Mating Resets Male Cricket Aggression |
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Authors: | Kathleen A Killian Janelle R Allen |
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Institution: | (1) Department of Zoology, Miami University, 212 Pearson Hall, Oxford, OH, USA |
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Abstract: | An animal’s motivational state can significantly impact its behavior. We examined the effects of mating on the aggression
of male Acheta domesticus crickets. Pairs of males were allowed to establish dominance and subordinance and were then physically separated. Subordinate
males were then allowed to either copulate with a female or to have chemo-tactile contact with, but to not copulate with,
a female. Less than 15 min after separation, all male pairs engaged in a second agonistic encounter. Subordinate males that
copulated with females were significantly more aggressive toward their dominant partners than un-mated subordinate males.
Many mated subordinates became dominant. Allowing a subordinate male to contact, but not copulate with, a female had a similar
effect, suggesting that chemo-tactile cues from the female are sufficient to elicit this change in aggression. |
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Keywords: | Aggression motivation social rank dominance Acheta domesticus |
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