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首页> 外文期刊>Marine biology >Niche separation between different functional types of mixoplankton: results from NPZ-style N-based model simulations
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Niche separation between different functional types of mixoplankton: results from NPZ-style N-based model simulations

机译:浮游生物不同功能类型之间的生态位分离:NPZ型基于N的模型模拟的结果

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摘要

Protist plankton comprise phytoplankton (incapable of phagotrophy), protozooplankton (incapable of phototrophy) and mixoplankton (capable of phototrophy and phagotrophy). Of these, only phytoplankton and zooplankton are typically described in models. Over the last decade, however, the importance of mixoplankton across all marine biomes has risen to prominence. We thus need descriptions of mixoplankton within marine models. Here we present a simple yet flexible N-based model describing any one of the five basic patterns of protist plankton: phytoplankton, protozooplankton, and the three functional groups of mixoplankton: general non-constitutive mixoplankton (GNCM), specialist non-constitutive mixoplankton (SNCM), and constitutive mixoplankton (CM). By manipulation of a few input switch values, the same model can be used to describe any of these patterns, while adjustment of salient features, such as the percent of C-fixation required for mixotrophic growth, and the rate of phototrophic prey ingestion required to enable growth of GNCM and SNCM types, readily provides fine tuning. Example outputs are presented showing how the performance of these different protist configurations accords with expectations (set against empirical evidence). Simulations demonstrate clear niche separations between these protist functional groups according to nutrient, prey and light resource availabilities. This addition to classic NPZ plankton models provides for the exploration of the implications of mixoplankton activity in a simple yet robust fashion.
机译:原生浮游生物包括浮游植物(无吞噬能力),原浮游生物(无吞噬能力)和浮游生物(无吞噬能力和吞噬能力)。在这些模型中,通常仅描述浮游植物和浮游动物。然而,在过去的十年中,浮游生物在所有海洋生物群落中的重要性日益突出。因此,我们需要在海洋模型中描述浮游生物。在这里,我们介绍一个简单而灵活的基于N的模型,该模型描述了原生浮游生物的五种基本模式中的任意一种:浮游植物,原生浮游生物和混浮游生物的三个功能组:普通非构成性浮游生物(GNCM),专业性非构成性浮游生物( SNCM)和本构浮游动物(CM)。通过操纵一些输入开关值,可以使用同一模型来描述这些模式中的任何一种,同时调整显着特征,例如混合营养生长所需的C固定百分比,以及摄取营养所需的光养猎物的速率。支持GNCM和SNCM类型的增长,随时可以进行微调。给出了示例输出,显示了这些不同的原生主义者配置的性能如何符合期望(根据经验证据)。模拟表明,根据营养,猎物和光照资源的利用情况,这些原生有机体功能组之间的生态位分离清晰。经典NPZ浮游生物模型的新增功能以简单而稳健的方式探索了浮游生物活动的意义。

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  • 来源
    《Marine biology》 |2020年第1期|3.1-3.21|共21页
  • 作者单位

    Swansea Univ Biosci Singleton Pk Swansea SA2 8PP W Glam Wales|Cardiff Univ Sch Earth & Ocean Sci Pk Pl Cardiff CF10 3AT Wales|Univ Libre Bruxelles Ecol Syst Aquat Cp 221 Blvd Triomphe B-1050 Brussels Belgium;

    Swansea Univ Biosci Singleton Pk Swansea SA2 8PP W Glam Wales;

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