About This Chapter
AEPA General Science: Community & Population Ecology - Chapter Summary
This chapter was assembled to aid in your review of the relationship between different species populations and their ecosystems. Follow along in this series of short, engaging lesson videos and watch our professional instructors explain the levels of an ecosystem, the factors that affect population movement and growth, and social behaviors within populations. Upon finishing, you should be better-prepared for questions on the AEPA General Science certification exam about:
- Levels of ecology
- Competition between different species of an ecosystem
- Importance of species diversity
- Interactions between predators and prey
- Differences between mutualism, commensalism and parasitism
- Relationships between population growth, movement and the ecosystem
- Migration, colonization and carrying capacity
- Habitat fragmentation and metapopulations
- Social behavior within species
These lessons are mobile-device compatible so that you can study them on the go as well as at your desk. They're followed by short quizzes that generally contain no more than five questions in multiple-choice form. The dashboard provides access to a feature that permits you to ask questions of the experts, and you can also track your progress through the chapter.
AEPA General Science: Community & Population Ecology Objectives
Future science teachers take the AEPA General Science certification exam to show their understanding of the sciences as part of their certification process. This computer-based exam is composed of 150 multiple-choice questions which are administered in a three-hour testing session. When you take this exam, you can expect 25% of the material covered to belong to the Life Science domain. This is where you'll find some questions about the relationships between the organisms of an ecosystem and the factors the affect their populations. The lessons of this chapter have been put together to help you review these topics so that you will be able to answer these questions in an effective manner.
1. The Environment, Levels of Ecology and Ecosystems
Do you know the difference between an environment and an ecosystem? In this lesson, you'll find out what makes an environment, and what makes an ecosystem. You'll also learn what ecology is and some of the ways that scientists study ecology using organisms, populations, communities, ecosystems and even the entire biosphere.
2. 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.
3. What is Species Diversity? - Definition, Importance & Examples
Have you ever wondered how many species live on Earth? Earth is full of amazing creatures. In this lesson, you will learn about the importance of species diversity. At the end, test your knowledge with a quiz.
4. Predator/Prey Interactions, Camouflage, Mimicry & Warning Coloration
You probably know that skunks can be quite stinky, bees sting and monarch butterflies are pretty, but do you know why? This lesson will introduce you to the reasons why some animals look or act the way they do and how these things relate to the predator/prey relationship.
5. Symbiotic Relationships: Mutualism, Commensalism & Parasitism
If your cat or dog has ever had fleas, you've witnessed symbiosis in action. In this lesson, learn the many types of symbiosis in biology, and how these relationships can have a positive, negative, or neutral effect on the individual species.
6. Populations: Density, Survivorship and Life Histories
Have you ever wondered how biologists determine the populations of animals in a particular geographic area? Watch this video lesson to find out, and discover how scientists look at the survivorship and life histories of many different species.
7. Carrying Capacity, Migration & Dispersion
Have you ever wondered why some types of birds fly south in the winter or why some animals form territories? Watch this video to learn about a species' maximum growth capabilities, the way its members group themselves and why they might migrate to new locations every year.
8. Dispersal, Colonization, and Island Biogeography
Have you ever gone in your backyard and discovered a wild raspberry bush that has never been there before? How did it get there? Why is there only one bush year after year? In this lesson, you'll study how plant and animal species colonize in new areas through dispersal and immigration and how some species thrive in a new area while others fail.
9. 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.
10. Social Behavior: Agonistic, Dominance Hierarchies, & Territoriality
Instead of using words, animals communicate with each other through social behaviors. These actions between individuals may be used to establish rank, defend home and breeding sites, and compete for resources.
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Other chapters within the AEPA General Science (NT311): Practice & Study Guide course
- General Science: Scientific Inquiry
- General Science: Scientific Laws & Theories
- General Science: Scientific Data & Analysis
- General Science: Laboratory Equipment & Safety
- General Science: Science & Society
- General Science: Science in Daily Life
- General Science: Organization of Matter
- General Science: Characteristics of Matter
- General Science: Atomic Structure
- General Science: Nuclear Chemistry
- General Science: Energy & Matter
- General Science: Simple Compounds & Chemical Formulas
- General Science: Types of Chemical Reactions
- General Science: The Mole Concept
- General Science: The Periodic Table
- General Science: Chemical Reactions
- General Science: Equilibrium
- General Science: Acid-Base Chemistry
- General Science: Solutions & Solubility Factors
- General Science: Physics & Motion
- General Science: Newton's Laws
- General Science: Analyzing Motion
- General Science: Analyzing Forces
- General Science: Electrical Concepts
- General Science: Magnetic Fields & Forces
- General Science: Electromagnetic Spectrum
- General Science: Waves, Optics & Sound
- General Science: Cell Structure & Function
- General Science: Cell Reproduction & Division
- General Science: Biochemistry of Life
- General Science: Characteristics of Living Organisms
- General Science: Plant Structures & Functions
- General Science: The Circulatory System
- General Science: The Nervous System
- General Science: The Immune & Endocrine Systems
- General Science: Other Physiological Systems
- General Science: Reproduction & Development
- General Science: Basic Genetics
- General Science: DNA Transcription & Translation Process
- General Science: Genetic Engineering
- General Science: Evolution
- General Science: History of Life
- General Science: Ecosystems
- General Science: Earth Materials
- General Science: Rocks & Minerals
- General Science: Historical Geology
- General Science: Erosion, Weathering & Wasting
- General Science: Earth's Structure & Processes
- General Science: Plate Tectonics
- General Science: The Water Cycle
- General Science: Oceans
- General Science: Glaciers
- General Science: Other Bodies of Water
- General Science: Earth's Atmosphere & Climate
- General Science: Basic Weather Concepts
- General Science: The Solar System
- General Science: Earth, Moon & Sun
- General Science: Characteristics of the Moon
- General Science: The Universe
- General Science: Orbits of Celestial Bodies
- AEPA General Science Flashcards