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arXiv 2005.03432q-bio.PE
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营养调控对群居昆虫群体动态和任务分配的影响

Nutritional Regulation Influencing Colony Dynamics and Task Allocations in Social Insect Colonies

Feng Rao, Marisabel Rodriguez Messan, Angelica Marquez, Nathan Smith, Yun Kang

摘要:

在本文中,我们使用一个自适应建模框架来建模和研究营养状况(以蛋白质与碳水化合物的比例衡量)如何调节社会性昆虫群体的种群动力学和觅食任务分配。对模型的数学分析表明,育雏投入和育雏营养对蜂群的生存和动态都有重要影响。当劳动分工和/或营养处于中间值范围内时,由于双稳性,模型经历向后分叉并产生多个吸引子。这种双稳性意味着群体生存需要一个阈值。当对育雏的投资足够大或营养要求不那么严格时,群体往往会生存,否则群体将面临崩溃。我们的模型表明,群体生存的需求是由育雏生存概率,这需要良好的营养状况。因此,更好的营养状况可以导致更好的幼虫存活率,从而增加工蜂数量。

英文摘要:

In this paper, we use an adaptive modeling framework to model and study how nutritional status (measured by the protein to carbohydrate ratio) may regulate population dynamics and foraging task allocation of social insect colonies. Mathematical analysis of our model shows that both investment to brood rearing and brood nutrition are important for colony survival and dynamics. When division of labor and/or nutrition are in an intermediate value range, the model undergoes a backward bifurcation and creates multiple attractors due to bistability. This bistability implies that there is a threshold population size required for colony survival. When the investment in brood is large enough or nutritional requirements are less strict the colony tends to survive, otherwise the colony faces collapse. Our model suggests that the needs of colony survival are shaped by the brood survival probability, which requires good nutritional status. As a consequence, better nutritional status can lead to a better survival rate of larvae, and thus a larger worker population.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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