Week 5.


pairs of students will present primary research papers regarding genes and behaviors.


check back, these papers will be posted 1 week before class.

Discussion Questions:
Non-presenting students are expected to have read and be prepared to discuss 2 of the 5 papers that are being presents. Answers to the presenters' Discussion Questions should be typed and brought to class and amended during the discussion.
Discussin Questions will be posted 1 week before presentation with papers.

September 27th: Male Strategies and Assessment

Males of many species come in alternate morphs. For example the image here shows an African Cichlid, Lamprologus callipterus. In this species, males are either large "nest males" who collect shells in which the female will lay her eggs, and the very small "dwarf males" hide hoping to sneak a mating with the female. (for more detail see Taborsky, 2001)

Sinervo chapter 9
Gross, M.R. (1996) Alternative reproductive strategies and tactics: diversity within sexes. TREE 11:92-98.

The following examples will be used in class as well:
Zimmerer & Kallman (1989) Genetic Basis for Alternative Reproductive Tactics inthe Pygmy Swordtail Xiphophorus nigrensis. Evolution: 43:1298-1307/
Tomkins and Brown (2004) Population density drives the local evolution of a threshold dimorphism. Nature 451:1099-1103.