Biodiversity

Learning Outcomes and Performance Indicators

  • Understanding the Interrelatedness:

    • Analyze how health, environment, and society are interconnected.

  • Definition and Importance of Biodiversity:

    • Understand and elaborate on the concept of biodiversity and why it is crucial for ecosystems and human life.

  • Implications of GMOs:

    • Discuss the effects of genetically modified organisms and their potential future impacts.

  • Case Study on Whale Ecotourism:

    • Examine the whale ecotourism in Oslob, Cebu, evaluating its economic and ecological benefits.

  • Ethics of GMOs:

    • Analyze the ethical considerations surrounding the use of GMOs.

Biodiversity and Its Significance

  • Definition of Biodiversity:

    • Encompasses genetic, species, and ecosystem diversity.

    • Fundamental for ecosystem stability, clean water, food security, and health.

  • Levels of Biodiversity:

    1. Genetic Diversity:

    • Variability among individuals and populations within species, allowing adaptation to changes.

    1. Species Diversity:

    • Consists of species richness (number of species in an area) and species evenness (the relative abundance of each species).

    1. Ecosystem Diversity:

    • Variety of habitats, biological communities, and ecological processes, such as forests and grasslands.

Biodiversity in the Philippines

  • Mega-Diverse Country:

    • The mega-diverse countries are those that house the largest indices of biodiversity, including a large number of endemic species. This concept was first proposed in 1988 by Russell Mittermeier and is now used to raise awareness to the protection of natural biodiversity, and particularly in the countries where this is more abundant and threatened.

    • The Philippines is one of 18 mega-diverse countries, home to 52,000 described species with a high percentage of endemism (49% of terrestrial wildlife).

    • Noteworthy biodiversity hotspots, with over 900 species threatened.

Impact of Biodiversity on Human Health

  • Dependence on Biodiversity:

    • Provides ecosystem services essential for health, including clean water and food.

    • Biodiversity loss can lead to food insecurity and increased disease prevalence.

  • Health Contributions:

    • Medicinal discoveries derive from biodiversity; loss of species diminishes potential treatments.

Threats to Biodiversity

  1. Pollution:

    • Industrial and household pollution adversely affects numerous species.

  2. Habitat Alteration and destruction:

    • Deforestation leads to species decline (e.g., Philippine Eagle).

  3. Over-exploitation:

    • Unsustainable practices like illegal logging and overfishing threaten biodiversity.

  4. Climate Change:

    • Global warming modifies habitats (e.g., polar bear habitats diminish).

  5. Invasive Species:

    • Introduction of non-native species disrupts local ecosystems (e.g., golden apple snail).

Nutritional Importance of Biodiversity

  • Food Production:

    • Supports the genetic basis necessary for sustainable agriculture, affecting nutrition.

    • Species diversity impacts food composition and nutritional profiles.

Traditional Medicine and Biodiversity

  • Role of Traditional Medicine:

    • Used by a significant portion of the global population, depending on plant and animal resources.

Infectious Diseases and Biodiversity

  • Ecosystem Disturbances:

    • Human activities disrupt ecosystems, exacerbating infectious disease spread.

    • Significant rise in diseases associated with wildlife and changing ecosystems.

Climate Change and Biodiversity

  • Interactions of Climate and Ecosystems:

    • Biodiversity is integral to ecosystem functioning and is influenced by climate conditions, impacting health and services.

Genetically Modified Organisms (GMOs)

  • Understanding GMOs:

    • The process of creating GMOs through isolating and inserting specific genes to enhance certain desired traits.

  • Health and Environmental Implications:

    • Assessment of GMO effects on animal welfare, pest resistance, and genetic contamination.

Ethical Considerations of GMOs

  • Debates on GMOs:

    • Discussions around their safety, impact on environment, and benefits versus risks.

  • Applications of GMOs:

    • Potential uses in vaccines, sustainable food production, and medical research.

Protecting Biodiversity

  • Legislative Measures:

    • Implement policies to conserve endangered species.

  • Public Awareness and Education:

    • Increasing understanding about biodiversity leads to better conservation actions.

  • Conservation Technologies:

    • Use of renewable energy and biotechnology to aid conservation efforts.