The name is absent



variables using an ANOVA in SAS 9.1 (SAS Institute Inc., Cary, NC, 2003). Because
only 5-10 of 48 baits were discovered within 10 minutes on any given day, all dates were
summed for contingency tables and recruitment time analysis. None of the locations had
repeated discoveries of sugar baits, but 10 out of 19 locations that discovered protein
dishes had repeated discoveries. Though repeated discoveries of baits on different days
are not truly independent data points, this was the only way to conduct meaningful
statistical tests.

Results

Colony-level competition

For control colonies, ant species was often a significant factor. Crazy ants had
significantly lower mortality than fire ants (Table 3.1, Figure 3.1) and consumed
significantly less sugar water (Table 3.1, Figure 3.2), but there was no difference between
species in mealworm consumption (Table 3.1). Crazy ants recruited in greater numbers
than fire ants to mealworms but not to sugar water (Table 3.1, Figure 3.3). Crazy ants
also discovered and recruited to both mealworms and sugar water more quickly than fire
ants did (Table 3.1, Figure 3.4).

Standardizing factor (mass versus number of workers) generally did not
significantly affect response variables for control colonies (Table 3.1). The exception
was that mealworm and sugar water total recruitment were both higher for colony units
standardized by worker number (worker numbers were higher for colonies standardized
by worker number than by biomass). The interaction between species and standardizing
factor was significant only for total recruitment to sugar water (Table 3.1). For sugar

47



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