Study on evolution of a predator–prey model in a polluted environment
In this paper, we investigate the effects of pollution on the body size of prey about a predator–prey evolutionary model with a continuous phenotypic trait in a pulsed pollution discharge environment. Firstly, an eco-evolutionary predator–prey model incorporating the rapid evolution is formulated t...
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Vilnius University Press
2021
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oai:doaj.org-article:0b02254234c149cfacd5b79b80168b462021-12-02T17:47:37ZStudy on evolution of a predator–prey model in a polluted environment10.15388/namc.2021.26.241481392-51132335-8963https://doaj.org/article/0b02254234c149cfacd5b79b80168b462021-11-01T00:00:00Zhttps://www.journals.vu.lt/nonlinear-analysis/article/view/24148https://doaj.org/toc/1392-5113https://doaj.org/toc/2335-8963 In this paper, we investigate the effects of pollution on the body size of prey about a predator–prey evolutionary model with a continuous phenotypic trait in a pulsed pollution discharge environment. Firstly, an eco-evolutionary predator–prey model incorporating the rapid evolution is formulated to investigate the effects of rapid evolution on the population density and the body size of prey by applying the quantitative trait evolutionary theory. The results show that rapid evolution can increase the density of prey and avoid population extinction, and with the worsening of pollution, the evolutionary traits becomes smaller gradually. Next, by employing the adaptive dynamic theory, a long-term evolutionary model is formulated to evaluate the effects of long-term evolution on the population dynamics and the effects of pollution on the body size of prey. The invasion fitness function is given, which reflects whether the mutant can invade successfully or not. Considering the trade-off between the intrinsic growth rate and the evolutionary trait, the critical function analysis method is used to investigate the dynamics of such slow evolutionary system. The results of theoretical analysis and numerical simulations conclude that pollution affects the evolutionary traits and evolutionary dynamics. The worsening of the pollution leads to a smaller body size of prey due to natural selection, while the opposite is more likely to generate evolutionary branching. Bing LiuXin WangLe SongJingna LiuVilnius University Pressarticlepulse pollutionquantitative trait modelevolutionary singularity strategycontinuously stableevolutionary branchingAnalysisQA299.6-433ENNonlinear Analysis, Vol 26, Iss 6 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
pulse pollution quantitative trait model evolutionary singularity strategy continuously stable evolutionary branching Analysis QA299.6-433 |
| spellingShingle |
pulse pollution quantitative trait model evolutionary singularity strategy continuously stable evolutionary branching Analysis QA299.6-433 Bing Liu Xin Wang Le Song Jingna Liu Study on evolution of a predator–prey model in a polluted environment |
| description |
In this paper, we investigate the effects of pollution on the body size of prey about a predator–prey evolutionary model with a continuous phenotypic trait in a pulsed pollution discharge environment. Firstly, an eco-evolutionary predator–prey model incorporating the rapid evolution is formulated to investigate the effects of rapid evolution on the population density and the body size of prey by applying the quantitative trait evolutionary theory. The results show that rapid evolution can increase the density of prey and avoid population extinction, and with the worsening of pollution, the evolutionary traits becomes smaller gradually. Next, by employing the adaptive dynamic theory, a long-term evolutionary model is formulated to evaluate the effects of long-term evolution on the population dynamics and the effects of pollution on the body size of prey. The invasion fitness function is given, which reflects whether the mutant can invade successfully or not. Considering the trade-off between the intrinsic growth rate and the evolutionary trait, the critical function analysis method is used to investigate the dynamics of such slow evolutionary system. The results of theoretical analysis and numerical simulations conclude that pollution affects the evolutionary traits and evolutionary dynamics. The worsening of the pollution leads to a smaller body size of prey due to natural selection, while the opposite is more likely to generate evolutionary branching.
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| format |
article |
| author |
Bing Liu Xin Wang Le Song Jingna Liu |
| author_facet |
Bing Liu Xin Wang Le Song Jingna Liu |
| author_sort |
Bing Liu |
| title |
Study on evolution of a predator–prey model in a polluted environment |
| title_short |
Study on evolution of a predator–prey model in a polluted environment |
| title_full |
Study on evolution of a predator–prey model in a polluted environment |
| title_fullStr |
Study on evolution of a predator–prey model in a polluted environment |
| title_full_unstemmed |
Study on evolution of a predator–prey model in a polluted environment |
| title_sort |
study on evolution of a predator–prey model in a polluted environment |
| publisher |
Vilnius University Press |
| publishDate |
2021 |
| url |
https://doaj.org/article/0b02254234c149cfacd5b79b80168b46 |
| work_keys_str_mv |
AT bingliu studyonevolutionofapredatorpreymodelinapollutedenvironment AT xinwang studyonevolutionofapredatorpreymodelinapollutedenvironment AT lesong studyonevolutionofapredatorpreymodelinapollutedenvironment AT jingnaliu studyonevolutionofapredatorpreymodelinapollutedenvironment |
| _version_ |
1718379448742445056 |