RESULTS
Species assemblages of fruit-feeding butterflies
A total of 542 individuals from 40 species was recorded during the one year trapping period (total of 1008 trap days). Only 8% of all individuals captured were unidentified and so excluding these from the analyses is unlikely to have affected the results.
In this study 17 species were recorded only at low level, whereas 3 species were recorded only at medium level and another 4 species only at high level (107, 3 and 12 individuals, respectively). Thirty-one species were more common at low traps whereas 23 species were more common in medium and high traps. Table 1 shows the number of species trapped at different heights, and their relative abundance.
Diversity of fruit-feeding butterflies
Diversity values of Shannon-Wiener index, Simpson’s and Margalef’s indices at each level are shown in Table 2. Pairwise comparisons using randomization tests based on 10,000 random samples (Solow 1993), showed that there were no significant differences in species diversity between any of the levels (P > 0.05 in all cases).
Movement of fruit-feeding butterflies between traps at different heights
From 542 individuals captured in traps during the study, there were 615 recaptures (Table 1). Few individuals were recaptured moving between traps at different heights, but the greatest number was of individuals moving between low traps and medium traps (Table 3).
Adult longevity of fruit-feeding butterflies
20
RESULTS
Species assemblages of fruit-feeding butterflies
A total of 542 individuals from 40 species was recorded during the one year trapping period (total of 1008 trap days). Only 8% of all individuals captured were unidentified and so excluding these from the analyses is unlikely to have affected the results.
In this study 17 species were recorded only at low level, whereas 3 species were recorded only at medium level and another 4 species only at high level (107, 3 and 12 individuals, respectively). Thirty-one species were more common at low traps whereas 23 species were more common in medium and high traps. Table 1 shows the number of species trapped at different heights, and their relative abundance.
Diversity of fruit-feeding butterflies
Diversity values of Shannon-Wiener index, Simpson’s and Margalef’s indices at each level are shown in Table 2. Pairwise comparisons using randomization tests based on 10,000 random samples (Solow 1993), showed that there were no significant differences in species diversity between any of the levels (P > 0.05 in all cases).
Movement of fruit-feeding butterflies between traps at different heights
From 542 individuals captured in traps during the study, there were 615 recaptures (Table 1). Few individuals were recaptured moving between traps at different heights, but the greatest number was of individuals moving between low traps and medium traps (Table 3).
Adult longevity of fruit-feeding butterflies
20
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