Kabir K M Ariful
Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
PLoS One. 2025 May 22;20(5):e0323928. doi: 10.1371/journal.pone.0323928. eCollection 2025.
Predator-prey models in ecology typically focus on direct predation without considering other interactions, such as hunting behaviors on qualitative impact and numerous diseases, which has led researchers to explore the intersection of ecology and mathematics, resulting in the development of mathematical models. This paper introduces a novel eco-epidemiological model that integrates the dynamics of infectious diseases within predator-prey interactions, factoring in direct predation, the roles of infected prey, and the influence of behavioral dynamics. By utilizing evolutionary game theory, this study explores the effects of cooperation and non-cooperation strategies on disease spread and population stability. Numerical simulations reveal that disease transmission rates and the Allee effect significantly impact population stability. Low transmission rates favor stability, while higher rates provoke periodic oscillations that can destabilize the population. The associated controlling cost reduces the risk of infection in prey populations, affecting the predator population. Moreover, the Allee effect exacerbates prey vulnerability, increasing the risk of predator extinction unless disease transmission is curtailed. Findings underscore the importance of considering behavioral dynamics and epidemic factors in conserving species and managing infectious diseases, offering valuable insights into the complex interactions that govern ecosystem health and stability.
生态学中的捕食者 - 猎物模型通常侧重于直接捕食,而不考虑其他相互作用,如狩猎行为对定性影响和众多疾病的影响,这促使研究人员探索生态学与数学的交叉点,从而推动了数学模型的发展。本文介绍了一种新颖的生态流行病学模型,该模型将传染病动态整合到捕食者 - 猎物相互作用中,考虑了直接捕食、受感染猎物的作用以及行为动态的影响。通过运用进化博弈论,本研究探讨了合作与非合作策略对疾病传播和种群稳定性的影响。数值模拟表明,疾病传播率和阿利效应显著影响种群稳定性。低传播率有利于稳定性,而较高的传播率会引发周期性振荡,可能使种群不稳定。相关的控制成本降低了猎物种群的感染风险,进而影响捕食者种群。此外,阿利效应加剧了猎物的脆弱性,增加了捕食者灭绝的风险,除非疾病传播得到遏制。研究结果强调了在保护物种和管理传染病时考虑行为动态和流行病因素的重要性,为支配生态系统健康和稳定性的复杂相互作用提供了有价值的见解。