Effects of prior social experience on agonistic responding by Siamese fighting fish (Betta splendens) |
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| Authors: | Nancy Woodard Cain Reid Anderson Lori Stein Cynthia Jessen |
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| Institution: | 1. Bucknell University, 17837, Lewisburg, Pennsylvania
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| Abstract: | The role of prior social experience in maleBetta agonistic behavior was investigated in two experiments. Fish were either paired with an opponent until dominance was established naturally (Experiment 1) or given prior combat experience with a known aggressive or nonaggressive opponent (Experiment 2). The effects of prior social experience were then observed both in additional paired encounters and in some noncombat agonistic situations. The paired-encounter data indicate thatBetta attack aggressive opponents more than nonaggressive ones and rarely attack opponents once they have submitted. In contrast to attacking, these fish do not show a significant decrease in displays once their opponent has submitted, nor do they display differentially to aggressive and nonaggressive opponents. The noncombat agonistic-situation data indicate that prior social experience affects both the preference of fish for viewing other conspecifics and the waning of display behaviors. These results suggest that submissive and nonaggressive behaviors can inhibit attacks but not displays byBetta, and they emphasize the necessity of controlling for prior social experience when studying aggressive behavior. |
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