Reactivity and recovery in an exploited one prey two predators system at equilibrium
Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, 711103, Howrah, West Bengal, India
Accepted: 2 November 2021
Published online: 16 November 2021
How to recover the overexploited species in the marine ecosystem is an enduring challenge. We have structured one prey-two predator’s model to study how disturbances made by different harvesting strategies affect the recovery dynamics. We explore how instantaneous and average return rates jointly study recovery dynamics under disturbances caused by different harvesting strategies. We show that disturbances made by prey harvesting induce reactivity of stable equilibrium. The stability of coexistence equilibrium changes at high reactive strength but not in a sustainable way. We prove that the stable equilibrium remains reactive following disturbance made by predators harvesting but sustainable. It is shown that the average return is higher than the instantaneous return rate under disturbance caused by predator harvesting, respectively. We evaluate the disturbance made by combined harvesting effort effect on reactivity and recovery dynamics.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021