Table 3 |
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|
Effects of log-transformed water volume and leaf litter mass on proportion occupancy |
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|
Species |
N |
R2 |
F |
PF |
Parameter |
Coefficient |
SE |
t |
Pt |
|
|
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|
A. triseriatus |
20 |
0.58 |
14.32 |
0.0003 |
Y-intercept |
0.063 |
0.08 |
0.77 |
0.45 |
|
Water vol |
0.27 |
0.06 |
4.26 |
0.001 |
|||||
|
Leaf mass |
0.084 |
0.19 |
0.44 |
0.67 |
|||||
|
|
|||||||||
|
T. rutilus |
17 |
0.37 |
5.80 |
0.015 |
Y-intercept |
0.012 |
0.08 |
0.15 |
0.88 |
|
Water vol |
0.20 |
0.06 |
3.40 |
0.007 |
|||||
|
Leaf mass |
-0.32 |
0.16 |
-2.03 |
0.062 |
|||||
|
|
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|
C. guttipennis |
20 |
0.25 |
4.12 |
0.033 |
Y-intercept |
0.19 |
0.08 |
2.41 |
0.017 |
|
Water vol |
0.12 |
0.06 |
1.87 |
0.012 |
|||||
|
Leaf mass |
0.16 |
0.19 |
0.82 |
0.42 |
|||||
|
|
|||||||||
|
H. pulchella |
20 |
0.23 |
3.77 |
0.044 |
Y-intercept |
0.16 |
0.07 |
2.28 |
0.035 |
|
Water vol |
0.15 |
0.06 |
2.66 |
0.017 |
|||||
|
Leaf mass |
-0.14 |
0.17 |
-0.84 |
0.42 |
|||||
|
|
|||||||||
|
M. posticata |
8 |
0.16 |
1.69 |
0.28 |
Y-intercept |
0.044 |
0.11 |
0.42 |
0.69 |
|
Water vol |
0.12 |
0.08 |
1.63 |
0.16 |
|||||
|
Leaf mass |
-0.02 |
0.22 |
-0.11 |
0.92 |
|||||
|
|
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|
T. albipunctatus |
20 |
1.93 |
0.18 |
Y-intercept |
0.11 |
0.05 |
2.12 |
0.049 |
|
|
Water vol |
0.048 |
0.04 |
1.23 |
0.24 |
|||||
|
Leaf mass |
0.075 |
0.12 |
0.64 |
0.54 |
|||||
|
|
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|
Results of randomization regressions of proportion occupancy vs. log-transformed water volume and leaf litter mass. N = number of months used. Number varies because some species are not active year round. R2 = proportion of variation explained by the model, F = regression model test statistic, PF = probability associated with F statistic, s.e. = standard error of the coefficient estimate, t = test statistic for coefficient, Pt = probability associated with t-statistic. |
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|
Paradise et al. BMC Ecology 2008 8:22 doi:10.1186/1472-6785-8-22 |
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