Chapter 50 Study Guide: Behavioral Ecology – Step-by-Step Guidance

Study Guide - Smart Notes

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Q2. What is a behavior? What is behavioral ecology?

Background

Topic: Introduction to Animal Behavior and Behavioral Ecology

This question is testing your understanding of the definitions of 'behavior' and the field of 'behavioral ecology' in biology.

Key Terms:

Behavior: The actions or reactions of an organism, usually in response to environmental stimuli.
Behavioral Ecology: The study of the evolutionary basis for animal behavior due to ecological pressures.

Step-by-Step Guidance

Start by defining 'behavior' in a biological context. Consider what counts as a behavior (e.g., movement, communication, feeding, mating).
Think about how behavioral ecology differs from just describing behavior. What does it focus on (e.g., evolutionary and ecological reasons for behaviors)?
Try to connect the two concepts: How does understanding behavior help us study ecology and evolution?

Try answering in your own words before checking the explanation!

Q3. Distinguish between proximate and ultimate levels of behavioral causation and be able to identify proximate questions compared to ultimate questions.

Background

Topic: Proximate vs. Ultimate Causes of Behavior

This question is testing your ability to differentiate between immediate (mechanistic) and evolutionary (functional) explanations for behavior.

Key Terms:

Proximate Cause: The immediate, mechanistic explanation for how a behavior occurs (e.g., physiological or genetic mechanisms).
Ultimate Cause: The evolutionary explanation for why a behavior occurs (e.g., how it increases fitness).

Step-by-Step Guidance

Define what is meant by a proximate cause and give an example (e.g., hormonal triggers for bird singing).
Define what is meant by an ultimate cause and give an example (e.g., singing attracts mates, increasing reproductive success).
Practice distinguishing between questions: Is the question asking 'how' (proximate) or 'why' (ultimate)?

Try classifying example questions as proximate or ultimate before checking the explanation!

Q4. Do behaviors evolve? Explain.

Background

Topic: Evolution of Behavior

This question is testing your understanding of whether behaviors can be shaped by natural selection and evolve over time.

Key Concepts:

Natural selection can act on behavioral traits if they are heritable and affect fitness.
Behaviors can have genetic bases and thus be subject to evolution.

Step-by-Step Guidance

Recall the requirements for evolution by natural selection: variation, heritability, and differential fitness.
Consider whether behaviors can meet these criteria (e.g., are there genetic differences in behavior?).
Think of an example where a behavior has evolved in a population due to selection pressures.

Try explaining in your own words before checking the explanation!

Q5. What is the general pattern regarding how flexible or fixed a particular behavior is? (regarding innate versus learned behaviors)

Background

Topic: Innate vs. Learned Behaviors

This question is testing your understanding of the spectrum between fixed (innate) and flexible (learned) behaviors.

Key Terms:

Innate Behavior: Behavior that is developmentally fixed and usually inherited genetically.
Learned Behavior: Behavior that is acquired or modified through experience.

Step-by-Step Guidance

Describe what makes a behavior 'fixed' versus 'flexible.'
Consider examples of each type (e.g., reflexes vs. language acquisition).
Think about why some behaviors might be more flexible than others (e.g., environmental variability).

Try to list examples of each type before checking the explanation!

Q6. Provide an example of a behavior that is a fixed action pattern.

Background

Topic: Fixed Action Patterns (FAPs)

This question is testing your ability to recognize and provide examples of innate, stereotyped behaviors triggered by specific stimuli.

Key Terms:

Fixed Action Pattern (FAP): A sequence of unlearned, innate behaviors that is unchangeable and usually carried to completion once initiated.
Sign Stimulus: The external cue that triggers a FAP.

Step-by-Step Guidance

Recall classic examples from your textbook or lectures (e.g., egg-rolling in geese, stickleback fish aggression).
Identify the sign stimulus and the behavioral sequence.
Explain why this behavior is considered 'fixed' and not learned.

Try to recall a textbook example before checking the explanation!

