Appendix A. Correlation matrices required for the path analysis.
g_{1} 
G 
M 
P 
W 

g_{1} 
. 
–.573 
–.573 
–.520 
.343 
G 
–.713 
. 
.677 
.591 
–.560 
M 
–.576 
.787 
. 
.673 
–.530 
P 
–.499 
.593 
.672 
. 
–.217 
W 
.427 
–.578 
–.490 
–.270 
. 
Notes: Listwise correlations (below diagonal) include the 45 species with data available for all five variables. Pairwise correlations (above diagonal) include all species with data available for each pair of variables. Pairwise sample size ranges from 56 to 71 species. Variables are defined in the text.