Table 1.

Results from a hierarchical mixed model (GLMM) analysis of the effects of bush species (G, R), farm (1, 2), litter type (G, R, W), and time of sampling (1, 2, 3) on (a) the number of Hypogastrura manubrialis (invasive) and (b) the sum of the numbers of all other Collembola species (indigenous). See text for further details on statistics. Factors with P < 0.01 are indicated in by bold

Effect	Num df	Den df	F Value	Pr > F
(a) H. manubrialis (LN N+0.1)-transformed
Bush species	1	11.9	14.25	0.0027
Farm	1	11.9	2.35	0.151
Bush × Farm	1	11.9	1.96	0.187
Litter	2	26	34.58	<0.0001
Litter × Bush	2	26	1.69	0.204
Litter × Farm	2	26	1.86	0.176
Litter × Bush × Farm	2	26	1.32	0.286
Time	2	75.1	46.43	<0.0001
Bush × Time	2	75.1	6.82	0.0019
Time × Farm	2	75.1	3.04	0.0540
Bush × Time × Farm	2	75.1	3.05	0.0534
Litter × Time	4	75.2	7.04	<0.0001
Litter × Bush × Time	4	75.2	2.31	0.0654
Litter × Time × Farm	4	75.2	3.89	0.0063
Litter × Bush × Time × Farm	4	75.2	0.74	0.570
(b) Indigenous Collembola (LN (N+1)-transformed)
Bush species	1	14.4	0.19	0.666
Farm	1	14.4	0.20	0.662
Bush × Farm	1	14.4	0.73	0.406
Litter	2	28.2	9.46	0.0007
Litter × Bush	2	28.2	0.93	0.408
Litter × Farm	2	28.2	0.44	0.650
Litter × Bush × Farm	2	28.2	1.31	0.285
Time	2	75.6	8.40	0.0005
Bush × Time	2	75.6	0.41	0.662
Time × Farm	2	75.6	10.28	0.0001
Bush × Time × Farm	2	75.6	0.27	0.767
Litter × Time	4	78.2	1.86	0.126
Litter × Bush × Time	4	78.2	0.21	0.932
Litter × Time × Farm	4	78.2	4.37	0.0030
Litter × Bush × Time × Farm	4	78.2	1.22	0.308