Q7. Provide an example of a behavior that is learned.

Background

Topic: Learned Behaviors

This question is testing your understanding of behaviors that are acquired or modified through experience.

Key Terms:

Learned Behavior: Behavior that is shaped by experience rather than being genetically programmed.

Step-by-Step Guidance

Think of behaviors that require practice or exposure to the environment (e.g., bird song learning, dog training).
Describe the process by which the behavior is learned.
Explain how this behavior differs from innate behaviors.

Try to come up with your own example before checking the explanation!

Q8. Describe an example of a behavior that shows it has a genetic basis.

Background

Topic: Genetic Basis of Behavior

This question is testing your ability to recognize behaviors that are influenced by genes.

Key Concepts:

Some behaviors are inherited and can be traced to specific genes or genetic differences.

Step-by-Step Guidance

Recall examples from studies where genetic manipulation or breeding experiments affected behavior (e.g., maze-running in rats, fruit fly courtship).
Describe how the behavior differs between genetic lines or after gene changes.
Explain why this supports a genetic basis for the behavior.

Try to recall a research example before checking the explanation!

Q9. Provide an example that shows the importance of learning about one’s local environment.

Background

Topic: Environmental Learning

This question is testing your understanding of how learning about the local environment can affect survival and fitness.

Key Concepts:

Animals often need to learn about food sources, predators, or social cues in their specific environment.

Step-by-Step Guidance

Think of examples where animals must adapt to local conditions (e.g., birds learning migratory routes, foraging locations).
Describe how learning improves the animal’s chances of survival or reproduction.
Explain why innate behavior alone might not be sufficient in variable environments.

Try to think of a real-world example before checking the explanation!

Q10. Describe two examples in which learned experiences occurring early in life have later consequences for the animal.

Background

Topic: Early Learning and Its Effects

This question is testing your understanding of how early experiences can shape later behavior (e.g., imprinting, social learning).

Key Terms:

Imprinting: A type of learning occurring at a particular life stage that is rapid and apparently independent of the consequences of behavior.
Critical Period: A specific time during development when learning is most effective.

Step-by-Step Guidance

Recall examples such as filial imprinting in birds or song learning in songbirds.
Describe how these early experiences affect adult behavior (e.g., mate choice, navigation).
Explain why timing of learning is important in these cases.

Try to list two examples before checking the explanation!

Q11. Explain the cost-benefit approach to behavioral analysis. Be able to describe a specific example.

Background

Topic: Cost-Benefit Analysis in Behavior

This question is testing your understanding of how biologists evaluate the adaptive value of behaviors by weighing their costs and benefits.

Key Concepts:

Costs: Energy, time, or risk associated with a behavior.
Benefits: Increased survival or reproductive success.

Step-by-Step Guidance

Define what is meant by 'cost' and 'benefit' in the context of animal behavior.
Choose a behavior (e.g., foraging, mating displays) and identify its potential costs and benefits.
Explain how the balance of costs and benefits can influence whether a behavior is favored by natural selection.

Try to come up with your own example before checking the explanation!

Q12. What are 2 important things to keep in mind when doing cost-benefit analysis of non-human behavior?

Background

Topic: Interpreting Animal Behavior

This question is testing your ability to critically evaluate how we analyze animal behavior from a human perspective.

Key Concepts:

Avoid anthropomorphism (attributing human motives to animals).
Consider ecological context and evolutionary history.

Step-by-Step Guidance

List potential biases or errors when interpreting animal behavior (e.g., assuming animals think like humans).
Think about the importance of understanding the animal’s environment and evolutionary background.

Try to list two considerations before checking the explanation!

Q13. Describe an example in which costs and benefits are evaluated to predict foraging patterns.

Background

Topic: Foraging Behavior and Optimality Models

This question is testing your ability to apply cost-benefit analysis to predict how animals forage for food.

Key Concepts:

Optimal foraging theory predicts that animals will maximize benefits (energy gain) and minimize costs (energy spent, risk).

