level of probability. The third was significant at the .10
level of probability and, therefore, will not be considered
in this discussion. The fourth variate was not significant.
The first variate incorporates 61.22% of the total variation
and the second 29.87%.
Table 8. Canonical Variates in Analysis II.
Number of Canonical Chi-Square Degrees of
Variate Sets Freedom
1 195.18961 36**
2 94.64266 24**
3 23.28067 14
4 5.74528 < 6
** indicates significance at the .01 level of probability
An inspection of the canonical coefficients for the
individual variables (Table 9) reveals a positive associa-
tion between stem diameter and internode length with the
5th instar Vogtia. This relationship, as explained in the
first analysis, has been observed in the field in areas where
alligatorweed was under severe stress. During temporary
stress periods, the aerial stems may become small,with the
stems making up the mat remaining large. In this case,
the larvae can survive in the mat unless flooding occurs
which may drown the larvae. Another relationship occurring
in the first canonical variable is a negative association
between Agasicles feeding and stem size. This relationship,