Appendix A. A table of macrofaunal density at two sampling points and in two habitats.
TABLE A1. Comparison of responses to unshaded, shaded, and control treatments by the macrofaunal community (density) after three months (August) and six months (November) in (A) S. foliosa and (B) S. virginica habitats. Mean density of organisms per core (18.1 cm2) ( +1 SE) are reported. Superscripted letters indicate a posteriori differences among treatments (P > 0.05).
Three months |
Six months |
|||||||||
Species |
Unshaded |
Shaded |
Control |
χ22 |
P value |
Unshaded |
Shaded |
Control |
χ22 |
P value |
| A) Spartina foliosa | ||||||||||
Assiminea californica |
0.13 (0.13) |
0.50 (0.27) |
0.50 (0.33) |
1.31 |
0.519 |
0 |
0 |
0.13 (0.13) |
2.00 |
0.368 |
Capitella spp . complex |
0a |
0a |
1.38 (0.98)b |
6.54 |
0.038 |
0.88 (0.44) |
0.63 (0.26) |
1,88 (1.74) |
0.55 |
0.759 |
Capitellidae sp #2 |
0.13 (0.13) |
0.75 (0.49) |
0.50 (0.10) |
2.15 |
0.342 |
n/a |
||||
Ceratapogonidae larvae sp. 1 |
2.38 (1.34) |
2.13 (0.93) |
5.00 (3.84) |
0.09 |
0.954 |
0.13 (0.13) |
0 |
0.25 (0.16) |
5.38 |
0.068 |
Coleoptera sp. 1 |
0 |
0.38 (0.18) |
0.13 (0.13) |
4.03 |
0.138 |
0.38 (0.18)a |
0b |
0b |
6.57 |
0.037 |
Chironomid larvae sp 1 |
0 |
0 |
0 |
0 |
0 |
0.13 (0.13) |
2.00 |
0.368 |
||
Corophium spp . |
0.13 (0.13) |
6.0 (3.53) |
3.88 (2.38) |
2.15 |
0.342 |
0.38 (0.18) |
6.63 (4.37) |
23.38 (12.76) |
4.76 |
0.093 |
Dolicopodidae larvae sp 1 |
0.75 (0.53) |
0.25 (0.16) |
0.25 (0.16) |
0.10 |
0.949 |
1.63 (0.68)a |
0.88 (0.40)ab |
0.25 (0.16b |
8.15 |
0.017 |
Enchytraidae sp 1 |
16.75 (9.84)a |
70.5 (23.88)b |
29.38(10.40)ab |
7.93 |
0.019 |
49.88 (13.99) |
74.75 (21.80) |
75.88 (24.35) |
0.52 |
0.771 |
Ephydra larvae sp 1 |
0.13 (0.13) |
1.13 (0.61) |
0.75 (0.37) |
3.32 |
0.190 |
0 |
1.25 (0.53) |
0.63 (0.63) |
7.75 |
0.021 |
Fabricia sabella |
0.13 (0.13) |
4.62 (1.74) |
4.0 (2.81) |
5.36 |
0.068 |
0 |
3.63 (3.21) |
3.38 (3.38) |
5.09 |
0.079 |
Ligia occidentalis |
0 |
0 |
0.13 (0.13) |
2.00 |
0.368 |
0.13 (0.13) |
0 |
0.13 (0.13) |
1.05 |
0.593 |
Mite 1 |
7.38 (4.12) |
10.63 (2.70) |
6.23 (3.10) |
1.78 |
0.411 |
0 |
0 |
0.50 (0.50) |
2.00 |
0.368 |
Mite 2 |
0.13 (0.13) |
0.25 (0.16) |
0.50 (0.27) |
1.49 |
0.475 |
5.88 (0.13) |
5.63 (0.16) |
5.38 (0.27) |
0.02 |
0.992 |
Muscidae larvae sp 1 |
1.88 (0.64) |
2.25 (0.59) |
2.38 (1.24) |
0.63 |
0.731 |
22.75 (8.20) |
1.75 (0.59) |
1.25 (0.73) |
4.63 |
0.099 |
Nemertea sp 1 |
0 |
0 |
0 |
0 |
0 |
0.13 (0.13) |
3.86 |
0.145 |
||
Traskorchestia traskiana |
0.63 (0.63) |
1.38 (0.46) |
0.75 (0.53) |
3.11 |
0.211 |
0 |
0.38 (0.38) |
0 |
6.02 |
0.049 |
Platyhelminthes sp 1 |
0 |
0 |
0 |
0.25 (0.25) |
0 |
0.63 (0.32) |
4.18 |
0.124 |
||
Poduridae sp 1 |
0 |
0 |
1.38 (1.38) |
2.00 |
0.368 |
0 |
0 |
0 |
||
Polydora cornuta |
0.63 (0.63) |
1.38 (0.94) |
0 |
2.18 |
0.336 |
1.00 (0.65) |
2.75 (2.75) |
7.75 (3.17) |
4.69 |
0.096 |
Paranais littoralis |
0 |
0 |
0 |
31.13 (15.92) |
26.50 (11.53) |
42.25 (16.83) |
0.62 |
0.732 |
||
Polydora nuchalis |
0.13 (0.13) |
2.75 (1.82) |
1.38 (0.78) |
2.00 |
0.368 |
4.63 (3.43) |
5.25 (2.99) |
0.5 (0.5) |
1.60 |
0.449 |
Psychodidae sp 1 |
