Toward a theory of punctuated subsistence change
Proceedings of the National Academy of Sciences • Vol/Iss. 112 • National Academy of Sciences • Washington, D.C • Published In • Pages: 9579-9584 •
By Ullah, Isaac I. T., Kuijt, Ian, Freeman, Jacob
Hypothesis
Using multivariate clustering, it is expected that patterns in human subsistence variability will be found that are consistent with the thery of "attractors" and "repellers." (9580)
Note
multivariate analysis identified 4 discrete clusters consistent with "attractors" separated by gaps that may be "repellors": intensive agriculture, extensive agriculture, pastoralism, and hunting or gathering terrestrial or marine resources.
| Test Name | Support | Significance | Coefficient | Tail |
|---|---|---|---|---|
| K-medoids (multivariate) clustering paired with nonmetric multdimensional scaling (NMMDS) | Supported | UNKNOWN | UNKNOWN | Not Applicable |
| Variable Name | Variable Type | OCM Term(s) |
|---|---|---|
| Environmental Productivity (net Primary Productivity | UNKNOWN | Geography, Soil, Agriculture, Land Use |
| Population Size | UNKNOWN | Population |
| Precipitation Seasonality (number Of Dry Months | UNKNOWN | Climate |
| Settlement Fixity (residential Mobility) | UNKNOWN | Settlement Patterns, Community Structure |
| Subsistence | UNKNOWN | Diet |
| Temperature | UNKNOWN | Climate |