Found 74 Documents across 8 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.

    Related DocumentsCite
  2. Residential variation among hunter-gatherersEmber, Carol R. - Behavior Science Research, 1975 - 7 Hypotheses

    This study explores predictors of variation in two dimensions of marital residence patterns among hunter-gatherers: 1) the tendency toward patrilocality versus matrilocality and 2) the tendency toward unilocality versus bilocality.

    Related DocumentsCite
  3. Our better nature: Does resource stress predict beyond-household sharingEmber, Carol R. - Evolution and Human Behavior, 2018 - 3 Hypotheses

    The present research investigates food sharing and labor sharing practices of 98 nonindustrial societies. The aims are to: 1) document the frequency and scope of sharing, and 2) test the theory that greater sharing is adaptive in societies subject to more resource stress (including natural hazards).

    Related DocumentsCite
  4. Quantitative historical analysis uncovers a single dimension of complexity that structures global variation in human social organizationTurchin, Peter - Proceedings of the National Academy of Sciences, 2017 - 1 Hypotheses

    Using the compiled database "Seshat: Global History Databank," researchers sampled 30 societies from 10 distinct regions of the world, testing 51 variables that were condensed into 9 "complex characteristic" variables. Researchers tested for correlates in how societies evolve structurally. Utilizing principal component analysis it was demonstrated that the complex characteristic variables were strongly associated, leading to theorization of structural and social evolution predictability.

    Related DocumentsCite
  5. Inculcated traits and game-type combinations: a cross-cultural viewRoberts, John M. - The Humanistic and Mental Health Aspects of Sports, Exercise and Recreation, 1976 - 1 Hypotheses

    This study relates the type of games present in a society to the level of cultural complexity. Authors use a "game-type combination scale" that categorizes societies as having: 1) games of physical skill only; 2) games of physical skill and games of chance; and 3) games of physical skill, games of chance, and games of strategy. Results show a relationship between the game-type combination scale and indicators of cultural complexity.

    Related DocumentsCite
  6. Modernization as changes in cultural complexity: new cross-cultural measurementsDivale, William Tulio - Cross-Cultural Research, 2001 - 2 Hypotheses

    This article considers the consequences of modernization. Factor analysis is used to identify four stages of modernization: 1) changes in education, government, and trade; 2) changes in health, technology, and transportation; 3) changes in family, religion, and toilet; and 4) changes in behavior. The authors then consider five trends they expect to be associated with modernization and test whether they develop over the course of the four stages. Results indicate that these 5 trends—increased cultural complexity, female status, pacification, suicide, and social stress—are associated with only the first and fourth stages.

    Related DocumentsCite
  7. Altered states of consciousness within a general evolutionary perspective: a holocultural analysisBourguignon, Erika - Cross-Cultural Research, 1977 - 1 Hypotheses

    This article investigates a cultural patterning of altered states of consciousness. The authors use an ordinal variable for a society's trance type; its four levels are 1) trance, 2) trance and possession trance, 3) possession trance, and 4) neither type. Results suggest that trance type is associated with measures of societal complexity and subsistence economy. Regional differences and the effects of diffusion are also examined.

    Related DocumentsCite
  8. Societal complexity or production techniques: another look at udy's data on the structure of work organizationsNorr, James L. - American Journal of Sociology, 1977 - 3 Hypotheses

    This study asserts that the structure of work organizations is affected more by production techniques than societal complexity. Empirical analysis suggests two trends: 1) production techniques that increase the importance of workers will influence rationality in work organizations, and 2) production techniques that increase the importance of workers and societal complexity will affect the bureaucratic elements of work organizations approximately equally. These findings challenge Udy’s (1970) thesis that complex peasant societies face more challenges than less complex societies in transitioning to modern industrial work forms.

    Related DocumentsCite
  9. Entailment theory and method: a cross-cultural analysis of the sexual division of laborWhite, Douglas R. - Behavior Science Research, 1977 - 3 Hypotheses

    This article discusses constraints on role behavior that affect the division of labor, focusing on women’s childcare responsibilities, the nature of production sequences, and occupational specialization. The authors employ entailment analysis to examine 50 activities; results suggest three findings: 1) men are more likely to be assigned tasks that require travel and exposure to danger, 2) men are more likely to perform tasks that are early in the production sequence, and 3) if women perform a task at an early stage of production, they are more likely to perform subsequent tasks.

    Related DocumentsCite
  10. Symbolic or not-so-symbolic wounds: the behavioral ecology of human scarificationLudvico, Lisa Rose - Ethnology and Sociobiology, 1995 - 4 Hypotheses

    This article tests four hypotheses regarding scarification, which is described as 1) a rite of passage, 2) a hardening/trauma procedure, 3) a nonadaptive sexually selected character, or 4) an adaptive pathogen driven sexually selected character. Only the third hypothesis is supported in a worldwide sample, suggesting that scarification is associated with polygyny. The other three are each supported in different regional subsamples—principally the first hypothesis (supported in Africa, the Insular Pacific, and South America).

    Related DocumentsCite