. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 3. Mean lime to first observed behavior (3A) and Initiation of Pair Formation (3B) for the intact control and treatment groups. Bars represent mean standard error. Differences between intact control and treatment groups were evaluated with a non-directional t-test. Stars indicate statistical significance at a = P < ). Fewer pairs were stable (Fig. 2F) if the males were antennule ablated (FAT, P = ) or antennule ablated and blindfolded (FAT, P = ). The incidence of stable pairing was also reduced
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figure 3. Mean lime to first observed behavior (3A) and Initiation of Pair Formation (3B) for the intact control and treatment groups. Bars represent mean standard error. Differences between intact control and treatment groups were evaluated with a non-directional t-test. Stars indicate statistical significance at a = P < ). Fewer pairs were stable (Fig. 2F) if the males were antennule ablated (FAT, P = ) or antennule ablated and blindfolded (FAT, P = ). The incidence of stable pairing was also reduced when male nephropores were occluded (FAT, P = ). This was the only sig- nificant effect observed with any nephropore occlusion. An examination of the mean time between a trial's start and the first observed behavior (Fig. 3A) showed significant differences between treatment groups (ANOVA F = , p = ). The mean time to first behavior was signifi- cantly less than the control group when males were blind- folded (t = , P = ), when males were blindfolded and antennule ablated (t = , P = ), and when females were antennule ablated (t = , P = ). Overall differences were found (ANOVA F = , P = ) when the time between trial start and Initiation of Pair Formation was evaluated (Fig. 3B). In this comparison only the female antennule-ablated trials showed a signifi- cant reduction in time (t = , P = ). Time differ- ences between the male blindfolded group and the intact controls closely approached significance (t = , P = ), while those for the male blindfolded and antennule ablated group were not significant (t = , P = ). Discussion Arthropod behavior has generally been considered ste- reotyped. Studies of some insects, such as many moth species, have demonstrated stereotypic courtship behavior: specific chemical signals elicit specific and predictable re- sponses (Kaissling, 1979; Charlton and Carde, 1990). Other
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