Proceedings of the National Academy of Sciences • Vol/Iss. 106(18) • National Academy of Sciences • Washington, D.C • Published In • Pages: 7339-7344 •
Political complexity of the society in which a language is spoken will be positively associated with the geographic range of that language (7340).
Subsistence strategy, plant species diversity (SPDV), mean growing season (MGS), latitude, and net primary productivity (NPP) are included as environmental and cultural controls. Although political complexity was the strongest predictor, latitude was significantly positively correlated, and MGS and NPP significantly negatively correlated, with language area.
|Multiple regression||Supported||p < 0.001||UNKNOWN||UNKNOWN|
|Variable Name||Variable Type||OCM Term(s)|
|Net Primary Productivity||Independent||Flora|
|Political Complexity||Independent||Territorial Organization|
|Language area||Dependent||Linguistic Identification, Location|
|Mean Growing Season||Independent||Climate|
|Plant Species Diversity||Independent||Flora|