Discussion Questions for Trophic Cascades Figure 1 o How do you interpret the figure? o What piece of information does this give us? Figure 3 o How do you interpret the figure? o What piece of information does this give us? What is a trophic cascade and how do they implement themselves? How pervasive are trophic cascades in reality? What does the concept of trophic cascades offer for management decisions? Quiz questions? 1.) Who were the authors of this paper? 2.) If the population of piscivores increases in a lake, what happens to the density of phytoplankton? 3.) time lag question 4.) A large abundance of planktivores results in a community of what sized zooplankton? Plan of attack for week 3 Announcements and lingering questions: 10 minutes Quiz and Discussion of the reading:20-25 minutes Lecture on fish populations and autecology in streams: 30 minutes Becker key lab activity: 60 minutes Background for BMC field trip: 30 minutes Free time to work on dichotomous keys: Rest of time