UMBC Department of Biological Sciences, The University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
UMBC Department of Biological Sciences, The University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
Curr Biol. 2020 Jun 8;30(11):1981-1987.e3. doi: 10.1016/j.cub.2020.03.023. Epub 2020 Apr 9.
Path integration is a robust mechanism that many animals employ to return to specific locations, typically their homes, during navigation. This efficient navigational strategy has never been demonstrated in a fully aquatic animal, where sensory cues used for orientation may differ dramatically from those available above the water's surface. Here, we report that the mantis shrimp, Neogonodactylus oerstedii, uses path integration informed by a hierarchical reliance on the sun, overhead polarization patterns, and idiothetic (internal) orientation cues to return home when foraging, making them the first fully aquatic path-integrating animals yet discovered. We show that mantis shrimp rely on navigational strategies closely resembling those used by insect navigators, opening a new avenue for the investigation of the neural basis of navigation behaviors and the evolution of these strategies in arthropods and potentially other animals as well. VIDEO ABSTRACT.
运动整合是一种强大的机制，许多动物在导航过程中利用它返回特定的位置，通常是它们的家。这种高效的导航策略从未在完全水生的动物中表现出来，因为用于定向的感觉线索可能与水面以上的线索有很大的不同。在这里，我们报告说，螳螂虾（Neogonodactylus oerstedii）利用依赖太阳、头顶上的极化模式和自身（内部）定向线索的分层运动整合来觅食回家，这使它们成为迄今为止发现的第一批完全水生的运动整合动物。我们表明，螳螂虾依赖于类似于昆虫导航者使用的导航策略，为研究导航行为的神经基础以及这些策略在节肢动物和潜在的其他动物中的进化开辟了新的途径。视频简介。
