论文标题
营养调节影响殖民地动态和社交昆虫殖民地的任务分配
Nutritional Regulation Influencing Colony Dynamics and Task Allocations in Social Insect Colonies
论文作者
论文摘要
在本文中，我们使用自适应建模框架来建模和研究营养状况（通过蛋白质与碳水化合物比率衡量）如何调节种群动态并觅食社交昆虫菌落的任务分配。对我们的模型的数学分析表明，对育雏的投资和育雏营养对于殖民地的生存和动态都很重要。当劳动力和/或营养的划分在中间值范围内时，该模型会经历向后分叉，并由于双重性而创建多个吸引子。这种双重性意味着菌落存活需要阈值。当对育雏的投资足够大或营养需求不太严格时，殖民地往往会生存，否则殖民地会面临崩溃。我们的模型表明，菌落生存的需求是由育雏生存概率塑造的，这需要良好的营养状况。结果，更好的营养状况可以导致幼虫的生存率更高，从而导致更大的工人人口。
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.
