BIOL 230 Midterm: Topic1 practice questions ANSWERS
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1a) what is the name of the effect graphed below? (there is only 1 species of wolf just treat density here as basically the same as abundance. The y axis refers to the species richness of all the other species in the community besides wolves. ) Predator-mediated coexistence: explain how it operates. (2 points) The predator suppresses the abundance of the competetively dominant. Prey, precluding competitive exclusion: is this a neutral or non-neutral process, and why? (2 points) It depends on differences among the prey in terms of. Competitive ability. (not to mention differences between predator and. Prey. : the graph below shows the immigration and extinction rates (species/year) for a small island far from the mainland that was hit by a hurricane. You do some field work on the island and count 40 species a year after the storm. Equilibrium because s will stay the same, dynamic because there is.
