Table 3.

Two-way PERMANOVA model and pair-wise tests based on Bray–Curtis and Jaccard matrices within habitats among seasons and year (Year and Season interaction; Yr x Se)

Source	Df	MS	Pseudo-F	P(perm)	MS	Pseudo-F	P(perm)
		Bray–Curtis			Jaccard
M1
Yr	1	14,075	6.5403	0.001	12,833	4.884	0.001
Se	1	7999.3	3.7171	0.001	7602.5	2.8934	0.001
Yr x Se	1	3967.2	1.8434	0.025	4439.2	1.6895	0.012
Res	12	2152			2627.6
M2
Yr	1	8802.9	2.4787	0.007	6405	1.6328	0.041
Se	1	3050.7	0.85902	0.608	4207.3	1.0726	0.36
Yr x Se	1	3968.6	1.1175	0.362	2779.8	0.70866	0.859
Res	12	3551.4			3922.6
S1
Yr	1	6362.4	2.71	0.002	5844.2	1.9678	0.002
Se	1	3610.6	1.5379	0.086	5086.2	1.7125	0.009
Yr x Se	1	4735.3	2.0169	0.008	4624.4	1.5571	0.026
Res	12	2347.8			2970
S2
Yr	1	5513.2	1.7404	0.038	4583.2	1.3682	0.089
Se	1	3369.6	1.0637	0.376	4300.4	1.2838	0.149
Yr x Se	1	3296.2	1.0405	0.36	4002.9	1.195	0.196
Res	12	3167.9			3349.8
Unv.
Yr	1	7397.4	2.7142	0.001	5802.3	1.831	0.003
Se	1	8791.8	3.2258	0.001	8686.2	2.7411	0.001
Yr x Se	1	4248.6	1.5589	0.039	4144	1.3077	0.129
Res	12	2725.5			3168.9
Pair-wise tests
Term ‘Yr x Se’ for pairs of levels of factor ‘Year’
Within level ‘Su’ of factor ‘Season’
M1		Groups	t	P(perm)		t	P(perm)
		2014, 2015	2.2928	0.026		2.0907	0.024
Within level ‘W’ of factor ‘Season’
M1		2014, 2015	1.7421	0.028		1.5051	0.038
S1		2014, 2015	2.0553	0.023		1.5675	0.022
Term ‘Yr x Se’ for pairs of levels of factor ‘Season’
Within level ‘2014′ of factor ‘Year’
M1		Su, W	2.1788	0.03		1.9213	0.029
S1		Su, W	1.2833	0.031		1.4205	0.037
Within level ‘2015’ of factor ‘Year’
S1		Su, W	1.3824	0.029

M1 and M2, mangrove; S1 and S2, seagrass; and unvegetated area (Unv)