Section outline

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    biodiversity of planetBiodiversity refers to the variety of living species on Earth. It encompasses a vast network of both simple and complex organisms, with estimates ranging from about five million to one trillion and beyond. This network provides nature with clean water, air, fertile soil, climate control, possible remedies, food and nutrition, recreation and restoration, and stimulated inspiration. However, this important living network is vulnerable and in danger. Millions of plant and animal species are at risk of extinction and/or gradual elimination. The intensive extraction of certain components of biodiversity in the name of growth and development has greatly impacted our ecological and natural living equilibrium. To avoid irreversible natural disasters, the decline of biodiversity must be stopped immediately. This will provide time and the much-needed opportunity to restore biological complexities, and ecosystems that have been impacted.  The image shows how animal and plant species interact with inorganic and organic components in the Earth's ecosystems (Image: Waneene C. Dorsey, Grambling State University).


    Upon completion of this module, you will be able to:
    1. Describe methods and techniques used to measure and assess biodiversity, including species richness, species abundance, and diversity indices.
    2. Identify and analyze various threats to biodiversity, such as habitat loss, pollution, climate change, invasive species, and overexploitation.
    3. Discuss and evaluate conservation strategies and management practices aimed at preserving biodiversity, such as protected areas, habitat restoration, sustainable resource management, and captive breeding programs.
    4. Identify techniques for monitoring population dynamics, distribution, and abundance of species.
    To achieve these objectives: 
    1. Read the Module 3 Introduction.
    2. Read Chapter 3 in Pressbooks.
    3. Complete the Chapter 3 Focused Reading Quiz.

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