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首页> 外文期刊>Marine ecology >Misinterpreting the potential benefits of aggregation for reducing desiccation in the intertidal: a simple analogy
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Misinterpreting the potential benefits of aggregation for reducing desiccation in the intertidal: a simple analogy

机译：误解了聚合减少潮间带干燥的潜在好处：一个简单的类比

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摘要

The potential adaptive benefits of aggregation in intertidal invertebrates, in terms of preventing desiccation stress, are logical, but have proved difficult to confirm from field measurements. Through a simple analogy we explain why this may be so, especially for those species that do not solely forage when fully immersed. Measuring water content (or osmotic potentials of body fluids) of individuals that become inactive in aggregations and comparing this with non-aggregated individuals, which is the most common method of determining adaptive benefits of aggregation to desiccation, (i) causes any relationships between desiccation and aggregation to be, at best, weakly related due to variability in the different times that individuals enter aggregations, and (ii) is not measuring the true benefit of aggregation, which in this case should be measured as a reduction in the rate of water loss. Further, the design of field studies or experiments to determine the benefits of aggregation in terms of desiccation reduction is extremely challenging, due to the unavoidable repeated disturbances to individuals that are necessary to measure water levels at multiple occasions, in order to measure the rate of water loss. We suggest that development of biomimetic sensors, such as modification of the robolimpet sensor, are required to measure in situ rates of water loss with a high temporal resolution. Although such sensors may not be truly physiologically realistic, they are likely to provide the least confounded approach to understanding benefits of aggregation in terms of physical stress reduction.
机译：就防止干燥应力而言，潮间带无脊椎动物聚集的潜在适应性好处是合乎逻辑的，但已证明很难从野外测量中确认。通过简单的类比，我们解释了为什么会这样，尤其是对于那些在完全浸没时不仅仅觅食的物种。测量聚合中不活跃的个体的水分含量（或体液的渗透势），并将其与非聚合个体进行比较，这是确定聚合对脱水的适应性优势的最常见方法，（i）引起脱水之间的任何关系由于个体进入聚集的不同时间的可变性，聚集与充其量之间的关联性最好是弱相关的；（ii）并未衡量聚集的真正利益，在这种情况下，应将其衡量为水率的降低失利。此外，实地研究或实验的设计，以确定减少干燥方面的聚集的好处是极具挑战性的，因为不可避免地会多次干扰个体，从而多次测量水位以测量水的比率。水分流失。我们建议需要开发仿生传感器，例如对robolimpet传感器进行修改，以便以较高的时间分辨率测量原位失水速率。尽管这样的传感器在生理上可能并不是真正的现实，但它们可能会提供最少混淆的方法，以从降低物理压力的角度了解聚合的好处。

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  • 来源
    《Marine ecology》 |2012年第4期|p.512-515|共4页
  • 作者

    Richard Stafford; Mark S. Davies; Gray A. Williams;

  • 作者单位

    Institute of Biomedical and Environmental Science and Technology, Division of Science, University of Bedfordshire, Luton, UK;

    Faculty of Applied Sciences, University of Sunderland, Sunderland, UK;

    The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Hong Kong, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aggregation; desiccation; gastropod; mollusc; snail; water loss;

    机译：聚合;干燥腹足动物软体动物蜗牛;失水;

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