Changes in the Sex Ratio of Species Based on the Lotka-Volterra Equation
DOI:
https://doi.org/10.54097/6sgrpx87Keywords:
Predator-prey models, Lotka-Volterra equations, system dynamics models.Abstract
Changes in sex ratio have an important impact on the species as well as the surrounding ecological environment. In this paper, a predator-prey model and the Lotka-Volterra equation were developed to study the population dynamics of the species and the relationship between the changes in sex ratio, taking lampreys as an example. A sex-ratio adjustment function was introduced to modify the model to simulate the effects of populations of species with different sex ratios on prey abundance compared to populations with a standard 1:1 sex ratio. At the same time, the evolutionary trend of the ecosystem under different scenarios was investigated by modelling the system dynamics of species populations with other species based on the Lotka-Volterra equation. After incorporating the quantitative relationship between food availability and the sex ratio of species populations to refine the model, the effects of changes in sex ratio on the ecosystem were again analysed.
Downloads
References
YIN Chun-Ying,LI Chun-Yang. Current status and prospects of sex differences in dioecious plants related to sex ratio [J]. Journal of Applied and Environmental Biology, 2007 (03): 419 - 425.
Gao Rui, Yan Hongwei, Liu Ying, et al. Effects of cortisol on the sex differentiation process of fish and its regulatory mechanism [J]. Journal of Dalian Ocean University, 2023, 38 (4): 726.
Avise J C, Mank J E. Evolutionary perspectives on hermaphroditism in fishes [J].
Zhang Weixin, Shen Zhifeng, Song Bo, et al. Dilemmas and reflections on soil food web regulation and its ecological function [J]. Journal of Science and Technology, 2022, 40 (3): 52 - 63.
WANG Qingqing, GAO Yan, WANG Rong. Progress on the mechanism of global change on food web structure [J]. Journal of Plant Ecology, 2021, 45 (10): 1064.
Zuo Tao, Pan Guanni, Lai Xiaoguo. Stable isotopes in simplified food webs of coral reef ecosystems in Daya Bay [J]. Journal of Aquatic Sciences, 2020, 44 (7): 1112 - 1123.
WANG Shaopeng. Food web structure and function: theoretical advances and perspectives [J]. Biodiversity, 2020, 28 (11): 1391.
ZHU Migao, LI Jun, PANG Yue, LI Qingwei. lampreys: an important model animal for biological evolution and disease research[J]. Genetics, 2020, 42 (09): 847 - 857.
YANG Shuxun, YANG Yusuan, LI Shaowen, et al. Observational studies on the somatic variation and spawning population and larvae of the brook lamprey (Lepidoptera: Lepidoptera: Lepidoptera: Lepidoptera) [J]. Biological Bulletin, 2019, 54 (02): 45 - 48+63.
LI Jun, MA Qinghua, LIU Huaixiu, et al. Study on the early development of the northeastern lampreys [J]. Journal of Aquatic Biology, 2019, 43 (04): 814 - 824.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Highlights in Science, Engineering and Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
