ABSTRACT Locomotion has been a well-studied avenue for questions regarding the costs of autotomy. However, previous studies have focused on traditional means of locomotion such as walking, running, or swimming; an unexplored aspect of locomotion as it relates to the costs of autotomy is the dorso-ventral righting reflex, or DVRR. Using a comprehensive set of treatment groups, we explored how autotomy affects the DVRR in the crab Hemigrapsus nudus. Our results suggested that missing walking legs had no impact on an animal’s ability to complete the DVRR. However, the enlarged claws of males were shown to impede the speed at which males can right themselves out of the compromising, supine position. This is a novel example of how a sexually selected trait can negatively affect animal locomotion.

中文翻译：

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紫色岸蟹的背腹翻正反射受性选择的爪子的阻碍，但不受腿部自切术的影响

摘要 运动一直是有关自切术成本问题的经过充分研究的途径。然而，以前的研究主要集中在传统的运动方式上，如步行、跑步或游泳；与自切术成本相关的运动的一个尚未探索的方面是背腹翻正反射，或 DVRR。使用一组全面的治疗组，我们探索了自切术如何影响螃蟹 Hemigrapsus nudus 中的 DVRR。我们的结果表明，缺少步行腿对动物完成 DVRR 的能力没有影响。然而，雄性扩大的爪子被证明会阻碍雄性从不利的仰卧姿势中恢复过来的速度。这是一个关于性选择特征如何对动物运动产生负面影响的新例子。