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Name: Date: Class: AP Biology: Population Ecology Part 1: Read pages 1190-1197 in Campbell Biology and take notes. Part 2: Answer the following questions. 1. What is a population? (1 mark) _________________________________________________________________________ _________________________________________________________________________ 2. What does ‘population density’ mean? (1 mark) _________________________________________________________________________ _________________________________________________________________________ 3. Describe 3 methods ecologists might use to determine population density. (3 marks) _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ Page 1 of 4 Name: Date: Class: 4. What factors add and remove individuals from a population? (4 marks) _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 5. Compare and contrast clumped and uniform patterns of dispersion, with an example of each. (4 marks) _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 6. What is Demography? (1 mark) _________________________________________________________________________ _________________________________________________________________________ 7. What would happen to a population living in an environment with no external limits on the abilities of individuals to harvest energy, grow, and reproduce? (1 mark) _________________________________________________________________________ Page 2 of 4 Name: Date: Class: 8. Give an example of a population that has grown exponentially. (1 mark) _________________________________________________________________________ _________________________________________________________________________ Part 3: Circle the correct answer. 1. In the figure, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale? a) curve A b) curve B c) curve C d) curves A or C 2. In the figure, which of the following survivorship curves most applies to humans living in developed countries? a) curve A b) curve B c) curve C d) curve A or curve B Page 3 of 4 Name: Date: Class: 3. An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square kilometre (km2) in one woodlot and 20 km2 in another woodlot. What was the ecologist comparing? a) density b) dispersion c) carrying capacity d) range 4. Uniform spacing patterns in plants such as the creosote bush are most often associated with: a) patterns of high humidity b) the random distribution of seeds c) competitive interaction between individuals of the same population d) the concentration of nutrients within the population's range 5. Starting from a single individual, what is the size of a population of bacteria at the end of a 2-hour time period if they reproduce by binary fission every 20 minutes? (Assume unlimited resources and no mortality.) a) 16 b) 32 c) 64 d) 128 Page 4 of 4