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Population growth

Population Problems

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AP Biology Population Practice Problems dN/dt = rN = B-D dN/dt = rN(K-N/K) There is a population of tigers that has 100 individuals. In one month, there are 12 births and 22 deaths. Calculate the individual growth rate. A population of 500 mealworms exhibits logistic growth. If the carrying capacity is 450 mealworms and r = 0.1, what is the population growth rate? In other words, how many individuals are added/lost to the population in one generation? You collect the following information during a one-year period. There are at the start of the year 1,000 deer on the island; 120 deer die, 200 deer are born, 20 immigrate, and 10 emigrate. Calculate the growth rate.

Chapter 2 Study Guide

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AP Human Geography ? Mr. Cox Name_____________________________________________ Unit Two: Population 1. State three reasons the study of population is important: 1.a.__________________________________________________________________________________ 1.b.__________________________________________________________________________________ 1.c.__________________________________________________________________________________ 2. Define demography:_________________________________________________________________ _____________________________________________________________________________________ 3. List the regions (areas) where most people live (e.g. near the coast):__________________________ _____________________________________________________________________________________

Unit 2 Vocabulary List

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A Vocabulary List for AP Human Geography Unit II. Population?Basic Vocabulary and Concepts Population Age distribution Carrying capacity Cohort Demographic equation Demographic momentum Demographic regions Demographic Transition model Dependency ratio Diffusion of fertility control Disease diffusion Doubling time Ecumene Epidemiological Transition model Gendered space Infant mortality rate J-curve Maladaptation Malthus, Thomas Mortality Natality Neo-Malthusian Overpopulation Population densities Population distributions Population explosion Population projection Population pyramid Rate of natural increase S-curve Sex ratio Standard of living Sustainability Underpopulation Zero population growth Migration Activity space Chain migration

Population Biology

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Population Biology Population Dynamics Principles of Population Growth Exponential growth: as a population gets larger, it also grows at a faster rate (makes a J-shaped curve on a graph) A population cannot grow indefinitely; eventually, factors such as lack of food, disease, etc. will slow population growth (makes an S-shaped curve on a graph) Carrying capacity: the number of organisms of one species that an environment can support indefinitely When a population overshoots the carrying capacity, limiting factors may come into effect Reproduction Patterns Populations are always naturally fluctuating Life-history pattern: an organism?s reproductive pattern Rapid life-history patterns are common among organisms from changeable or unpredictable environments

AP Human Geography The Cultural Landscape Vocab Ch. 2

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Agricultural density: Agricultural revolution: Arithmetic density: Census: Crude birth rate: Crude birth rate: Demographic transition: Demography: Dependency ratio: Doubling time: Ecumene Epidemiologic transition Industrial revolution Infant mortality rate Life expectancy Medical revolution Natural increase rate Overpopulation Pandemic Physiological density Population pyramid Sex ratio Total fertility rate Zero population growth
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APHG CHAPTER 2

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Chapter 2 Population 1 Population: A Critical Issue A study of population is important in understanding a number of issues in human geography. So our first main issue is a study of population. The Key Issues your book mentions are: 1. Where is the world?s population distributed? 2. Where has the world?s population increased? 3. Why is population increasing at different rates in different countries? 4. Why might the world face an overpopulation problem? 2 Study of Population The study of population is critically important for three reasons: The world?s population increased at a faster rate during the second half of the twentieth century than ever before in history. Virtually all global population growth is concentrated in less developed countries.

Population Pyramid Examples

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Population Pyramids = graphic device that represents a population?s age and sex composition. Pyramid describes diagram?s shape for many countries in 1800?s when was created. A broad base of younger age groups and progressively narrowing to apex as older Populations were thinned by death. Now there are many different shapes. Quickly growing population of Kenya ? jas ,most people in lowest age cohorts Percentage in older age groups declines successively with markedly sloping sides. Typically female life expectancy is decreased in older cohorts of less developed countries ? 50 for Kenya ? proportion of females in older age groups is less than in Sweden or U.S.

Chapter 8 Vocabulary

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4) Define each of the following terms: Demographic transition- Hypothesis that countries, as they become industrialized, have declines in death rates followed by declines in birth rates Demography-the application of principles from population ecology to the study of statistical change in human populations Industrial stage-3rd stage of demographic transition. Birth rates fall b/c children lose their economic value, women have employment opportunities outside of the home and access to birth control. Population growth is reduced Life expectancy-the average # of years an individual in a particular age group is likely to continue to live Natural rate of population change-change due to birth and death rates alone, excluding migration

AP Human Geography FInal Exam Study Guide

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AP Human Geography Notes General Geography: US road map is not a thematic map Every meridian is the same length and has the same beginning and end According to environmental determinism, the physical environment causes social development Highest density: most in numbers Highest concentration: closest together Cloropleth map uses shading Five Themes of Geography: Location: Relative location Absolute location Place: Human Characteristics Physical Characteristics Human-Environmental Interaction: Humans adapt to the environment Humans modify the environment Humans depend on the environment Movement People Goods Ideas Regions Formal (uniform) Functional (nodal) Vernacular (perceptual) Culture:

AP Human Geography FInal Exam Study Guide

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AP Human Geography Notes General Geography: US road map is not a thematic map Every meridian is the same length and has the same beginning and end According to environmental determinism, the physical environment causes social development Highest density: most in numbers Highest concentration: closest together Cloropleth map uses shading Five Themes of Geography: Location: Relative location Absolute location Place: Human Characteristics Physical Characteristics Human-Environmental Interaction: Humans adapt to the environment Humans modify the environment Humans depend on the environment Movement People Goods Ideas Regions Formal (uniform) Functional (nodal) Vernacular (perceptual) Culture:

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