Handling times (log-transformed) of male and female E. jugularis at three St. Lucian heliconias for 10 and 20 microliter nectar volumes (a; M10 = solid circle, F10 = open circle, M20 = solid square, F20 = open square) and in relation to total bill length (b-d; only results for 10 µl are shown). a) Mean, SE. For flowers of green H. bihai, handling times of females were significantly shorter than handling times of males at both nectar volumes. Both sexes had significantly shorter handling times at H. caribaea than at either morph of H. bihai (P = 0.05 overall, t-tests and paired t-tests with Bonferroni corrections). b) Relationship between log handling time (= HT) and total bill length (mm; = BL) of both sexes at green H. bihai. Regression statistics are M10HT = 3.32 – 0.103BL, rsq = 70.9%, F = 9.8, P = 0.04, n = 6; F10HT = 2.41 – 0.063BL, rsq = 93.6%, F = 43.7, P = 0.01, n = 5. c) Relationship between log handling time and total bill length (mm) of both sexes at red-green H. bihai. Regression statistics are M10HT = 2.81 – 0.094BL, rsq = 75.2%, F = 12.1, P = 0.025, n = 6; F10HT = -0.23 + 0.025BL, rsq = 7.2%, F = 0.23, P = 0.66, n = 5. d) Relationship between log handling time and total bill length (mm) of both sexes at H. caribaea. Regression statistics are M10HT = 1.10 – 0.029BL, rsq = 16.5%, F = 0.8, P = 0.42, n = 6; F10HT = 0.28 + 0.002BL, rsq = 0.3%, F = 0.01, P = 0.94, n = 5.(See Temeles et al. 2009 Ecology).

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