Study questions chapter 3

Study questions chapter 3 - NPB 102 Animal Behavior Winter...

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1 NPB 102, Animal Behavior Winter 2011 Study questions for Chapter 3 1. What is meant by the phrase “interactive theory of development” and how is it relevant to development of behavior in particular? Explain how this theory involves both the “internal environment” and the “external environment.” 2. Describe evidence suggesting that changes in worker bee behavioral phenotype are related to changes in gene activation. Use the information discussed in lecture and in the text to explain how this is or is not consistent with the “interactive theory of development?” 3. What time of day do most songbirds migrate? Propose 1 proximate hypothesis for how they can orient (i.e., tell what direction is what) at this time of day. Can you think of any ultimate hypotheses for why they do it at this time of day? 4. Describe three hypotheses to explain the presence of blackcap warblers (which historically always wintered in sub-Saharan Africa) in Britain during the winter. Which of these hypotheses was favored by the researchers who studied this phenomenon, and how have those researchers managed to narrow in on that explanation? What assumption involving the rules the birds follow for choosing orientation direction in the autumn must be true for the researcher to be able to draw the conclusion they did? Propose a straightforward experiment that would experimentally test for the validity of this assumption. 5. Given that migratory behavior of blackcap warblers has a genetic basis, how would a new population wintering in a new area (e.g., Britain) originate? A good answer to this question will describe a logical evolutionary scenario involving the adaptive significance of a particular suite of migratory phenotypic traits and how it affects evolutionary change in the population. 6. A graph of “midparent residual onset of migratory activity” versus “midoffspring residual onset of migratory activity” reveals a positive relationship with substantial scatter around the best-fit line. What is the primary significance of the positive relationship? What do you think is significant about the substantial scatter around the best fit line? 7.
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Study questions chapter 3 - NPB 102 Animal Behavior Winter...

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