Strategies of resource acquisition are subject to change due to introduced pressures placed upon individual animals. The pressures of food deprivation and competition can lead to a drastic change in previously established strategies of resource acquisition. We conducted a series of trials in which red swamp crayfish (Procambarus clarkii) were either deprived of food or satiated and competition was introduced via a plastic model to necessitate the abandonment of established resource acquisition strategies in favor of risk-insensitive strategies. Crayfish exhibited no difference in behavior when exposed to a singular pressure; however, an interaction between food deprivation and competition was detected and indicates that crayfish responded to food sources more quickly and with more risk-insensitive behavior when a model competitor was present. This combination of factors indicates a complex relationship between resource acquisition strategies and the pressures of acquiring food.

中文翻译：

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饱和度和竞争风险对红螯小龙虾（Procambarus clarkii）资源获取的影响。

由于对个体动物施加的压力，资源获取的策略可能会发生变化。粮食匮乏和竞争的压力可能导致以前建立的资源获取战略发生巨大变化。我们进行了一系列试验，其中包括红色沼泽小龙虾（Procambarus clarkii）被剥夺食物或饱食，并通过塑料模型引入竞争，以放弃对风险敏感的策略而放弃既有的资源获取策略。小龙虾在受到奇异压力时的行为没有差异。但是，检测到食物剥夺与竞争之间存在相互作用，这表明当存在模型竞争者时，小龙虾对食物来源的反应更快，并且对风险的敏感性更高。这些因素的组合表明资源获取策略与获取食物的压力之间存在复杂的关系。