Quantitative Analysis of the Impact of Sex Ratio Bias on Ecosystems: The Case of the Sea Lamprey
DOI:
https://doi.org/10.54097/xt0cab68Keywords:
Ecosystem Stability, Biodiversity, Interspecific Relationship, Dynamic Model.Abstract
In recent years, the widely distributed invasive parasitic species, sea lamprey, through its unique sex-influenced reproductive strategy, has had far-reaching impacts on host populations and aquatic ecosystems, highlighting the importance of species interactions in ecosystems and their importance to ecological balance. To address this, an EcoGenderDynamics model was developed to analyze the ecosystem effects of deviations in the sex ratio of sea lamprey populations. This study simulated the dynamic evolutionary pattern, as a result, the expression of the function of sex ratio and resource availability, and when the average resource availability was lower than 83% of the satiation level of each sea lamprey, the percentage of male lamprey increased significantly, gradually increasing from an initial 52% to 76.4%, and then slowly increasing and stabilizing. Also, a comprehensive assessment system was established to comprehensively evaluate the specific impact indicators of the sex ratio of the lamprey in the ecosystem. The results showed that in the case of insufficient resources, the population could improve its stability through the mechanism of adjusting the sex ratio, thus achieving a certain balance with the environment through a certain degree of showing weakness, indicating the importance of the ability to change the sex ratio for the survival of the population.
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Wang C J, Schaller H A, Coates K C, et al. Climate change vulnerability assessment for Pacific Lamprey in rivers of the Western United States[J]. Journal of Freshwater Ecology, 2020, 35 (1): 29 - 55.
Romer J D, Clemens B J, Ziller J S, et al. Detection efficiency of adult Pacific lamprey passage counts at Leaburg Dam and upstream distribution in the McKenzie River (Oregon, USA) [J]. Ecology of Freshwater Fish, 2023.
Alfaro M, Xiao D. Lotka–Volterra competition-diffusion system: the critical competition case [J]. Communications in Partial Differential Equations, 2023, 48 (2): 182 - 208.
CHEN S, SHI J, SHUAI Z, et al. Global dynamics of a Lotka-Volterra competition patch moDocker M F, Potter I C. Life history evolution in lampreys: alternative migratory and feeding types [J]. Lampreys: Biology, Conservation and Control: Volume 2, 2019: 287 - 409.
Acharya A, Bandyopadhyay S, Cronin J T, et al. The diffusive Lotka–Volterra competition model in fragmented patches I: Coexistence [J]. Nonlinear Analysis: Real World Applications, 2023, 70: 103775.
Ma L, Gao J, Li D, et al. Dynamics of a delayed Lotka–Volterra competition model with directed dispersal [J]. Nonlinear Analysis: Real World Applications, 2023, 71: 103830.
XU F, GAN W. On a Lotka–Volterra type competition model from river ecology [J]. Nonlinear Analysis: Real World Applications, 2019, 47: 373 - 384.
Yan S, Du Z. Hopf bifurcation in a Lotka-Volterra competition-diffusion-advection model with time delay [J]. Journal of Differential Equations, 2023, 344: 74 - 101.
Wang Z A, Xu J. On the Lotka–Volterra competition system with dynamical resources and density-dependent diffusion [J]. Journal of Mathematical Biology, 2021, 82: 1 - 37.
Larsen L O. Physiology of adult lampreys, with special regard to natural starvation, reproduction, and death after spawning [J]. Canadian Journal of Fisheries and Aquatic Sciences, 1980, 37 (11): 1762 - 1779.
Smith S J, Marsden J E. Predictive morphometric relationships for estimating fecundity of sea lampreys from Lake Champlain and other landlocked populations [J]. Transactions of the American Fisheries Society, 2007, 136 (4): 979 - 987.
Cooper M I. Does sex ratio vary with absolute abundance in red millipedes Centrobolus Cook, 1897? [J]. International Journal of Engineering Science Invention Research & Development, 2022, 9 (1): 5 - 8.
Hess J E, Lampman R T, Jackson A D, et al. The return of the adult Pacific Lamprey offspring from translocations to the Columbia River [J]. North American Journal of Fisheries Management, 2023, 43 (6): 1531 - 1552.
WANG H, WANG H, OU C. Spreading dynamics of a Lotka-Volterra competition model in periodic habitats [J]. Journal of Differential Equations, 2021, 270: 664 - 693.
Weitkamp L A, Tuttle V, Ward E J, et al. Pacific Lamprey and Western River Lamprey marine ecology: Insight from new ocean collections [J]. North American Journal of Fisheries Management, 2023, 43 (6): 1492 - 1510.
Whitesel T A, Uh C T. Upper temperature limit of larval Pacific lamprey Entosphenus tridentatus: implications for conservation in a warming climate[J]. Environmental Biology of Fishes, 2023, 106 (5): 837 - 852.
ADAMS J V, JONES M L, BENCE J R. Using simulation to understand annual sea lamprey marking rates on lake trout [J]. Journal of Great Lakes Research, 2021, 47: S628 - S638.
Chung-Davidson Y W, Bussy U, Fissette S D, et al. Sex-dependent pheromonal effects on steroid hormone levels in sea lampreys (Petromyzon marinus) [J]. General and Comparative Endocrinology, 2020, 299: 113608.
Abbett R. An Investigation of Salmonine Reproduction and Factors Limiting Their Production in Sandy Creek, Monroe County, New York [D]. SUNY College at Brockport, 2010.
Ortega J D, Hahlbeck N, Derrickson C, et al. Thermal refuge use and parasitism: Spatiotemporal variation in anchor worm and lamprey wounds on Klamath redband trout [J]. Ecosphere, 2023, 14 (9): e4644.
Miehls S, Sullivan P, Twohey M, et al. The future of barriers and trapping methods in the sea lamprey (Petromyzon marinus) control program in the Laurentian Great Lakes [J]. Reviews in Fish Biology and Fisheries, 2020, 30 (1): 1 - 24.
Porter L L, Galbreath P F, McIlraith B J, et al. Sex ratio and maturation characteristics of adult Pacific Lamprey at Willamette Falls, Oregon [M]. Columbia River Inter-Tribal Fish Commission, 2017.
Smith S J, Marsden J E. Predictive morphometric relationships for estimating fecundity of sea lampreys from Lake Champlain and other landlocked populations [J]. Transactions of the American Fisheries Society, 2007, 136 (4): 979 - 987.
Liu Q, Yu F, Mu X. Evaluation of the Ecological Environment Quality of the Kuye River Source Basin Using the Remote Sensing Ecological Index [J]. International Journal of Environmental Research and Public Health, 2022, 19 (19): 12500.
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