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Outcomes of agonistic interactions alter sheltering behavior in crayfish
Behavioural Processes ( IF 1.3 ) Pub Date : 2021-01-27 , DOI: 10.1016/j.beproc.2021.104337
Lauren Mathews

‘Winner’ and ‘loser’ effects have been demonstrated in a broad range of species, but such investigations are often limited to the effects of prior contest outcomes on future agonistic interactions. Much less is known about the impacts of winning or losing contests on other aspects of individual behavior, like courtship interactions and sheltering behavior. In this investigation, I examined the effect of prior contest outcomes on sheltering behavior in the crayfish Faxonius virilis. I predicted that winners of contests would spend less time inside shelters and more time exploring, while losers of contests would spend more time inside shelters and less time exploring. I compared individual sheltering behavior before and after staged dyadic encounters between competitively mismatched individuals. This experiment revealed strong effects on the behavior of contest losers, which showed significant increases in the amount of time spent inside the shelter immediately after the contest. However, there was no significant change in the sheltering behavior of contest winners. These results reinforce the idea that contest outcomes can affect individual behaviors other than agonistic behavior, and suggest that losing a contest may motivate individual crayfish to engage in less-risky behavior, at least for a brief period after the contest.



中文翻译:

激动性相互作用的结果改变了小龙虾的庇护行为

已经在各种各样的物种中证明了“获胜者”和“失败者”的影响,但是这种研究通常仅限于先前比赛结果对未来激动剂相互作用的影响。人们对获胜或输掉比赛对个人行为的其他方面(如求爱互动和庇护行为)的影响知之甚少。在这项调查中,我检查了先前比赛结果对小龙虾Faxonius virilis庇护行为的影响。。我预测比赛的获胜者将在庇护所中花费更少的时间,而将更多的时间用于探索,而比赛的失败者将在庇护所中花费更多的时间,而将更少的时间用于探索。我比较了竞争失配的个人在上演二战之前和之后的个人庇护行为。该实验显示出对比赛失败者行为的强烈影响,表明比赛后立即在避难所内花费的时间显着增加。但是,比赛获胜者的避难行为没有明显变化。这些结果强化了这样一种观念,即竞赛结果可能会影响除激动行为以外的其他行为,并表明输掉竞赛可能会激发小龙虾从事较低风险的行为,

更新日期:2021-02-02
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