the BIG idea Populations are shaped by interactions between organisms and the environment. Population Dynamics Populations have many characteristics. Populations respond to pressures. Human populations have unique responses to change. CHAPTER CHAPTER OUTLINE NEW CHAPTER CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME Populations have many characteristics. SECTION OUTLINE SECTION OUTLINE carrying capacity population dynamics population density Populations go through three stages: growth stability decline Four characteristics define a population: size density spacing age structure Scientists can predict population changes. population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME population dynamics KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations have many characteristics. The study of the changes in the number of individuals in a population and the factors that affect those changes. carrying capacity population dynamics population density population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME The maximum size that a population can reach in an ecosystem. carrying capacity KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations have many characteristics. carrying capacity population dynamics population density population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME The number of individuals of the same species that live in a given area. population size KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations have many characteristics. carrying capacity population dynamics population density population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME A measure of the number of organisms that live in a given area. The population density of a city may be given as the number of people living in a square kilometer. population density KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations have many characteristics. carrying capacity population dynamics population density population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME immigration Populations respond to pressures. SECTION OUTLINE SECTION OUTLINE emigration Populations change as they respond to pressures from limiting factors. Two types of limiting factors are density dependent limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME immigration Populations respond to pressures. SECTION OUTLINE SECTION OUTLINE emigration Populations change as they respond to pressures from limiting factors. Two types of limiting factors are density dependent and density independent. limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME immigration Populations respond to pressures. SECTION OUTLINE SECTION OUTLINE emigration Populations change as they respond to pressures from limiting factors. Two types of limiting factors are density dependent and density independent. limiting factor opportunist competitor 3.2 VISUALIZATION Watch how a change in the environment can affect a population. CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME In population studies, the movement of an organism into a range inhabited by individuals of the same species. immigration KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME In population studies, the movement of individuals out of an ecosystem. emigration KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME A factor or condition that prevents the continuing growth of a population in an ecosystem. limiting factor KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME A species characterized by a relatively short life span, with relatively large quantities of offspring, as compared with a competitor species. opportunist KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME A species characterized by a relatively longer life span, with relatively few offspring, when compared with an opportunist species. competitor KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME Human populations have unique responses to change. SECTION OUTLINE SECTION OUTLINE pollution Humans can control many factors that limit most biological populations. Transporting WaterPurifying Water 3.3 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME The release of harmful substances into the air, water, or land. pollution KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Human populations have unique responses to change. pollution 3.3 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME I. Populations have many characteristics. A. Populations go through three stages. C. Scientists can predict population change. 3. Population Spacing 4. Age Structure KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations have many characteristics. 1. Growth, Stability, and Decline 2. Darwin’s Observations of Population Growth B. Four characteristics define a population. 1. Population Size 2. Population Density carrying capacity population dynamics population density population size 3.1 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Populations respond to pressures. II. Populations respond to pressures. A. Population growth is limited. B. Populations have distinct reproductive survival strategies. 1. Strategies of Opportunists 2. Strategies of Competitors 1. Birth, Death, Immigration, and Emigration 2. Limiting Factors 3. Effects of Population Density immigration emigration limiting factor opportunist competitor 3.2 CHAPTER RESOURCES CHAPTER RESOURCES

VOCABULARY KEY CONCEPT CHAPTER HOME III. Human populations have unique responses to change. A. Human populations differ from populations of other species. 1. Habitat Expansion 2. Technology B. Human populations are growing. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Human populations have unique responses to change. pollution 1. History of Human Population Growth 2. Population Projections C. Human population growth affects the environment. 1. Introduction of New Species 2. Pollution 3. Overfishing 3.3 CHAPTER RESOURCES CHAPTER RESOURCES

CHAPTER HOME Image Gallery Click on the icons to see a larger image or animation. VISUALIZATION Watch how a change in the environment can affect a population.

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY ClumpedUniform Random

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

BACK TO CHAPTER Click on the items below to access resources on Standardized Test Practice Practice state standardized tests Math Tutorial Review math concepts Resource Centers Get more information on select science topics Content Review Review key concepts and vocabulary Audio Readings Hear chapter audio readings CLASSZONE.COM Chapter Resources CHAPTER HOME Animations Link to all the McDougal Littell Science animations Review Game Play a fun interactive review game Image Gallery Click here to review chapter images and animations