About This Chapter
How It Works:
- Identify the lessons in the Campbell Biology Conservation Biology and Global Change chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the conservation biology and global change topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- The impact of biodiversity in ecosystem stability
- Causes and effects of habitat fragmentation
- The impact of introduced species on ecological balance
- Effect of humans on ecosystems and the global environment
- Approaches to population conservation
- What corridors do for habitats
- The impact of greenhouse gases on global warming
- Consequences of ozone layer thinning
- Human activities that endanger the environment
- Challenges of sustainable development
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1. What is Biodiversity? - Definition and Relation to Ecosystem Stability
Biodiversity refers to the variety of life on earth that exists on all levels of biological organization. Explore the definition of biodiversity, the types of biodiversity, and study biodiversity and its relation to ecosystem stability.
2. Habitat Fragmentation: Effects, Definition & Causes
Civilization development, such as roads and housing, have conflicted with nature for thousands of years and also has had a signficant impact on the environment. Learn about this process of separating organisms from their resources called habitat fragmentation, the dire implications for the habitat and biodiversity, and potential solutions.
3. How Introduced and Invasive Species Alter Ecological Balance
Introduced species are new organisms brought into an ecological environment that affect the ecological balance of that environment. Compare and contrast characteristics of an introduced species versus an invasive species, and how both alter the ecological balance of an environment.
4. Over-Exploitation: How Humans Affect Ecosystems By Decreasing Species Populations
The process of harvesting species from a natural habitat at a rate faster than the species can repopulate is called over-exploitation. Learn about overfishing and how humans negatively affect ecosystems by decreasing species populations.
5. Small-Population Approach to Population Conservation
Small populations are those with critically low numbers, which are on the verge of extinction. Learn the significance of genetic variation, extinction vortexes, and the minimum viable population in small-population conservation.
6. Declining-Population Approach to Population Conservation
Declining populations are those with notable decreases in their overall number of organisms. Analyze the various reasons contributing to population decline through examples of real-world conservation efforts.
7. Landscape Structure & Biodiversity: Fragmentation, Edges & Corridors
The structure and biodiversity of a landscape are the primary focus of the study of landscape ecology. In this lesson, learn how spatial arrangements like fragmentation, edges, and corridors affect biodiversity and ecological processes over time.
8. Landscape Ecology: Establishing Protected Areas
Landscape ecology addresses how spatial arrangements of habitats affect ecological processes, including the abundance and distribution of organisms. Review the challenges considered when establishing areas designed to protect the endemic species and biodiversity hot spots by creating nature reserves.
9. Human Impacts on the Environment
Human activities have their impacts on the environment which are usually negative effects. Learn about how humans are destructive to the environment, and how this causes global climate change, habitat loss, and overharvesting.
10. Fossil Fuels, Greenhouse Gases, and Global Warming
Fossil fuels and greenhouse gases are some of the environmental factors that contribute to global warming. Learn about these factors and how humans affect the carbon cycle, and perhaps understand that global warming isn't the end of the world as yet.
11. The Ozone Layer: Importance and the Harmful Effects of Thinning
The ozone layer of the Earth absorbs the ultraviolet radiation coming from the Sun. Learn about the importance of ozone, discover how CFCs break down the ozone, explore the early discoveries about harmful effects of CFCs and the thinning of the ozone layer, and determine policies in place to protect the ozone.
12. Human Behaviors that Threaten Environmental Sustainability
Human development habitually threatens environmental sustainability. Examine human behaviors, and how they affect the natural environment, environmental sustainability through population growth, resource depletion, and pollution.
13. Sustainable Development within Environmental Limits
Sustainable Development describes advancements or projects that can be enacted without significantly impeding environmental health. Explore the influence of natural replenishment on this principle, and the environmental limits considered in protecting future generations' resources.
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Other chapters within the Campbell Biology: Online Textbook Help course
- Campbell Biology Chapter 1: The Themes of Biology, and Scientific Inquiry
- Campbell Biology Chapter 2: The Chemical Context of Life
- Campbell Biology Chapter 3: Water and Life
- Campbell Biology Chapter 4: Carbon and the Molecular Diversity of Life
- Campbell Biology Chapter 5: The Structure and Function of Large Biological Molecules
- Campbell Biology Chapter 6: A Tour of the Cell
- Campbell Biology Chapter 7: Membrane Structure and Function
- Campbell Biology Chapter 8: An Introduction to Metabolism
- Campbell Biology Chapter 9: Cellular Respiration and Fermentation
- Campbell Biology Chapter 10: Photosynthesis
- Campbell Biology Chapter 11: Cell Communication
- Campbell Biology Chapter 12: The Cell Cycle
- Campbell Biology Chapter 13: Meiosis and Sexual Life Cycles
- Campbell Biology Chapter 14: Mendel and the Gene Idea
- Campbell Biology Chapter 15: The Chromosomal Basis of Inheritance
- Campbell Biology Chapter 16: The Molecular Basis of Inheritance
- Campbell Biology Chapter 17: Gene Expression: From Gene to Protein
- Campbell Biology Chapter 18: Regulation of Gene Expression
- Campbell Biology Chapter 19: Viruses
- Campbell Biology Chapter 20: DNA Tools and Biotechnology
- Campbell Biology Chapter 21: Genomes and Their Evolution
- Campbell Biology Chapter 22: Descent With Modification: A Darwinian View of Life
- Campbell Biology Chapter 23: The Evolution of Populations
- Campbell Biology Chapter 24: The Origin of Species
- Campbell Biology Chapter 25: The History of Life on Earth
- Campbell Biology Chapter 26: Phylogeny and the Tree of Life
- Campbell Biology Chapter 27: Bacteria and Archaea
- Campbell Biology Chapter 28: Protists
- Campbell Biology Chapter 29: Plant Diversity I
- Campbell Biology Chapter 30: Plant Diversity II
- Campbell Biology Chapter 31: Fungi
- Campbell Biology Chapter 32: An Overview of Animal Diversity
- Campbell Biology Chapter 33: An Introduction to Invertebrates
- Campbell Biology Chapter 34: The Origin of Evolution of Vertebrates
- Campbell Biology Chapter 35: Plant Structure, Growth, and Development
- Campbell Biology Chapter 36: Resource Acquisition and Transport in Vascular Plants
- Campbell Biology Chapter 37: Soil and Plant Nutrition
- Campbell Biology Chapter 38: Angiosperm Reproduction and Biotechnology
- Campbell Biology Chapter 39: Plant Responses to Internal and External Signals
- Campbell Biology Chapter 40: Basic Principles of Animal Form and Function
- Campbell Biology Chapter 41: Animal Nutrition
- Campbell Biology Chapter 42: Circulation and Gas Exchange
- Campbell Biology Chapter 43: The Immune System
- Campbell Biology Chapter 44: Osmoregulation and Excretion
- Campbell Biology Chapter 45: Hormones and the Endocrine System
- Campbell Biology Chapter 46: Animal Reproduction
- Campbell Biology Chapter 47: Animal Development
- Campbell Biology Chapter 48: Neurons, Synapses, and Signaling
- Campbell Biology Chapter 49: Nervous Systems
- Campbell Biology Chapter 50: Sensory and Motor Mechanisms
- Campbell Biology Chapter 51: Animal Behavior
- Campbell Biology Chapter 52: An Introduction to the Ecology of the Biosphere
- Campbell Biology Chapter 53: Population Ecology
- Campbell Biology Chapter 54: Community Ecology
- Campbell Biology Chapter 55: Ecosystems and Restoration Ecology