Ecological Archives E096-169-A5
Max C. N. Castorani and Kevin A. Hovel. 2015. Invasive prey indirectly increase predation on their native competitors. Ecology 96:1621–1632. http://dx.doi.org/10.1890/14-1538.1
Appendix E. Parameter estimates from binomial logistic regression analysis testing the effects of Arcuatula density on the survival of native clams (Experiment 2).
Table E1. Parameter estimates from binomial logistic regression analysis testing the effects of Arcuatula density (in units of 1000 mussels/m²) on the survival of native clams (Experiment 2). P values < 0.05 are shown in bold.
Native clam species |
Model parameter |
Estimate |
SE |
χ² |
df |
P |
Chione undatella |
|
|
|
|
|
|
|
Intercept |
2.300 |
0.554 |
17.21 |
1 |
< 0.0001 |
|
Arcuatula density |
–0.493 |
0.228 |
4.66 |
1 |
0.0309 |
|
|
|
|
|
|
|
Laevicardium substriatum |
|
|
|
|
|
|
|
Intercept |
1.100 |
0.494 |
4.96 |
1 |
0.0260 |
|
Arcuatula density |
–0.649 |
0.276 |
5.53 |
1 |
0.0186 |