Ecological Genetics

Biol 5240

Quick Quiz Questions


Evans and Sheldon. 2012. Quantitative genetics of carotenoid-based color: heritability and persistent natal environmental effects in the Great Tit. The American Naturalist 179:74-94

  1. Why is it important to understand the genetic basis of coloration?
  2. Why has it been previously assumed that carotenoid-based coloration is only a function of the environment?  Why is this assumption unjustified?
  3. Describe some of the sources of variance that were included in their analyses that you may not have thought of before.  Explain why one of these is important.
  4. What was the purpose of the cross-fostering experiment?  Did cross-fostering influence the estimate of heritability?  What is the significance of this finding?
  5. Give an example of an environmental effect that persisted through multiple life stages.  Are you surprised by this result?  Why or why not?