absence of correlation between population size and toolkit size. This has sparked a heated, if sometimes tangential, debate as to the usefulness of the theoretical models and as to what modes of cultural transmission humans are capable of and hunter–gatherers rely on. I review the directly relevant theoretical literature and argue that much of the confusion is caused by a mismatch between the theoretical variable and the empirical observable. I then confirm that a model incorporating the appropriate variable does predict a positive association between population size and toolkit size for random oblique, vertical, best-of- K , conformist, anticonformist, success bias and one-to-many cultural transmission, with the caveat that for all populations sampled, the population size has remained constant and toolkit size has reached the equilibrium for this population size. Finally, I suggest three theoretical scenarios, two of them involving variable population size, that would attenuate or eliminate this association and hence help to explain the empirical absence of correlation. This article is part of the theme issue ‘Bridging cultural gaps: interdisciplinary studies in human cultural evolution'.

scholarly journals Technology as Human Social Tradition: 15 Trait-Based Datasets of Hunter-Gatherer Material Culture (Northwest Siberia, Pacific Northwest Coast, Northern California). Data Paper

2021 ◽  
Author(s):  
Peter Jordan
Keyword(s):  
Material Culture ◽  
Pacific Northwest ◽  
Cultural Transmission ◽  
Geographic Region ◽  
Northwest Coast ◽  
Northern California ◽  
Hunter Gatherers ◽  
Pacific Northwest Coast ◽  
Depth Analysis ◽  
Social Tradition

How are particular material culture traditions passed from one generation to the next? The digital archive supports "Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers" (Jordan 2015) published by University of California Press. The archive consists of 15 Excel files which were used to conduct in-depth analysis of the factors driving diversity and change in material culture traditions. Each file contains a high-resolution survey of the design features of one material tradition practised by groups living in a geographic region. Three regions are investigated: Northwest Siberia (storage platforms shrines, skis); Pacific Northwest Coast of Canada (houses, canoes, basketry-matting); Northern California (basketry, houses, ceremonial dress).

scholarly journals Cultural transmission in an ever-changing world: trial-and-error copying may be more robust than precise imitation

2018 ◽  
Vol 373 (1743) ◽  
pp. 20170050 ◽  
Author(s):  
Noa Truskanov ◽  
Yosef Prat
Keyword(s):  
Cultural Evolution ◽  
Cultural Transmission ◽  
Interdisciplinary Studies ◽  
Social Transmission ◽  
Trial And Error ◽  
Learning Mechanisms ◽  
Ecological Changes ◽  
The Social ◽  
Actual Environment ◽  
Cultural Gaps

Cultural transmission facilitates the spread of behaviours within social groups and may lead to the establishment of stable traditions in both human and non-human animals. The fidelity of transmission is frequently emphasized as a core component of cultural evolution and as a prerequisite for cumulative culture. Fidelity is often considered a synonym of precise copying of observed behaviours. However, while precise copying guarantees reliable transmission in an ideal static world, it may be vulnerable to realistic variability in the actual environment. Here, we argue that fidelity may be more naturally achieved when the social learning mechanisms incorporate trial-and-error; and that the robustness of social transmission is thereby increased. We employed a simple model to demonstrate how culture that is produced through exact copying is fragile in an (even slightly) noisy world. When incorporating a certain degree of trial-and-error, however, cultures are more readily formed in a stochastic environment and are less vulnerable to rare ecological changes. We suggest that considering trial-and-error learning as a stabilizing component of social transmission may provide insights into cultural evolution in a realistic, variable, world. This article is part of the theme issue ‘Bridging cultural gaps: interdisciplinary studies in human cultural evolution’.

scholarly journals Keeping the Frontier: Steps “Towards Neolithization” in the Eastern Gulf of Finland

2021 ◽  
Vol 7 (1) ◽  
pp. 1244-1257
Author(s):  
Dmitriy V. Gerasimov
Keyword(s):  
Material Culture ◽  
Iron Age ◽  
Driving Forces ◽  
Cultural Development ◽  
Gulf Of Finland ◽  
Forest Zone ◽  
Hunter Gatherers ◽  
Sociocultural Development ◽  
The Face ◽  
Early Farming