0.25 (0.25) |
0.25 (0.25) |
0 |
1.05 |
0.593 |
2.00 (0.53)a |
0.88 (0.48)ab |
0.13 (0.13)b |
8.15 |
0.017 |
Spionidae sp 1 |
1.63 (0.98) |
0.63 (0.42) |
0.25 (0.16) |
1.72 |
0.424 |
0 |
0.25 (0.25) |
0 |
2.00 |
0.368 |
Staphylinidae sp 1 |
1.00 (0.50) |
0 |
0.13 (0.13) |
6.58 |
0.037 |
0 |
0 |
0 |
||
Tubificidae sp 1 |
1.13 (0.99)a |
14.38 (7.21)b |
5.63 (1.95)ab |
9.00 |
0.011 |
1.25 (0.49) |
0.13 (0.13) |
4.25 (4.11) |
4.78 |
0.092 |
| B) Salicornia virginica | ||||||||||
Assiminea californica |
1.0 (0.87) |
4.0 (3.34) |
0.25 (0.16) |
1.00 |
0.606 |
3.25 (1.76) |
3.25 (2.02) |
2.62 (0.94) |
0.74 |
0.691 |
Barleeia sp. |
0 |
0.25 (0.25) |
0 |
2 |
0.368 |
0 |
0 |
0 |
||
Capitella spp . complex |
0 |
0 |
0 |
0 |
0 |
0.25 (0.25) |
2.00 |
0.368 |
||
Ceratapogonidae larvae sp. 1 |
0 |
1.38 (1.10) |
2.63 (2.63) |
3.59 |
0.166 |
11.63 (6.78) |
14.13 (5.14) |
2.62 (0.84) |
2.29 |
0.318 |
Cincindelidae adult sp. 1 |
0.5 (0.27) |
0.25 (0.25) |
0.13 (0.13) |
1.81 |
0.405 |
0 |
0 |
0.25 (0.16) |
4.18 |
0.124 |
Coleoptera sp. 1 |
0 |
0 |
0 |
0 |
0 |
0.13 (0.13) |
2.00 |
0.368 |
||
Chironomid larvae sp 1 |
0 |
0 |
0 |
0 |
0.13 (0.13) |
0 |
2.00 |
0.368 |
||
Dolicopodidae larvae sp 1 |
0 |
0 |
2.0 (1.33) |
9.15 |
0.011 |
0.75 (0.49)a |
2.88 (0.85)b |
0.88 (0.30)a |
6.77 |
0.034 |
Enchytraidae sp 1 |
14.88 (6.25) |
61.63 (19.27) |
46.63 (14.51) |
4.59 |
0.100 |
24.25 (8.96) |
29.00 (6.91) |
59.13 (23.11) |
1.34 |
0.151 |
Ephydra larvae sp 1 |
0 |
0.13 (0.13) |
0.25 (0.25) |
1.05 |
0.592 |
0.63 (0.42) |
1.00 (0.42) |
0 |
4.70 |
0.095 |
Ligia occidentalis |
0 |
0 |
0.25 (0.25) |
2.00 |
0.368 |
0 |
0 |
0 |
||
Mite 1 |
0 |
0 |
0 |
0.25 (0.16) |
0.75 (0.53) |
6.50 (5.93) |
1.56 |
0.458 |
||
Mite 2 |
0 |
2.13 (2.13) |
0.13 (0.13) |
1.05 |
0.592 |
0 |
0.13 (0.13) |
0.50 (0.50) |
1.05 |
0.592 |
Muscidae larvae sp 1 |
1.88 (1.04) |
0.25 (0.16) |
0.50 (0.19) |
4.95 |
0.084 |
1.13 (0.52) |
0.38 (0.26) |
0.25 (0.16) |
2.28 |
0.320 |
Nemertea sp 1 |
0 |
0.13 (0.13) |
0.50 (0.50) |
1.05 |
0.592 |
0.13 (0.13) |
0 |
0 |
2.00 |
0.368 |
Neanthes succinea |
0 |
0.13 (0.13) |
0 |
2 |
0.368 |
0 |
1.00 (1.00) |
1.50 (1.50) |
1.05 |
0.592 |
Oniscid isopod sp 1 |
0 |
0.25 (0.25) |
0.38 (0.26) |
2.01 |
0.351 |
0a |
0a |
0.88 (0.50)b |
6.55 |
0.037 |
Traskorchestia traskiana |
0 |
1.63 (1.21) |
1.00 (0.60) |
5.57 |
0.062 |
1.25 (1.00) |
1.25 (0.59) |
0.88 (0.23) |
1.57 |
0.456 |
Platyhelminthes sp 1 |
3.88 (3.59) |
2.00 (0.78) |
0.88 (0.48) |
1.71 |
0.426 |
0.88 (0.64) |
3.63 (2.05) |
0 |
3.78 |
0.151 |
Paranais littoralis |
0 |
0 |
0 |
0.25 (0.16) |
1.88 (1.61) |
0.13 (0.13) |
0.67 |
0.717 |
||
Polydora nuchalis |
0.38 (0.26) |
0.88 (0.61) |
0.75 (0.75) |
0.87 |
0.646 |
0.50 (0.50) |
2.38 (1.50) |
0.63 (0.63) |
2.15 |
0.341 |
Psychodidae sp 1 |
0 |
0 |
0 |
0 |
0.25 (0.25) |
0 |
2.00 |
0.368 |
||
Staphylinidae sp 1 |
0.13 (0.13) |
0.25 (0.16) |
0.25 (0.16) |
0.48 |
0.785 |
0.50 (0.38) |
0.63 (0.63) |
0.25 (0.25) |
0.45 |
0.799 |
Stratiomyidae larvae sp 1 |
0 |
0.25 (0.25) |
0 |
2.00 |
0.368 |
0.88 (0.52) |
2.63 (2.35) |
0.25 (0.16) |
0.53 |
0.767 |
Tubificidae sp 1 |
0 |
0 |
0 |
0 |
0 |
0.13 (0.13) |
2.00 |
0.368 |
||