About This Chapter
Biodiversity & Sustainability - Chapter Summary
Use this interesting chapter on biodiversity and sustainability at any time to study these topics. We've included subjects such as biodiversity, an overview of the Earth's biomes and the major threats to biodiversity. You'll also study the ways in which invasive and introduced species alter ecological balance and how natural events change habitats. This chapter is designed to assist you in completing the following goals:
- Identify human activities that increase the risk of natural disasters
- Explain ecological resilience
- Discuss the process of ecological succession
- Detail succession in freshwater and terrestrial ecosystems
- Outline conservation biology, habitat fragmentation and metapopulations
- Define environmental sustainability and its application
- Describe sustainable development within environmental limits
- Explore the complexities of sustainable consumption
This chapter is accessible to you 24 hours a day on any mobile device or computer for flexible studying. Along with each lesson, you'll find a short quiz to test your knowledge before taking a test or exploring other subjects. Utilize the Dashboard to keep track of your progress and to submit your questions to our instructors.
1. What is Biodiversity? - Definition and Relation to Ecosystem Stability
Imagine making a list of all of the species you have ever heard of; it would be an enormous list! There are many different species on this planet. This lesson will explore the diversity of species, as well as the different types of diversity and how diversity of life is essential for maintaining healthy ecosystems.
2. Overview of the Earth's Biomes
Biomes are defined both climatically and geographically as areas with similar factors, such as plants and animals, soil quality, and growing seasons. In this lesson, we'll learn about the five major categories of the Earth's biomes.
3. What are Major Threats to Biodiversity?
This lesson first defines biodiversity for you. Then you'll learn about the numerous threats to this biodiversity, such as deforestation, poaching and many others.
4. How Introduced and Invasive Species Alter Ecological Balance
What happens to your block when a new neighbor moves in? Something changes, right? Now think about that on an ecological scale: what happens to an environment when a new SPECIES moves in?
5. How Natural Events Change Habitats
Natural events, like earthquakes, volcanic eruptions, landslides and floods, can be very powerful and destructive. In this lesson, we will see firsthand how they can change human and wildlife habitats in both damaging and helpful ways.
6. Human Activities That Increase the Risk of Natural Disasters
Although we typically think of natural disasters as being caused by nature, today we'll be learning how humans influence both the frequency and intensity of these events.
7. Ecological Resilience
After completing this lesson, you will be able to explain what ecological resilience is, and how humans impacts increase the need for it among plants and other animals. A short quiz will follow.
8. Ecological Succession: From Pioneer to Climax Communities
Just as people grow and change so, too, do ecosystems. Watch this lesson to learn about ecological succession from the beginning stages of development to a community's ultimate destination, or climax.
9. Succession in Freshwater and Terrestrial Ecosystems
The world's many freshwater and terrestrial ecosystems are constantly changing. This lesson will discuss how these ecosystems change over time and how they recover after disturbances occur.
10. Conservation Biology, Habitat Fragmentation, and Metapopulations
It's becoming harder to conserve large, unbroken tracts of wilderness. Is there another way for conservation biologists to ensure the survival of a species? In this lesson, you'll learn about habitat fragmentation and metapopulations.
11. Environmental Sustainability: Definition and Application
Environmental sustainability allows for the needs of man to be met without jeopardizing the ability of future generations to meet their needs. Learn applications of environmental sustainability, including sustainable agriculture, forestry and energy.
12. Sustainable Development within Environmental Limits
Sustainable development is a way of meeting the needs of both present and future generations. Learn how sustainable development must work within the environmental limits so future generations can benefit from the rich resources of the environment.
13. Sustainable Consumption: Definition and Complexities
Sustainable consumption is the use of products and services that have a minimal impact on the environment so future generations can meet their needs. Learn about the benefits and the complexities that are associated with sustainable consumption.
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Other chapters within the CSET Science Subtest II Life Sciences (217): Practice & Study Guide course
- Principles of Cell Structure & Function
- The Organization & Function of Multicellular Organisms
- The Cell Cycle, Mitosis & Meoisis
- Matter & Energy Flow in Organisms
- Interdependent Relationships in Ecosystems
- Cycles of Matter & Energy Transfer in Ecosystems
- DNA & Gene Expression
- Genetics & Inheritance
- Genetic Variation & Engineering
- Overview of Biological Evolution on Earth
- The Role of Natural Selection in Biological Evolution
- Adaptation in Biological Evolution
- CSET Science Subtest 2 Life Sciences Flashcards