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Biology LibreTexts

17.4: Interactions between Species

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  • 17.4A: Symbiosis
    This page explores various symbiotic relationships, including mutualism, commensalism, and parasitism, highlighting examples such as the interaction between legumes and bacteria, barnacles on whales, and the myxoma virus's effect on rabbits. It discusses the bacterium M. leprae, its impact on leprosy, and its evolutionary relationship to M. tuberculosis.
  • 17.4B: Insecticides
    This page reviews various insecticides, detailing their types and associated ecological risks, such as toxicity, persistence, and impacts on non-target species. It emphasizes the need for effective pest control without harming beneficial insects or humans. Additionally, it discusses insect growth regulators that affect larval stages and their potential harm to non-target organisms. The text advocates for innovative insecticides to address insecticide resistance and maintain ecological balance.
  • 17.4C: Biological Control of Pests
    This page discusses biological pest control, highlighting its use of natural predators for environmental safety and sustainability. It cites successful historical examples, such as the vedalia beetle and sterile male technique. Advances in genetic engineering and other methods like sex attractants and beneficial bacteria are noted as improvements. However, the importance of maintaining ecological balance to avoid unintended consequences is emphasized.


This page titled 17.4: Interactions between Species is shared under a CC BY 3.0 license and was authored, remixed, and/or curated by John W. Kimball via source content that was edited to the style and standards of the LibreTexts platform.

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