Climate, vocal folds, and tonal languages: connecting the physiological and geographic dots

Aridity and/or frigidity of environment will be negatively predictive of rates of complex tonality in language areas.

Test
Test Name	Support	Significance	Coefficient	Tail
Mann-Whitney U Test; Monte Carlo analysis of range	Supported	p<.05	`UNKNOWN`	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Complexity Of Language Tonality	`UNKNOWN`	Phonology
Location	`UNKNOWN`	Location
Mean Annual Temperature (mat)	`UNKNOWN`	Climate
Mean Specific Humidity (mh)	`UNKNOWN`	Climate

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Currie, Thomas E.	2012	Association between geographic language area and various environmental variables will be stronger among pastoralists and foragers than among agriculturalists (7).	Supported	6	Cite Related Hypotheses More By Author
Ember, Melvin	2000	Mean number of syllables per word will be negatively associated with consonant-vowel score (736).	Not Supported	2	Cite Related Hypotheses More By Author
Currie, Thomas E.	2009	Political complexity of the society in which a language is spoken will be positively associated with the geographic range of that language (7340).	Supported	6	Cite Related Hypotheses More By Author
Stivers, Tanya	2009	Length of conversational turn-taking transition will vary between cultures independent of other predictors (10588).	Partially supported	2	Cite Related Hypotheses More By Author
Naroll, Raoul	1976	Over the general course of evolution during the past several thousand years [peaceful] borrowing has been at least as important a selection factor as has been [warlike] migration. Triads consisting of 1) base society 2) nearby society from different language family (borrowers) and 3) distant society from same language family as base society (migrators) were compared for eleven culture traits (209, 204)	Supported	13	Cite Related Hypotheses More By Author