Appendix C. Full GLM summaries from analysis of litter species richness and composition after 196 and 564 days for mass loss, moisture, C:N ratio, microbial biomass, and nematode abundance.
TABLE C1. Full GLM summaries from analysis of litter species richness and composition after 196 and 564 days for mass loss, moisture, C:N ratio, microbial biomass and nematode abundance. The effects of litter species richness and composition were examined for each time separately since time was highly significant for all variables (Mass loss: F1, 230 = 1980.7, P < 0.0001, Moisture: F1, 230 = 653.3, P < 0.0001, C:N ratio: F1, 230 = 654.0, P < 0.0001, Microbial biomass: F1, 230 = 15.7, P < 0.0001, Nematode abundance: F1, 230 = 56.0, P < 0.0001).
196 days |
564 days |
||||||||
df |
SS |
MS |
F |
P |
SS |
MS |
F |
P |
|
Log mass loss (%) |
|||||||||
Block |
2 |
0.105 |
0.053 |
8.9 |
<0.001 |
0.108 |
0.054 |
8.4 |
<0.001 |
Species richness# |
4 |
0.097 |
0.024 |
0.2 |
0.961 |
0.046 |
0.012 |
0.1 |
0.974 |
Species composition |
26 |
4.187 |
0.161 |
27.4 |
<0.001 |
2.512 |
0.097 |
14.9 |
<0.001 |
Error |
99 |
0.583 |
0.006 |
0.642 |
0.006 |
||||
Total |
131 |
4.971 |
3.309 |
||||||
Moisture (% litter dry mass) |
|||||||||
Block |
2 |
7517 |
3758 |
2.3 |
0.107 |
168232 |
84116 |
10.3 |
<0.001 |
Species richness# |
4 |
13175 |
3294 |
0.1 |
0.979 |
70543 |
17636 |
1.4 |
0.277 |
Species composition |
26 |
800269 |
30780 |
18.7 |
<0.001 |
338489 |
13019 |
1.6 |
0.053 |
Error |
99 |
162889 |
1645 |
808787 |
8170 |
||||
Total |
131 |
983851 |
1386051 |
||||||
Log C:N ratio |
|||||||||
Block |
2 |
0.031 |
0.016 |
2.9 |
0.061 |
0.074 |
0.037 |
4.4 |
0.015 |
Species richness# |
4 |
0.118 |
0.030 |
0.3 |
0.902 |
0.179 |
0.045 |
1.2 |
0.346 |
Species composition |
26 |
2.965 |
0.114 |
21.0 |
<0.001 |
0.992 |
0.038 |
4.5 |
<0.001 |
Error |
99 |
0.537 |
0.005 |
0.832 |
0.008 |
||||
Total |
131 |
3.650 |
2.078 |
||||||
Log microbial biomass (nmol/g litter dm) |
|||||||||
Block |
2 |
0.388 |
0.194 |
8.0 |
<0.001 |
0.082 |
0.041 |
2.2 |
0.114 |
Species richness# |
4 |
2.982 |
0.746 |
3.4 |
0.024 |
0.055 |
0.014 |
0.3 |
0.856 |
Species composition |
26 |
5.770 |
0.222 |
9.2 |
<0.001 |
1.089 |
0.042 |
2.3 |
0.002 |
Error |
99 |
2.400 |
0.024 |
1.823 |
0.018 |
||||
Total |
131 |
3.049 |
|||||||
Sqrt nematode abundance (Ind./g litter dm) |
|||||||||
Block |
2 |
34.80 |
17.401 |
2.6 |
0.071 |
9.03 |
4.517 |
0.7 |
0.494 |
Species richness# |
4 |
21.57 |
5.393 |
0.9 |
0.494 |
43.59 |
10.898 |
1.9 |
0.150 |
Species composition |
26 |
160.88 |
6.188 |
1.0 |
0.522 |
153.39 |
5.900 |
0.9 |
0.571 |
Error |
99 |
635.19 |
6.416 |
629.95 |
6.363 |
||||
Total |
131 |
852.44 |
835.96 |
||||||
#Species richness term tested against Species composition to obtain appropriate F value.