Bio 303 Study Guide

ECOLOGY 303 Exam 3 Name______________________
Section_____________________

7 Multiple Choice (2.5pts. each) NOTE START AT 51 on scantron! 51.) A species-species interaction where both species benefit from the interaction is called: a.) Predation
b.) Amensalism
c.) Mutualism
d.) Competition 52.) Which of the following is required for two species to be competing? a.) Niches of two species overlap
b.) Two species occur in the same place
c.) A shared resource is limiting
d.) At least one population is increasing in abundance

53.) The above equation describes a.) Change in the abundance of a predator
b.) Change in the abundance of prey
c.) Change in the abundance of a competitor
d.) Change in the abundance of a mutualist 54.) b in the above equation describes a.) The competitive effects of species 2 on species 1
b.) The birth rate of a prey species
c.) The birth rate of a competitor
d.) The conversion of prey into predator

55.) The above equation was proposed by a.) Gause
b.) Grinnel
c.) Whittaker
d.) Lotka and Volterra

56.) The above equation describes a.) Change in the abundance of a predator
b.) Change in the abundance of prey
c.) Change in the abundance of a competitor
d.) Change in the abundance of an herbivore 57.) The most common outcome of competition in natural situations is a.) An exclusion of one species
b.) Periodic oscillations of competing species
c.) A reduction in the abundance of competing species
d.) A high intrinsic rate of increase 58.) Predator prey models as presented in class generally result in a.) Oscillations in abundance between predator and prey
b.) Exclusion of the prey by the predator
c.) Exclusion of the predator by the prey
d.) Exclusion of both