Step-by-Step Guidance

Choose a foraging scenario (e.g., birds choosing between large and small seeds).
Identify the costs (e.g., handling time, predation risk) and benefits (e.g., caloric value).
Explain how these factors influence the animal’s foraging decisions.

Try to create your own example before checking the explanation!

Q14. What is the trade-off for being a foraging generalist (like a squirrel) to a foraging specialist (like a giant panda)?

Background

Topic: Foraging Strategies

This question is testing your understanding of the advantages and disadvantages of generalist versus specialist foraging strategies.

Key Terms:

Generalist: An organism that eats a wide variety of foods.
Specialist: An organism that eats a narrow range of foods.

Step-by-Step Guidance

List the benefits and drawbacks of being a generalist (e.g., flexibility vs. competition).
List the benefits and drawbacks of being a specialist (e.g., efficiency vs. vulnerability to food scarcity).
Explain how these trade-offs affect survival and reproduction in different environments.

Try to compare the two strategies before checking the explanation!

Q15. Explain the optimal foraging hypothesis.

Background

Topic: Optimal Foraging Theory

This question is testing your understanding of how animals are predicted to forage in ways that maximize their net energy intake per unit time.

Key Formula:

Net energy gain = (energy obtained from food) - (energy expended to obtain food)

Step-by-Step Guidance

State the main prediction of the optimal foraging hypothesis.
Describe the variables that influence foraging decisions (e.g., food abundance, search time, handling time).
Explain how animals might adjust their behavior to maximize net energy gain.

Try to summarize the hypothesis in your own words before checking the explanation!

Q16. In Reto Zach’s study of foraging crows, what were the 3 decisions the crows needed to make while feeding on whelks? What was discovered and how are these decisions adaptive?

Background

Topic: Case Study in Optimal Foraging

This question is testing your ability to apply optimal foraging theory to a real-world research example.

Key Concepts:

Reto Zach studied how crows drop whelks to break them open and analyzed their decision-making.

Step-by-Step Guidance

Identify the three decisions crows must make (e.g., which whelks to pick, how high to fly, how many times to drop).
Describe what Zach discovered about the crows’ choices.
Explain how these choices maximize energy gain and are considered adaptive.

Try to recall the details of the study before checking the explanation!

Q17. Why do bumble bees refuse to feed on cherry blossoms when it is cold outside?

Background

Topic: Environmental Constraints on Behavior

This question is testing your understanding of how environmental factors (like temperature) can influence animal behavior.

Key Concepts:

Temperature can affect the energy costs and benefits of foraging.

Step-by-Step Guidance

Consider how cold temperatures might affect the energy balance for bumble bees.
Think about the cost-benefit analysis: does foraging in the cold provide enough energy to offset the costs?
Explain why bees might avoid foraging under these conditions.

Try to reason through the energy trade-offs before checking the explanation!

Q18. What is a fitness Trade-Off? Give a specific example.

Background

Topic: Fitness Trade-Offs in Evolution

This question is testing your understanding of how organisms must balance competing demands to maximize fitness.

Key Terms:

Fitness Trade-Off: A situation where an increase in one aspect of fitness leads to a decrease in another.

Step-by-Step Guidance

Define what is meant by a fitness trade-off.
Think of examples (e.g., number vs. size of offspring, foraging vs. avoiding predators).
Explain how these trade-offs affect evolutionary outcomes.

Try to come up with your own example before checking the explanation!

Q19. What is FID? How is it measured?

Background

Topic: Flight Initiation Distance (FID)

This question is testing your understanding of a behavioral measure used in animal ecology to assess risk perception.

Key Terms:

FID (Flight Initiation Distance): The distance at which an animal begins to flee from an approaching threat.

Step-by-Step Guidance

Define FID and explain its significance in behavioral ecology.
Describe the typical method for measuring FID (e.g., approach the animal at a steady pace and record the distance at which it flees).
Consider what factors might influence FID (e.g., predator type, habitat, previous experience).