Ecological Archives E096-149-A7
Joseph A. LaManna, Amy B. Hemenway, Vanna Boccadori, and Thomas E. Martin. 2015. Bird species turnover is related to changing predation risk along a vegetation gradient. Ecology 96:1670–1680. http://dx.doi.org/10.1890/14-1333.1
Appendix G. Correlations between population density and nest predation rates for bird species.
Table G1. Correlations between population density and nest predation rates for bird species breeding in western Montana, USA (see Fig. 4). The χ² statistic and corresponding p value from likelihood ratio tests are presented along with Pearson's correlation coefficient (r), sample size of study forest stands (n), and link function. Significant effects (p < 0.05) are bolded and marginally significant effects (p < 0.10) are italicized. Bird species are ordered according to effect size of PC axes on density (see Appendix E).
Species |
χ² |
p value |
r |
n |
Link Function |
House Wren |
0.24 |
0.627 |
-0.21 |
5 |
identity |
Western Wood-pewee |
0.61 |
0.435 |
-0.33 |
7 |
log |
Mountain Bluebird |
2.64 |
0.105 |
-0.62 |
6 |
log |
Northern Flicker |
10.45 |
0.001 |
-0.92 |
6 |
identity |
Red-naped Sapsucker |
4.17 |
0.041 |
-0.70 |
11 |
log |
Mountain Chickadee |
13.67 |
< 0.001 |
-0.87 |
13 |
identity |
Red-breasted Nuthatch |
2.65 |
0.104 |
0.73 |
6 |
identity |
Ruby-crowned Kinglet |
10.25 |
0.001 |
-0.89 |
8 |
log |
Chipping Sparrow |
11.64 |
0.001 |
-0.73 |
15 |
identity |
Dark-eyed Junco |
0.89 |
0.345 |
0.25 |
14 |
identity |
Yellow-rumped Warbler |
5.25 |
0.022 |
-0.73 |
11 |
log |
Lincoln's Sparrow |
14.45 |
< 0.001 |
-0.94 |
8 |
log |
Yellow Warbler |
5.68 |
0.017 |
-0.92 |
7 |
log |
Dusky Flycatcher |
4.17 |
0.041 |
-0.56 |
11 |
identity |
Warbling Vireo |
4.21 |
0.040 |
-0.51 |
16 |
identity |
American Robin |
4.94 |
0.026 |
-0.60 |
16 |
log |