A plausible biocontrol strategy for the eradication of invasive species involves augmenting wild populations with genetically modified supermales. Supermales contain double YY chromosomes. When they are augmented into a wild population, destabilization and eventual extinction occurs over time due to a strongly skewed gender ratio towards males. Here, we employ a mathematical model that considers an Allee effect, but we have discovered through simulation that the presence of supermales leads to an increase in the minimal number of females needed for survival at a value higher than the mathematically defined Allee effect. Using this effect, we focus our research on exploring the sensitivity of the optimized supply rate of supermale fish to the initial gender ratio and density of the wild populations. We find that the eradication strategy with optimized supply rate of supermales can be determined with knowledge of reproductive rate and survival fitness of supermale fish.

中文翻译：

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使用YY超级男性来破坏入侵鱼类种群的稳定性。

根除入侵物种的一种可行的生物防治策略包括使用转基因超雄性增加野生种群。超人包含双YY染色体。当将它们增加到野生种群中时，由于性别比例严重偏向男性，因此随着时间的流逝，不稳定和最终灭绝。在这里，我们采用考虑了Allee效应的数学模型，但是我们通过仿真发现，超级雄性的存在导致生存所需的最小雌性数量增加，其值高于数学上定义的Allee效应。利用这种效应，我们将研究重点放在探索优化的超雄鱼供应率对野生种群初始性别比和密度的敏感性上。