Table 1  F- and p-values of linear mixed-effects models on variations in δ15N and δ13C signatures of macrofauna taxa/species with season (April, July, October) and salt marsh zone (upper salt marsh, lower salt marsh) on the island of Spiekeroog in 2019
Species | n | Zone (Z) | Season (S) | Z × S | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ẟ15N | ẟ13C | ẟ15N | ẟ13C | ẟ15N | ẟ13C | ||||||||
F | p | F | p | F | p | F | p | F | p | F | p | ||
Talitrus saltator | 15 | 26.19 | 0.004 | 2.40 | 0.156 | 10.76 | 0.019 | 1.23 | 0.336 | 0.53 | 0.620 | 1.71 | 0.235 |
Ochthebius dilatatus | 16 | 61.01 | 0.001 | 7.73 | 0.003 | 7.47 | 0.039 | 1.55 | 0.269 | 1.05 | 0.426 | 7.84 | 0.013 |
Dicheirotrichus gustavii | 10 | 9.22 | 0.075 | 37.44 | 0.001 | 9.85 | 0.021 | 8.97 | 0.024 | 4.95 | 0.069 | 0.06 | 0.819 |
Chalcid wasps | 6 | Only LSM | 11.19 | 0.075 | 0.95 | 0.384 | N/A | ||||||
Staphylinidae larvae | 7 | 10.99 | 0.015 | 2.64 | 0.275 | ||||||||
Amischa spp. | 9 | Only USM | 0.41 | 0.705 | 27.33 | 0.030 | |||||||