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The Scientific Method and Levels of Analysis in Animal Behavior

The Scientific Method and Levels of Analysis in Animal Behavior. ZOL 313 May 14, 2008. The Scientific Method and Levels of Analysis in Animal Behavior. Lecture Objectives: Understand the scientific method and be able to identify and generate hypotheses and predictions.

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The Scientific Method and Levels of Analysis in Animal Behavior

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  1. The Scientific Method and Levels of Analysis in Animal Behavior ZOL 313 May 14, 2008

  2. The Scientific Method and Levels of Analysis in Animal Behavior • Lecture Objectives: • Understand the scientific method and be able to identify and generate hypotheses and predictions. • Distinguish between proximate and ultimate questions in the study of animal behavior and be able to generate both types of questions. • Understand the four levels of analysis of animal behavior and distinguish between questions at different levels. ZOL 313 May 14, 2008

  3. Scientific Method

  4. Scientific Method

  5. Testing Hypotheses: Beewolf nest locating Observation: Question: Hypothesis: Prediction:

  6. Testing Hypotheses: Gull eggshell removal Observation: Question: Hypothesis: Prediction:

  7. Testing Hypotheses Activity Hypotheses to explain infanticide in langurs after a new adult male takeover: 1. 2. 3.

  8. Activity: Which of the predictions listed on the right would support each of these alternative hypotheses for infanticide in langurs?

  9. Activity: asking questions in animal behavior

  10. Ultimate vs. Proximate Questions Proximate Questions: Ultimate Questions: What kind of question were we asking about the beewolfs? The black headed gulls? The langurs?

  11. 4 Levels of Analysis in Animal Behavior • Physiological mechanisms • Ontogenetic mechanisms 3. Fitness consequences 4. Evolutionary origins

  12. Prairie voles are monogamous. Most other mammals are polygynous. Why are prairie voles monogamous? Levels of Analysis Example

  13. Why are prairie voles monogamous? 1. Physiological mechanisms Pallium: Vasopressin: V1-a receptors:

  14. Why are prairie voles monogamous? 2. Ontogenetic processes V1ar gene: Experiment:

  15. Why are prairie voles monogamous? 3. Fitness consequences Experiment:

  16. Why are prairie voles monogamous? 4. Evolutionary origins

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