Safe or in danger? Time and distance of reaction in hermit crabs to a risk of predation

IF 0.9 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY Marine and Freshwater Behaviour and Physiology Pub Date : 2021-11-17 DOI:10.1080/10236244.2021.2009344
Alex Mauricio Mopán-Chilito, María José Tovar-Gil, John F. Aristizabal, Maribel Rojas-Montoya
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Abstract

ABSTRACT Escape decisions to predators are influenced by aspects such as prey’s visual perspective, in which visual cues are essential to detect and react to predators. Crabs use the visual sense to detect and scaling potential threats. Here, we evaluate the escaping response of free-ranging Pacific hermit crab (Coenobita compressus) after showing them stimuli differing in size and shapes that resemble potential threats. We conducted a field experiment on 150 individuals of Pacific hermit crab. The crab’s reaction time and distance was recorded with respect to five predator models (large bird, small bird, large square, small square, and null model), additionally, the shell size of each crab was measured. We found that crab reaction time and distance are influenced by the large bird and large square models while shell size had no effect. Our results suggest that Pacific hermit crabs in this population have the ability to discriminate predators and base their escape response depending on the size and shape of the predator.
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安全还是有危险?寄居蟹对捕食风险的反应时间和距离
对捕食者的逃跑决策受到诸如猎物视觉视角等方面的影响,其中视觉线索对于发现和应对捕食者至关重要。螃蟹用视觉感知来探测和衡量潜在的威胁。在这里,我们评估了自由放养的太平洋寄居蟹(Coenobita compressus)在向它们展示不同大小和形状的类似潜在威胁的刺激后的逃跑反应。我们对150只太平洋寄居蟹进行了野外实验。记录了五种捕食模型(大鸟、小鸟、大正方形、小正方形和零模型)下螃蟹的反应时间和距离,并测量了每只螃蟹的壳大小。结果表明,大鸟模型和大方形模型对蟹的反应时间和距离有影响,而壳的大小对蟹的反应时间和距离没有影响。我们的研究结果表明,这个种群中的太平洋寄居蟹有能力辨别捕食者,并根据捕食者的大小和形状来确定它们的逃跑反应。
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来源期刊
Marine and Freshwater Behaviour and Physiology
Marine and Freshwater Behaviour and Physiology 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
9
审稿时长
>12 weeks
期刊介绍: Marine and Freshwater Behaviour and Physiology is devoted to the publication of papers covering field and laboratory research into all aspects of the behaviour and physiology of all marine and freshwater animals within the contexts of ecology, evolution and conservation. As the living resources of the world’s oceans, rivers and lakes are attracting increasing attention as food sources for humans and for their role in global ecology, the journal will also publish the results of research in the areas of fisheries biology and technology where the behaviour and physiology described have clear links to the contexts mentioned above. The journal will accept for publication Research Articles, Reviews, Rapid Communications and Technical Notes (see Instructions for authors for details). In addition, Editorials, Opinions and Book Reviews (invited and suggested) will also occasionally be published. Suggestions to the Editor-In-Chief for Special Issues are encouraged and will be considered on an ad hoc basis. With the goal of supporting early career researchers, the journal particularly invites submissions from graduate students and post-doctoral researchers. In addition to recognising the time constraints and logistical limitations their research often faces, and their particular need for a prompt review process, accepted articles by such researchers will be given prominence within the journal (see Instructions for authors for details).
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