Bio 374 -- Evolutionary Ecology

Grinnell College -- Fall 2003

Instructor: Jonathan (Jackie) Brown


Final Exam materials:

Here are the THREE open-book questions:

1.  Choose one of the papers we read this semester and propose a study that extends that described by the authors.  Don't propose a study that simply fixes some flaw in the authors' experiments, e.g. a lack of replication.  Rather, address an interesting question that is raised by the results of the authors' work.  Make sure you indicate how the results of your study would support or refute the hypothesis you are considering.  [Note: you may not propose a set of experiments to determine the mechanisms of individual and group selection on Silene tatarica.]

2. Read the  paper by John Thompson (Evolutionary ecology and the conservation of biodiversity.  Trends in Ecology and Evolution 11:300-303. download from website ).  Thompson describes six observations from evolutionary ecology that he claims are important to preserving biodiversity.  As a graduate of this course, I chose you as an emissary to the managers of a threatened ecosystem (which you may choose), and assigned you the task of communicating the relevance of one of the six observations to the managers.  Explain to me (a) why you chose the observation you did (i.e., why it's critical to the ecosystem's conservation), (b) how you convinced the managers that they should take heed of this principle, and (c) what changes in their management policies this implied.

3. The “keystone predator hypothesis” is an ecological theory that species diversity in communities is largely determined by predator species that feed preferentially on prey species that are competitively superior. In the absence of the keystone predator, these species exclude weaker competitors and species diversity declines. [Note: some ecologists expand this idea to include any species, whether a predator or herbivore, with similar influence.] What important concepts from evolutionary ecology does this theory ignore? Would inclusion of these ideas alter the predictions or usefulness of the ecological theory? Discuss your conclusions with reference to a concrete example.


John Thompson's paper on EE and Conservation

Here is the closed-book section of the Final

Course Information

Syllabus

Weekly Assignments

Handouts

Measuring variation in natural populations

Links

Darwin's Origin of Species Online (1st Ed.)

Reading for Thursday 9/25

Reading for Thursday 10/2

Old exams (use with caution)

1996:  Exam I, Exam II, Final
1998  Exam I, Exam II, Final