Table 2

Mean preference function slopes expressed by high and low food females, and overall preference function slopes expressed by all females. Differences among treatments are assessed using a paired-sample t-test. Deviations of common preference functions from zero are assessed using a one-sample t-test.

Comparison of treatment preference functions

Common preference function



Mean slopes*

Paired t-test

Mean slope* (SE)

One-sample t-test

High

Low

t9

P

t19

P


Body area

0.6 (0.4)

0.3 (0.4)

0.506

0.625

0.4 (0.3)

1.443

0.083

Tail area

0.8 (0.9)

0.7 (0.8)

0.092

0.928

0.6 (0.6)

1.252

0.113

Black area

52.3 (60.1)

60.8 (52.1)

-0.152

0.882

56.5 (38.7)

1.460

0.081

Fuzzy black area

13.2 (53.3)

63.5 (48.2)

-0.848

0.418

38.3 (35.5)

1.082

0.147

Orange area

41.3 (32.4)

64.6 (28.8)

-1.269

0.236

52.9 (21.3)

2.488

0.011

Iridescent area

60.8 (46.5)

75.5 (55.7)

-0.273

0.791

68.1 (35.4)

1.928

0.035


* all mean slopes are × 100

Syriatowicz and Brooks BMC Ecology 2004 4:5   doi:10.1186/1472-6785-4-5

Open Data