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Ch 28: Animal Populations and Behaviors

About This Chapter

This chapter provides you with an in-depth review of animal behaviors and the role they play in animal populations. With this chapter, you'll be able to reinforce your understanding related material you might cover in your biology class.

Animal Populations and Behaviors - Chapter Summary

When it comes to the study of animal populations, communication and behavior are important topic to consider, as behavior mechanisms and social systems play a key role in survival. These lessons give you an overview of different types of animal behavior, such as learned and innate, as well as a deeper look at the carrying capacity of animal populations. This chapter was was also built to improve your understanding of:

  • What innate behaviors are, such as reflexes, kineses and taxes
  • How imprinting, habituation and conditioning affects behaviors
  • What the pros and cons of altruism and kin selection are
  • What the functions of agonistic behavior, dominance hierarchies and territories are
  • The importance of social systems and how they differ from individual fitness
  • How biomedical progress and ecosystem's carrying capacity affect populations
  • What circadian rhythm is and why it is important to the study of animal behavior
  • How animals communicate via chemical reception, visual cues and electrical signals

8 Lessons in Chapter 28: Animal Populations and Behaviors
Innate Behavior: Reflexes, Kineses and Taxes

1. Innate Behavior: Reflexes, Kineses and Taxes

When there is a loud sound, you quickly jump without thinking. This is because this reflex is an innate, or inherited, behavior. In this lesson, we will look at reflexes as well as several other types of innate behaviors.

Learned Behavior: Imprinting, Habituation and Conditioning

2. Learned Behavior: Imprinting, Habituation and Conditioning

Ever wonder why it is easier to train your dog when you give him a treat every time he does something correct? In this lesson we will take a look at conditioning as well as several other forms of learned behavior.

Social Behavior: The Cost-Benefit of Altruism and Kin Selection

3. Social Behavior: The Cost-Benefit of Altruism and Kin Selection

Ever wonder why people are more likely to help their relatives than complete strangers? Social behavior can help explain this and other actions. Let's look at the cost of certain behaviors.

Social Behavior: Agonistic, Dominance Hierarchies, & Territoriality

4. 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.

Social Systems vs. Individual Fitness: The Queen/Worker Relationship

5. Social Systems vs. Individual Fitness: The Queen/Worker Relationship

The queen bee rules her hive while others take care of her needs. This form of behavior may seem odd, but it can be explained by looking into social systems and fitness.

Carrying Capacity of a Population: Effect of Biomedical Progress

6. Carrying Capacity of a Population: Effect of Biomedical Progress

The human population continues to grow. There are several things that contribute to this growth, including biomedical progress. In this lesson, we will look at some examples as well as what may happen if this growth continues.

The Circadian Rhythm

7. The Circadian Rhythm

You wake up in the morning and go to sleep at night. But some animals do the opposite: wake at night and sleep during the day. What determines the time of day you're active is your circadian rhythm, an internal clock that keeps daily time for you.

How Animals Communicate: Chemical, Visual & Electrical Signals

8. How Animals Communicate: Chemical, Visual & Electrical Signals

Animals use a variety of different signals to communicate with each other. In this lesson you'll identify the different types of communication signals and the situations in which they might be most useful.

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