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A memory-based foraging tactic reveals an adaptive mechanism for restricted space use

机译:基于内存的觅食策略揭示了一种有限空间使用的自适应机制

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The restricted area of space used by most mobile animals is thought to result from fitness-rewarding decisions derived from gaining information about the environment. Yet, assessments of how animals deal with uncertainty using memory have been largely theoretical, and an empirically derived mechanism explaining restricted space use in animals is still lacking. Using a patchto- patch movement analysis, we investigated predictions of how free-ranging bison (Bison bison) living in a meadow-forest matrix use memory to reduce uncertainty in energy intake rate. Results indicate that bison remembered pertinent information about location and quality of meadows, and they used this information to selectively move to meadows of higher profitability. Moreover, bison chose profitable meadows they had previously visited, and this choice was stronger after visiting a relatively poor quality meadow. Our work demonstrates a link between memory, energy gains and restricted space use while establishing a fitness-based integration of movement, cognitive and spatial ecology.
机译:大多数流动动物使用的有限空间被认为是从获取有关环境的信息中得出的健身奖励决定中得出的。然而,关于动物如何利用记忆来处理不确定性的评估在很大程度上仍是理论上的,并且仍缺乏从经验上得出的解释限制动物使用空间的机制。通过使用斑块运动分析,我们调查了生活在草地森林矩阵中的自由放养的野牛(野牛野牛)如何利用记忆来减少能量摄入率的不确定性的预测。结果表明,野牛记住了有关草地的位置和质量的相关信息,并且他们使用此信息有选择地向利润率更高的草地迁移。此外,野牛选择了他们以前曾参观过的有利可图的草地,而在参观了质量相对较差的草地之后,这种选择就更强了。我们的工作证明了记忆,能量获取和有限的空间使用之间的联系,同时建立了基于适应度的运动,认知和空间生态的整合。

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