Table 1.

Determinants of alpha diversity, as measured by the Shannon index

Fixed factor	Estimate	SE	95% confidence interval	LRT	p value
Sex (male)	−0.12	0.04	[−0.20; −0.05]	9.27	0.002
Age	0.01	0.02	[−0.02; 0.04]	0.49	0.484
Cumulative rainfall	0.05	0.02	[0.02; 0.08]	12.13	< 0.001
Minimum temperature	0.00	0.01	[−0.03; 0.03]	0.04	0.848
Sequencing depth	0.07	0.01	[0.04; 0.10]	24.24	< 0.001

Parameters and tests are based on linear mixed models of 758 samples and 131 individuals, controlling for individual identity and unit membership. Factors with p values less than 0.05 are highlighted in bold