2.4 Data analysis
Detrended correspondence analysis (DCA) was used
to discriminate between study sites and among the sampling
methods used for ant species, and canonical correspondence
analysis (CCA) was used to correlate environmental factors
with ant species using PC-ORD (McCune and Mefford,
1997) . The frequency of ant species found had to be greater
than 50% of a sampling collection, for inclusion in the calculation
(100% frequency of ant species means ant species
occur every time of sampling (6 sampling), thus 50% means
that the ants occur only in 3 sampling times. This analysis makes the results more realistic. The frequency of ant species
showed in Table 2).
The percentage of ant species was used for comparisons
between and among combinations of sampling methods
applying the following formula.
% of combination of n sampling methods = (N/T)x100
n = number of combination sampling methods
N = number of ant species found between n sampling
methods
T = Total number of ant species
We count the total number species of ants in each
sampling method and combination between sampling method