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article · Chemistry and Ecology

Effects of chemical contaminants on the ecology and evolution of organisms a review

202360 citationsDelta State University

In plain language

Chemical contaminants present in the environment pose substantial risks to both the ecological balance and the evolutionary trajectories of living organisms. These substances cause direct physiological disruptions, alter behavioural patterns, and lower reproductive success across multiple levels of biological organisation. Beyond these immediate consequences, chemical pollutants act as selective pressures that alter genetic diversity, thereby steering evolutionary shifts within wild populations. Because these environmental effects are multifaceted, effectively addressing them requires a conceptual framework that accounts for the interconnectedness of ecological systems. Implementing dedicated chemical strategies focused on sustainability is essential to counter these disruptions, protect fragile ecosystems, safeguard human health, and foster harmonious coexistence with the natural world.

Key takeaways

  • Chemical contaminants cause direct physiological disruptions, behavioural alterations, and reduced reproductive success in organisms.
  • Chemical pollutants impose selective pressures and alter genetic diversity, actively driving evolutionary processes within populations.
  • A conceptual framework accounting for ecological interconnectedness is necessary to comprehend and alleviate the effects of contamination.
  • Establishing chemical strategies for sustainability is vital for protecting ecosystem stability and human health.

Why it matters

Chemical pollution extends far beyond isolated toxic events by fundamentally reshaping the genetics and evolutionary trajectories of living species. Understanding how pollutants disrupt physiology, behaviour, and genetic diversity is critical for guiding broader conservation efforts and regulatory policies, ensuring that industrial and agricultural activities do not permanently undermine the resilience of natural ecosystems or compromise human health.

Commercialisation angle

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Abstract

Chemical contaminants in the environment have become a growing concern due to their detrimental effects on the ecology and evolution of organisms. Understanding the impacts of these contaminants is crucial for mitigating their consequences and promoting sustainable practices. This study aims to examine the direct and indirect effects of chemical contaminants on organisms, explore their role in driving evolutionary processes, and provide a conceptual framework for understanding the ecological and evolutionary impacts of contaminants. A comprehensive review of existing literature and case studies was conducted to assess the effects of chemical contaminants on organisms at various levels of biological organisation. Chemical contaminants have direct effects on organisms, including physiological disruptions, behavioural changes, and reduced reproductive success. These contaminants also drive evolutionary processes by imposing selective pressures and altering genetic diversity within populations. The effects of chemical contaminants on the ecology and evolution of organisms are far-reaching and multifaceted. It is crucial to develop a conceptual framework that considers the interconnectedness of ecological systems to understand and mitigate the impacts of contaminants. Implementing a chemical strategy for sustainability is vital to safeguarding ecosystems, human health, and promoting a harmonious coexistence with the natural world.

Research topics

  • Environmental Toxicology and Ecotoxicology
  • Ecosystem dynamics and resilience

Read the original research

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DOI: 10.1080/02757540.2023.2284158

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