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首页> 外文期刊>Biology Bulletin Reviews >The Role of Chemoreception in the Formation of Sustainable Populations of Daphnia longispina: Simulation Experiments
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The Role of Chemoreception in the Formation of Sustainable Populations of Daphnia longispina: Simulation Experiments

机译：化学感受性在水蚤可持续种群形成中的作用：模拟实验

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摘要

A new modification of the previously designed individual-based simulation model of population dynamics of a mass pelagic species, Daphnia longispina is presented. The model describes a population as an ordered list of individuals with specific sets oftraits. For each individual, its energy traits are calculated, and the probabilities of different outcomes are assigned or calculated for various life situations. This variant significantly differs from the previous chemosignal blocks that modify Daphnia behavior. After receiving a chemical signal (predator kairomones or sex pheromones), adult Daphnia of the model population can avoid predation with a certain probability by diel vertical migrations and can increase the efficiency of sexual reproductionthrough the active search for a sexual partner. Simulation experiments in which the ability to detect different chemical signals was excluded, sequentially or in combination, were used to investigate the role of chemoreception in the population dynamicsand the seasonal adaptations of planktonic crustaceans. For the first time, a quantitative estimate for the role of such information has been obtained as the ratio between the annual production levels of model populations that possess or lack the ability to perceive chemical signals of predators and mating partners. According to the present version of the model, chemoreception increased the annual production of the model population by 1.5 times. Thus, biological information is a significant factor enabling individual hydrobiont populations to fine-tune their adaptations to the particular environmental conditions of a given aquatic habitat.
机译：提出了一种对以前设计的基于个体的大规模浮游鱼类种群动态模拟模型的新修改，该种浮游物种为水蚤。该模型将人口描述为具有特定特征集的个体的有序列表。对于每个人，都会计算其能量特征，并针对各种生活情况分配或计算不同结果的概率。此变体与以前修饰水蚤行为的化学信号阻滞显着不同。在收到化学信号（捕食者海洛酮或性信息素）后，模型种群的成年水蚤可以通过diel垂直迁移以一定的概率避免捕食，并可以通过积极寻找性伴侣来提高性繁殖的效率。使用模拟实验排除了依次或组合检测不同化学信号的能力，以研究化学感受在浮游甲壳动物种群动态和季节性适应中的作用。首次获得了对此类信息作用的定量估计，作为具有或缺乏感知天敌和交配伙伴化学信号能力的模型种群的年生产水平之间的比率。根据该模型的当前版本，化学感受将模型人口的年产量提高了1.5倍。因此，生物信息是使个体水生生物种群能够微调其对给定水生生境的特定环境条件的适应性的重要因素。

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