Post-Midterm: Lecture 3

Question 1

Population dynamics

Answer 1

are changes in in populations through time

Question 2

metapopulation

Answer 2

groups of populations linked by immigration and emigration

Question 3

population’s age structure

Answer 3

the proportion of individuals that are at each possible age

• has a dramatic influence on the pop’s growth over time
• age structure diagrams an predict a population/s growth trends

Question 4

ecological footprint

Answer 4

ecological footprint concept: summarizes the aggregate land and water needed to sustain the people of a nation

• countries vary greatly in footprint size and available ecological capacity
• our ecological capacity could be limited by food, space, nonrenewable resources or buildup of wastes