Abstract This article is an attempt to understand the driving forces behind the process of Neolithization in the Eastern Europe Forest zone, where the consumption economy existed till the Bronze or even till the Early Iron Age. Main peculiarities of the sociocultural development in the eastern part of the Gulf of Finland region (EGF) on the transition from Mesolithic to farming societies (sixth – first ka. BC) are discussed in relation to the changes in material culture, subsistence strategy, communication system and settlement pattern. The process of neolithization lasted there for several thousand years. Overview of the dynamics of the social and cultural development in the region revealed several phases of substantial changes in archeological materials (presumably reflecting considerable sociocultural changes). These changes happened later than in the neighboring territories and were preceded by dramatic environmental transformations that affected prehistoric communities in the coastal zone. For the population of the region, innovations could be considered as not “steps toward,” but “retreat in the face of” neolithization. Resistance of the population of EGF to the innovations could be based on environmental conditions that were extremely favorable for hunter–gatherers’ subsistence, but made farming (especially early farming) rather risky.

scholarly journals Variation is the universal: making cultural evolution work in developmental psychology

2018 ◽  
Vol 373 (1743) ◽  
pp. 20170059 ◽  
Author(s):  
Michelle Ann Kline ◽  
Rubeena Shamsudheen ◽  
Tanya Broesch
Keyword(s):  
Cultural Evolution ◽  
Developmental Psychology ◽  
Population Level ◽  
Interdisciplinary Studies ◽  
Cultural Research ◽  
Cross Cultural Research ◽  
Cultural Evolutionary ◽  
Geographical Scope ◽  
Cultural Gaps

Culture is a human universal, yet it is a source of variation in human psychology, behaviour and development. Developmental researchers are now expanding the geographical scope of research to include populations beyond relatively wealthy Western communities. However, culture and context still play a secondary role in the theoretical grounding of developmental psychology research, far too often. In this paper, we highlight four false assumptions that are common in psychology, and that detract from the quality of both standard and cross-cultural research in development. These assumptions are: (i) the universality assumption , that empirical uniformity is evidence for universality, while any variation is evidence for culturally derived variation; (ii) the Western centrality assumption , that Western populations represent a normal and/or healthy standard against which development in all societies can be compared; (iii) the deficit assumption , that population-level differences in developmental timing or outcomes are necessarily due to something lacking among non-Western populations; and (iv) the equivalency assumption , that using identical research methods will necessarily produce equivalent and externally valid data, across disparate cultural contexts. For each assumption, we draw on cultural evolutionary theory to critique and replace the assumption with a theoretically grounded approach to culture in development. We support these suggestions with positive examples drawn from research in development. Finally, we conclude with a call for researchers to take reasonable steps towards more fully incorporating culture and context into studies of development, by expanding their participant pools in strategic ways. This will lead to a more inclusive and therefore more accurate description of human development. This article is part of the theme issue ‘Bridging cultural gaps: interdisciplinary studies in human cultural evolution’.

scholarly journals On Vastness and Variability: Cultural Transmission, Historicity, and the Paleoindian Record in Eastern South America

2015 ◽  
Vol 87 (2) ◽  
pp. 1239-1258 ◽  
Author(s):  
ASTOLFO G.M. ARAUJO
Keyword(s):  
Population Structure ◽  
South America ◽  
Material Culture ◽  
Cultural Transmission ◽  
Raw Material ◽  
Cultural Norms ◽  
South American ◽  
Human Occupation ◽  
Cultural Traditions ◽  
Early Human

Eastern South America, or what is today Brazilian territory, poses interesting questions about the early human occupation of the Americas. Three totally distinct and contemporaneous lithic technologies, dated between 11,000 and 10,000 14C BP, are present in different portions of the country: the Umbu tradition in the south, with its formal bifacial industry, with well-retouched scrapers and bifacial points; the Itaparica tradition in the central-west / northwest, totally unifacial, whose only formal artifacts are limaces; and the "Lagoa Santa" industry, completely lacking any formal artifacts, composed mainly of small quartz flakes. Our data suggests that these differences are not related to subsistence or raw-material constraints, but rather to different cultural norms and transmission of strongly divergent chaînes opératoires. Such diversity in material culture, when viewed from a cultural transmission (CT) theory standpoint, seems at odds with a simple Clovis model as the origin of these three cultural traditions given the time elapsed since the first Clovis ages and the expected population structure of the early South American settlers.

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