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Understanding Biodiversity: Importance, Levels, and Threats

This educational resource explores the concept of biodiversity, defining its significance as the variety of life at all structural levels, including genetic, species, and ecosystem diversity. It outlines the four levels of biodiversity—genes, individuals, populations, and species—along with real-world examples. Additionally, it addresses the five significant threats to biodiversity caused by human activities, such as habitat loss, invasive species, pollution, human overpopulation, and overharvesting. Understanding these factors is crucial for the protection of our planet's ecosystems.

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Understanding Biodiversity: Importance, Levels, and Threats

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  1. Learning Targets“I can…” • Define “biodiversity” • List the four levels of biodiversity • Provide an example of each of the four levels of biodiversity. • State the five biggest threats to biodiversity in our world. • Explain how species diversity is decreased by human disturbance under most circumstances.

  2. Biodiversity Chapter 6: Humans in the Biosphere

  3. What is biodiversity? • 1. Biodiversity is: • a. the variety or richness of life at all structural levels (molecular/genetic, species, ecosystem). • b. an essential renewable resource. • c. exploited and depleted by human activities • 2.The current rate of biodiversity loss is comparable to previous extinction events.

  4. What is Biodiversity? Journey through the Ndoki Forest

  5. What is Biodiversity? 3. The variety of life at all levels of organization a.Genes b. Individuals c. Populations d. Species e. Communities f. Ecosystems g. Global

  6. What is Biodiversity? 4. Example • California • Congo Biological Diversity Worksheet

  7. How do humans affect biodiversity?

  8. How do humans affect biodiversity? H Habitat loss, including that caused by human-induced climate change. I Invasive species harmful aliens, including predators, diseases, and competitors that displace native species P Pollution Oil spills, human agricultural waste, fertilization, pesticides, acid deposition, greenhouse gases etc P Population, Human overpopulation to be exact, a root cause of the other four factors O Overharvesting, Overuse hunting, fishing, gathering

  9. References • http://www.ngsprints.co.uk/images/M/459860.jpg • http://www.digitalfrog.com/resources/archives/strata.jpg • http://www.geography.hunter.cuny.edu/~tbw/wc.notes/15.climates.veg/veg.images/rainforest/rainforest.structure.diagram.jpg • http://www.hhmi.org/biointeractive/putting-food-table?utm_source=BioInteractive+News&utm_campaign=ecda1a5c54-BioInteractive_News_Vol_299_2_2014&utm_medium=email&utm_term=0_98b2f5c6ba-ecda1a5c54-69212481

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