From: Herbivory of an invasive slug is affected by earthworms and the composition of plant communities
 | Earthworms | Plant community comp. | Ew x Pl.cc. | |||
---|---|---|---|---|---|---|
Variable | F | P | F | P | F | P |
Plant growth | Â | Â | Â | Â | Â | Â |
Focus spp. leaf length (cm) | 0.030 | 0.863 | 2.307 | 0.130 | 0.056 | 0.813 |
A. elatius | 0.092 | 0.763 | 2.819 | 0.098 | 0.208 | 0.650 |
P. vulgaris | 0.048 | 0.828 | 12.106 | 0.001 | 2.438 | 0.124 |
T. pratense | 6.181 | 0.016 | 28.918 | <0.001 | 0.028 | 0.866 |
Focus spp. tiller numbers (funct. gr.-1) | 1.425 | 0.234 | 12.396 | 0.001 | 1.643 | 0.201 |
A. elatius | 0.815 | 0.370 | 2.481 | 0.120 | 2.364 | 0.129 |
P. vulgaris | 0.014 | 0.906 | 7.704 | 0.007 | 0.507 | 0.479 |
T. pratense | 2.700 | 0.105 | 9.094 | 0.004 | 0.001 | 0.003 |
Focus plants shoot biomass | 1.119 | 0.290 | 4.012 | 0.045 | 2.200 | 0.138 |
A. elatius shoot mass | 4.624 | 0.032 | 6.184 | 0.013 | 4.948 | 0.027 |
P. vulgaris shoot mass | 0.629 | 0.428 | 0.187 | 0.665 | 0.163 | 0.687 |
T. pratense shoot mass | 0.009 | 0.926 | 9.457 | 0.002 | 0.006 | 0.936 |
Total plant biomass (g mesoc.-1) | 3.375 | 0.073 | 11.332 | 0.002 | 5.246 | 0.027 |
Total shoot biomass | 2.511 | 0.120 | 10.986 | 0.002 | 5.751 | 0.021 |
Total root biomass | 2.770 | 0.103 | 4.934 | 0.032 | 1.281 | 0.264 |
Total grass shoots | 0.344 | 0.560 | 36.226 | <0.001 | 2.302 | 0.136 |
Total forb shoots | 2.744 | 0.105 | 133.920 | <0.001 | 5.040 | 0.033 |
Total legume shoots | 0.891 | 0.350 | 0.115 | 0.736 | 0.304 | 0.584 |
Plant quality | Â | Â | Â | Â | Â | Â |
Total plant C tot (%) | 0.096 | 0.758 | 0.114 | 0.736 | 0.004 | 0.949 |
A. elatius Ctot | 3.229 | 0.080 | 1.800 | 0.187 | 0.003 | 0.955 |
P. vulgaris Ctot | 0.001 | 0.988 | 0.018 | 0.893 | 0.010 | 0.922 |
T. pratense Ctot | 1.467 | 0.232 | 0.073 | 0.789 | 1.416 | 0.240 |
Total plant N tot (%) | 7.022 | 0.009 | 0.215 | 0.643 | 0.159 | 0.691 |
A. elatius Ntot | 5.728 | 0.021 | 0.127 | 0.723 | 0.056 | 0.814 |
P. vulgaris Ntot | 5.855 | 0.017 | 2.070 | 0.160 | 0.098 | 0.756 |
T. pratense Ntot | 5.604 | 0.022 | 0.121 | 0.730 | 3.394 | 0.072 |
Total plant C:N ratio | 6.324 | 0.013 | 0.232 | 0.631 | 0.045 | 0.833 |
A. elatius C:N ratio | 5.560 | 0.023 | 0.001 | 0.985 | 0.095 | 0.756 |
P. vulgaris C:N ratio | 0.360 | 0.553 | 1.484 | 0.232 | 0.073 | 0.789 |
T. pratense C:N ratio | 5.078 | 0.029 | 0.001 | 0.992 | 2.561 | 0.117 |
Slug herbivory | Â | Â | Â | Â | Â | Â |
No. damaged leaves after 3 days | 0.406 | 0.531 | 2.075 | 0.165 | 0.002 | 0.965 |
P. vulgaris leaves damaged | 0.006 | 0.939 | 4.531 | 0.041 | 0.028 | 0.869 |
T. pratense leaves damaged | 0.138 | 0.714 | 5.248 | 0.033 | 0.138 | 0.714 |
No. damaged leaves after 6 days | 7.667 | 0.012 | 0.754 | 0.395 | 0.087 | 0.771 |
P. vulgaris leaves damaged | 2.621 | 0.121 | 11.346 | 0.003 | 1.555 | 0.227 |
T. pratense leaves damaged | 4.961 | 0.038 | 24.719 | <0.001 | 4.613 | 0.044 |
Total leaf area eaten mesocosm -1 | 0.754 | 0.387 | 10.371 | 0.002 | 3.432 | 0.066 |
P. vulgaris leaf area eaten | 0.374 | 0.543 | 5.500 | 0.023 | 1.750 | 0.191 |
T. pratense leaf area eaten | 0.606 | 0.440 | 6.803 | 0.012 | 0.010 | 0.922 |