12_BehavioralEvol

12_BehavioralEvol - Announcements SI review session tonight...

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1 Announcements SI review session tonight 7-9 PM in THH 201 and 301 Extra Hardy Weinberg questions (and answers) posted under Course Information / Exam Preparation Dr. Edmands’ extended office hours this week Monday 11 AM - 12:30 PM Tuesday 9 - 11 AM Wednesday 3 - 5 PM Friday 3 - 5 PM
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2 51.1- 51.3 Behavioral Evolution
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3 What Is Behavior? Behavior What an animal does and how it does it Includes muscular and nonmuscular activity QuickTimeª and a Sorenson Video 3 decompressor are needed to see this picture.
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4 Proximate vs. Ultimate Questions Proximate, or “how,” questions about behavior Focus on the environmental stimuli that trigger a behavior Focus on the genetic, physiological, and anatomical mechanisms underlying a behavioral act
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5 Ultimate, or “why,” questions about behavior Address the evolutionary significance of a behavior
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6 Schooling in fish How? Sense movement of other fish by sight (eyes on sides of head) and lateral line Why? Minimize predation, reduce friction
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7 Ethology The study of behavior, especially under natural conditions Discipline developed in mid-1900s (Tinbergen, von Frisch, Lorenz ) QuickTimeª and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTimeª and a TIFF (Uncompressed) decompressor are needed to see this picture.
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8 Innate, no modification through learning Originates and is modified by learning Highly stereotyped Fixed, little variation Highly flexible Condition dependent Yawning Smiling Language acquisition Fixed action pattern
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Fixed Action Patterns (FAPs) Sequence of unlearned behaviors that
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12_BehavioralEvol - Announcements SI review session tonight...

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