The impact of toxins on competition dynamics of three species in a polluted aquatic environment Article Swipe
Yuyue Zhang
,
Jicai Huang
,
Qihua Huang
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3934/dcdsb.2020219
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3934/dcdsb.2020219
Accurately assessing the risks of toxins in polluted ecosystems and finding factors that determine population persistence and extirpation are important from both environmental and conservation perspectives. In this paper, we develop and study a toxin-mediated competition model for three species that live in the same polluted aquatic environment and compete for the same resources. Analytical analysis of positive invariance, existence and stability of equilibria, sensitivity of equilibria to toxin are presented. Bifurcation analysis is used to understand how the environmental toxins, plus distinct vulnerabilities of three species to toxins, affect the competition outcomes. Our results reveal that while high concentrations lead to extirpation of all species, sublethal levels of toxins affect competition outcomes in many counterintuitive ways, which include boosting coexistence of species by reducing the abundance of the predominant species, inducing many different types of bistability and even tristability, generating and reducing population oscillations, and exchanging roles of winner and loser in competition. The findings in this work provide a sound theoretical foundation for understanding and assessing population or community effects of toxicity.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3934/dcdsb.2020219
- https://www.aimsciences.org/article/exportPdf?id=2ad1018e-be3b-44f8-9c63-6cadad33b755
- OA Status
- diamond
- Cited By
- 1
- References
- 35
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3038733543
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W3038733543Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3934/dcdsb.2020219Digital Object Identifier
- Title
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The impact of toxins on competition dynamics of three species in a polluted aquatic environmentWork title
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2020Year of publication
- Publication date
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2020-07-10Full publication date if available
- Authors
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Yuyue Zhang, Jicai Huang, Qihua HuangList of authors in order
- Landing page
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https://doi.org/10.3934/dcdsb.2020219Publisher landing page
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https://www.aimsciences.org/article/exportPdf?id=2ad1018e-be3b-44f8-9c63-6cadad33b755Direct link to full text PDF
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YesWhether a free full text is available
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diamondOpen access status per OpenAlex
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https://www.aimsciences.org/article/exportPdf?id=2ad1018e-be3b-44f8-9c63-6cadad33b755Direct OA link when available
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Population, Biology, Competition (biology), Ecosystem, Ecology, Storage effect, Sociology, DemographyTop concepts (fields/topics) attached by OpenAlex
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1Total citation count in OpenAlex
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2022: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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