Author(s)

Zuhua Ji ¹, Jiarui Chen ¹, Zihang Wang ¹

Affiliation(s)

¹ School of Physical and Mathematical Science, Nanjing Tech University, Nanjing, 210000, China

Corresponding Author

Zuhua Ji

ABSTRACT

Lampreys are one of the oldest species in the world, living longer than dinosaurs, which is related to the ability to change the sex ratio during their lifespan. In this paper, to understand how sex ratio and food quantity affect the population growth rate of lampreys, the researchers draw inspiration from the logistics model and established a model called EcoSexChange(ESC), which results in a population initially increasing and then stabilizing, a reasonable outcome that may apply to other organisms with significant differences in consumption between sexes. Subsequently, this paper develops the Sex Ratio Adaptation Eco Impact (SRAEI) model based on the ESC model using the ABM algorithm to simulate how the population of lampreys, whose lives are divided into seven stages, grows and stabilizes. Then introduces a sudden disaster factor in the middle of the simulation, while also comparing lampreys that cannot adjust their sex ratio. The results of this paper are of great reference significance for people to analyze the population changes of lampreys in different living environments, and they are also easy to apply to other species with large differences between males and females.

KEYWORDS

Lampreys, Sex ratio, ESC model, ABM algorithm, SRAEI model

CITE THIS PAPER

Zuhua Ji, Jiarui Chen, Zihang Wang, A Study on Lamprey's Population Based on Sex-Ratio-Related Growth-Balance Model. Transactions on Computational and Applied Mathematics (2024) Vol. 4: 48-55. DOI: http://dx.doi.org/10.23977/tracam.2024.040107.

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