PPT-Population Growth Factors When Studying Populations

Size 2 Density 3 Growth rate 4 Survivorship 5 Age structure Each population has a density a dispersion and a reproductive strategy Populations Population density is a measurement of the number of individuals living in a defined space. April. . 18th/2012. Adapted. . from. : . Taylor, S. (. 2010). . . Populations (Presentation. ). . Science Video Resources. . [Online] . Wordpress. . Retrieved from . http://. i-biology.net/ibdpbio/populations/. 8. . POPULATION ECOLOGY. THE WOLF WATCHERS. Endangered gray wolves return to the American West. . THE . WOLF WATCHERS. . . Endangered . gray wolves return to the American West. April. . 18th/2012. Adapted. . from. : . Taylor, S. (. 2010). . . Populations (Presentation. ). . Science Video Resources. . [Online] . Wordpress. . Retrieved from . http://. i-biology.net/ibdpbio/populations/. Chapter 42. Chapter 42 Populations. Key Concepts. 42.1 Populations Are Patchy in Space and Dynamic over Time. 42.2 Births Increase and Deaths Decrease Population Size. 42.3 Life Histories Determine Population Growth . Factors Affecting Population Growth. Populations grow and shrink in response to abiotic and biotic factors.. Abiotic. – physical & chemical factors such as water & light availability, soil structure, salinity, pH, etc.. Bell Work. Students will address how populations are distributed.. Students will describe how populations are sustained over time.. Today’s Objectives. Describing Populations. Geographic range- . the area inhabited by a population. April. . 18th/2012. Adapted. . from. : . Taylor, S. (. 2010). . . Populations (Presentation. ). . Science Video Resources. . [Online] . Wordpress. . Retrieved from . http://. i-biology.net/ibdpbio/populations/. 5-1: How Populations Grow. What is a population?. . Group of individuals of the same species in a given area.. 5-1: How Populations Grow. Characteristics of Populations:. Geographic Distribution (Range). Describing Population. Geographic Range. : area inhabited. Density and Distribution. : . Population Density - # of individuals per unit area. Distribution – individual spacing in a population (random, uniformly, clumping. A . population. . is a group of organisms of the . same. species that live in a specific geographical area and . interbreed. .. A population is a . reproductive. group because organisms usually breed with members of . Factors. Remember, primary productivity of an ecosystem can be reduced by limiting nutrients. Limiting . factors can . determine carry capacity. Density Dependent Factors. Density Independent Factors. Population - Consists . of . all. the individuals of a species that live together in one place at one . time. Examples. : all the alligators living in the Everglades . this. . year. Demography - . Study of human population . . Core. Define population as a group of organisms of one species, living in the same area at the same time.. State the factors affecting the rate of population growth for a population of an organism (limited to food supply, predation and disease), and describe their importance .Identify the lag, exponential (log), stationary and death phases in the sigmoid population growth curve for a population growing in an environment with limited resources. (write answer in complete sentences!). Chapter . 8 in . Blue Oxford book– Read . pgs. . 160-183. Answer: Test . yourself #1-10 . pg. . 164. Green Pearson . bk. : Read . chpt. 2.6, 3.1. Answer: .