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Ch 54: Campbell Biology Chapter 54: Community Ecology

About This Chapter

The Community Ecology chapter of this Campbell Biology Companion Course helps students learn the essential lessons associated with community ecology. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Community Ecology textbook chapter.

How It Works:

  • Identify the lessons in the Campbell Biology Community Ecology chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the community ecology 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:

  • Outcomes of interspecific competition
  • Different kinds of prey
  • Factors that impact species richness
  • Models of community organization
  • What ecological imbalance is
  • Kinds of ecological succession
  • Biogeographic factors that impact community diversity
  • Effects of pathogens on biological communities

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8 Lessons in Chapter 54: Campbell Biology Chapter 54: Community Ecology
Test your knowledge with a 30-question chapter practice test
Interspecific Competition, Competitive Exclusion & Niche Differentiation

1. Interspecific Competition, Competitive Exclusion & Niche Differentiation

What happens when two similar species that consume the same resources occupy the same space? Interspecific competition, that's what! Watch our video lesson to learn about the outcomes of this ecological battle.

What is Prey? - Definition & Examples

2. What is Prey? - Definition & Examples

What makes an organism a prey item? Can prey become predator? Prey come in all shapes and sizes, and many have special adaptations to help them survive.

Species Richness: Definition & Determining Factors

3. Species Richness: Definition & Determining Factors

In this lesson, you'll learn what species richness is and what factors can influence the index of species richness. You'll also discover why it is an important index to measure in terms of conservation.

Bottom-Up & Top-Down Models of Community Organization

4. Bottom-Up & Top-Down Models of Community Organization

How can a community be organized? Maybe you've done some community organization yourself, either from the bottom up or the top down. Now, take a look at how this occurs in nature.

What is an Ecological Imbalance? - Definition & Explanation

5. What is an Ecological Imbalance? - Definition & Explanation

In this lesson, you will learn the definition of ecological imbalance and explore some examples of ecosystems that have shifted to a state of imbalance. Test your new knowledge at the end with a quiz.

Ecological Succession: From Pioneer to Climax Communities

6. 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.

Biogeographic Factors Affecting Community Diversity

7. Biogeographic Factors Affecting Community Diversity

Ever wonder why polar bears don't eat penguins? Or why tigers don't live in North America? Even if you haven't asked such important questions, this lesson on biogeography will help you understand why animals live where they do.

Impact of Pathogens on Biological Communities

8. Impact of Pathogens on Biological Communities

Have you ever thought about how something like a tiny virus can impact whatever organism it infects? And have you thought about how that will affect the health of an entire community? This lesson explores these topics.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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