Table 2.

Alpha diversity indices for the total methane functional categories.

	Sample 2a	Sample 2c	Sample 1c	Sample 1b
Individuals	1065	2706	4037	3701
Dominance_D	0.2888	0.2932	0.306	0.295
Simpson_1-D	0.7112	0.7068	0.694	0.705
Shannon_H	1.69	1.662	1.605	1.653
Evenness_e^H/S	0.4167	0.4053	0.3831	0.4019
Equitability_J	0.6587	0.6479	0.6259	0.6446
Fisher_alpha	2.084	1.773	1.668	1.69