Found 134 Documents across 14 Pages (0.002 seconds)
  1. Periodic catastrophes over human evolutionary history are necessary to explain the forager population paradoxGurven, Michael D. - Proceedings of the National Academy of Sciences of the United States of America, 2019 - 5 Hypotheses

    Researchers looked at four different demographic scenarios (altered mean vital rates (i.e., fertility and mortality), vital rate stochasticity, vital rate covariance, and periodic catastrophes) and their possible effects on the rapid population growth of contemporary human foragers and steady population decline of chimpanzees. They evaluated these variables and the various conditions that would favor a more sustainable zero population growth (ZPG) among 10 small-scale subsistence human populations (Agta, Ache, Hadza, Hiwi, Ju/’hoansi, Gainj, Tsimane, Yanomamo, Northern Territory Aborigines, and Herero) and five wild chimpanzee groups (Gombe, Kanyawara, Mahale, Ngogo, and Taï). The results state that the most effective modifications towards ZPG would include a combination of more than one of the four demographic scenarios tested, with the most realistic solution including both vital rate alteration and an increase in catastrophes.

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  2. Longevity Among Hunter-Gatherers: A Cross-Cultural ExaminationGurven, Michael - Population and Development Review, 2007 - 1 Hypotheses

    This article seeks to reevaluate the widespread assumption that hunter-gatherers lack the longevity that people in the modern, industrialized world enjoy. Through modeling life expectancy, mortality, and other demographic trends among extant hunter-gatherer, gatherer-horticulturalists, and horticulturalists societies they are able to challenge this belief. The authors conclude that longevity is a "novel feature of Homo sapiens" and that seven decades seems to be the natural lifespan of a human.

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  3. Technological organization and settlement mobility: an ethnographic examinationShott, Michael - Journal of Anthropological Research, 1986 - 2 Hypotheses

    This study tests the relationship between mobility and technology among foragers, with the intent of applying findings to the archaeological record. In data analysis, mobility frequency is differentiated from mobility magnitude, and technological diversity is differentiated from technological complexity. Results suggest that mobility frequency is negatively associated with technological diversity while mobility magnitude is negatively associated with technological complexity.

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  4. Population aggregation and the Anasazi social landscape: A view from the four cornersAdler, Michael A. - The Ancient Southwestern Community: Models and Methods for the Study of Prehistoric Social Organization, 1990 - 1 Hypotheses

    Using both archaeological data from the Mesa Verde region and a Human Relations Area Files random sample of 25 worldwide societies, and another 10 from the American Southwest, the author looked to examine the relationship between changes in community size and settlements, agriculture intensification, and rules governing resource access. In particular the researcher wanted to examine the size of the group that controls the primary access to the main resource. After studying this global sample, the author takes an ethnographic look specifically at the Northern Anasazi in southewestern Colorado.

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  5. Ritual Facilities and Social Integration in Nonranked SocietiesAdler, Michael A. - The Architecture of Social Integration in Prehistoric Pueblos, 1989 - 2 Hypotheses

    The author sampled 28 nonhierarchical, sedentary (at least partially), and demographically documented societies to examine the presence, size, and use of socially integrative facilities. Examing the ethnographic record from the Human Relations Area Files, the author looked to test the assumption that kivas were intended for communal ritual activity.

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  6. Communities of Soil and Stone- An Archaeological Investigation of Population AggregationAdler, Michael A. - Chapters 4 & 5, 1990 - 6 Hypotheses

    The dissertation in its entirety is an archaeological investigation of population aggregation among the Mesa Verde region Anasazi A.D. 900-1300. Chapters four and five of Adlers larger work focus on cross-cultural perspectives to inform discussion around resource access and community strength. Multiple different hypotheses were tested with different data sets, but the HRAF database and Standard Cross Cultural Sample were used throughout.

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  7. Consanguinity as a Major Predictor of Levels of Democracy: A Study of 70 NationsWoodley, Michael A. - Journal of Cross-Cultural Psychology, 2013 - 7 Hypotheses

    While it is widely accepted that there are a multitude of variables that contribute to a society’s level of democracy, the authors of this study argue that the prevalence of consanguinity is one that is often overlooked. Using a sample of 70 nations, they tested the relationship between consanguinity (defined as marriage and subsequent mating between second cousins or closer relatives) and level of democracy (defined by both the Polity IV scale and the EIU Index) and found a significant negative relationship. Similarly, when controlled for a host of different variables in multiple regression analysis, the significant relationship between consanguinity and level of democracy held true.

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  8. It's Our Fault: A Global Comparison of Different Ways of Explaining Climate ChangeSchnegg, Michael - Human Ecology, 2021 - 0 Hypotheses

    In this paper, the authors survey a collection of 28 ethnographic case studies that are concerned with indigenous understandings of climate change. They argue that while more and more people across the globe are becoming concerned with the issue of climate change, these people are not merely accepting scientific narratives. On the contrary, these researchers map out various ways that scientific narratives interact with local ones. They categorize these interactions as hybridity, domination/resistance, and pluralism. The overwhelming majority of cases showed that hybridity between local and scientific narratives and ontologies were present.

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  9. Economic Development and Modernization in Africa Homogenize National CulturesMinkov, Michael - Journal of Cross-Cultural Psychology, 2021 - 3 Hypotheses

    This study used data from the Afrobarometer Survey to compare the cultures of 85 ethnolinguistic groups from 25 African countries on markers of cultural modernization and emancipation, such as attitudes towards gender equality, xenophobia, and the role of religion in society. The study found that nearly all of the ethnolinguistic groups studied within a country clustered together in terms of their attitudes towards cultural modernization. The study also found that the variation between nations was often greater than the variation between ethnolinguistic groups, and that the cultural differences between ethnolinguistic groups within a nation were highly correlated with economic indicators such as GDP per person, employment in agriculture and the service sector, and phone subscriptions per person. The study suggests that economic development and modernization lead to cultural homogenization within a nation and a decreasing relevance of ethnolinguistic culture.

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  10. Fire, Ash, and Sanctuary: Pyrotechnology as Protection in the Precolonial Northern Rio GrandeAdler, Michael A. - Agent of Change: The Deposition and Manipulation of Ash in the Past, 2021 - 10 Hypotheses

    This survey chapter discusses the use of ash and other fire-generated materials in Ancestral Pueblo settlements in the northern Rio Grande region. The author begins by surveying ethnographic reports of ash use among indigenous groups in the Southwest and Great Basin regions to understand the potential reasons for ash use in prehistoric contexts beyond just cooking. He then turns to archaeological data to explore the extensive use of fire, ash, and other pyrotechnic products across indigenous communities in the region, focusing on excavated architectural and mortuary contexts from the northern Rio Grande, especially the Taos and Picuris areas. The author argues that these fire-related actions and products show that ash plays two major roles -- it is used as a part of major transition ceremonies and as an instrument for healing. The author concludes that these ethnographic observations inform and illuminate archaeological contexts that contain ash, charcoal, and fire.

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