Table 2. Analysis of deviance table. The response variables are the counts of Calopteryx aequabilis and Calopteryx maculata observed along transects. The models are log-linear models fit with a log link and Poisson errors. In the first column, significant interaction terms are written in boldface. P values are based on tests against 2 distributions. Trends among levels of factors in significant interactions are displayed in Fig. 5.



C. aequabilis
C. maculata
Term
df
Deviance
P
Deviance
P
Null
239
730.98
666.18
MONTH
1
7.74
0.005
8.12
0.004
SEX
1
5.27
0.022
4.42
0.035
TIME
4
37.56
<0.001
63.79
<0.001
RESOURCE
1
274.52
<0.001
142.70
<0.001
LANDSCAPE
2
81.73
<0.001
102.22
<0.001
TIME x SEX
4
3.99
0.408
1.56
0.817
RESOURCE x SEX
1
6.47
0.011
8.17
0.004
RESOURCE x TIME
4
23.57
<0.001
51.98
<0.001
LANDSCAPE x SEX
2
3.45
0.178
1.89
0.388
LANDSCAPE x TIME
8
31.56
<0.001
14.60
0.068
LANDSCAPE x RESOURCE
2
32.24
<0.001
42.92
<0.001
RESOURCE x TIME x SEX
4
5.97
0.202
6.83
0.145
LANDSCAPE x TIME x SEX
8
3.38
0.909
4.06
0.852
LANDSCAPE x RESOURCE x SEX
2
4.10
0.129
0.02
0.988
LANDSCAPE x RESOURCE x TIME
8
10.23
0.249
4.41
0.818
LANDSCAPE x RESOURCE x TIME x SEX
8
1.67
0.989
2.93
0.939
Residual
179
197.54
205.56