Found 3628 Hypotheses across 363 Pages (0.009 seconds)
  1. Relative reliance on consonants vs. vowels in human languages cross-culturally will be associated with different environments (5).Maddieson, Ian - Human language diversity and the acoustic adaptation hypothesis, 2015 - 10 Variables

    In the field of bioacoustics, the Acoustic Adaptation theory suggests that variation in vocalization across different species can be accounted for by the acoustic properties of different habitats. Here, the researchers test consonant- and vowel-heaviness in human languages against various environmental variables in order to examine the theory's potential application to our own species. The authors identify a significant negative correlation between consonant heaviness and temperature, precipitation, and tree cover, and some positive correlation with rugosity and elevation as their most important findings, while acknowledging the potentially influential roles of migration and demographic factors in producing this relationship.

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  2. River density, ecoregion richness, topographic complexity, climate change velocity, precipitation constancy, and temperature constancy all help explain variation in population density.Cuelho, Mario Tulio Pacheco - Drivers of geographical patterns of North American language diversity, 2019 - 7 Variables

    The authors examine multiple ecological variables as possible predictors of language diversity in North America using path analysis, mechanistic simulation modelling, and geographically weighted regression. They conclude that many of the variables do not predict language diversity, but rather are mediated by population density. The authors also find that the variables' ability to predict is not universal across the continent, but rather more regional.

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  3. Both cultural phylogeny and ecology will be stronger predictors than spatial distance for a majority of traits in all categories (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 4 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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  4. The effects of cultural phylogeny will tend to decline over time (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 3 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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  5. Cultural phylogeny will be a stronger predictor than ecology for a majority of traits, except for technology and material culture traits (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 3 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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  6. Association between geographic language area and various environmental variables will be stronger among pastoralists and foragers than among agriculturalists (7).Currie, Thomas E. - The evolution of ethnolinguistic diversity, 2012 - 6 Variables

    The authors test the relationship between ethnolinguistic area and various environmental variables in a cross-cultural sample of hunter-gatherer, pastoral, and agricultural subsistence groups in order to evaluate various hypotheses surrounding the geographic and ecological origins of cultural diversity. They propose that societies which adopted agriculture at the beginning of the Holocene were less directly affected by climate which, combined with the effect of increasing political and cultural complexity, allowed coordination and homogenization of ethnolinguistic groups over a broader swathe of territory.

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  7. Behavioral traits will be affected by both cultural history and ecology (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 3 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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  8. Cultural history will have a stronger effect on the probability of a trait being present than ecology (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 3 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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  9. Topographic complexity will be a predictor of language diversity in North America.Cuelho, Mario Tulio Pacheco - Drivers of geographical patterns of North American language diversity, 2019 - 2 Variables

    The authors examine multiple ecological variables as possible predictors of language diversity in North America using path analysis, mechanistic simulation modelling, and geographically weighted regression. They conclude that many of the variables do not predict language diversity, but rather are mediated by population density. The authors also find that the variables' ability to predict is not universal across the continent, but rather more regional.

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  10. Cultural history will have a larger effect than ecology in a majority of traits in the categories of technology and material culture, marriage and family organization, economic organization, ceremonies and rituals, supernatural beliefs, kinship system, political organization, warfare, settlement patterns, and sodalities (5).Mathew, Sarah - Behavioural variation in 172 small-scale societies indicates that social lea..., 2015 - 3 Variables

    Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.

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