What type of thematic map is this?

What is the title of this map?

What is the median age of PA? Name one state that is similar to PA and one state that is different

What can this map help us to determine?

Bellringer

BRReviewPopulation

Agenda

Partners2 columns- read chapter 4 pages 70-74

Your turn

The Human World

Population growth varies from country to country and is influenced by cultural ideas, migration, and

levels of development

Main Idea:

What is population?Collection of people living in a given

geographic areaDemography: study of populations through

statistics 1000-1800- slow increase in pop1800-1950- HUGE increase- pop doubledToday: 6.5 billion 2050:

The Numbers

Terms and Trends

Population Growth

Birthrate: number of births/year/1000Death rate: number of deaths/year/1000

Demographic Transition

Birth RatesCrude Birth Rate - Number of live births

per year per thousand people in the populations

Total Fertility Rate - Number of children a woman will have in her lifetime

Infant Mortality Rate - the number of infants who are born alive, but die before one year of age

List two countries with the highest birth ratesList 2 countries with the lowest birth ratesWhat could affect this?

Birth rate

Get out your homework (rest of the Population notes)

How is birthrate determined? What are 2 factors that affect birthrate?

Bellringer

BR- homework Discuss map testNext 5 countriesDeath rates, life expectancy, demographic

transition model

Agenda

Factors Affecting Birth Rates Government Policies Abortion Rates Age-Sex structure Female Education Economic Prosperity Infant Mortality Rate Typical age of marriage

What does this map portray?One high country; one low country.

Surprises? Trends?

Bellringer

BRPopulationCulture

Agenda

List the country with the highest fertility rateList 2 countries with the lowest fertility ratesWhat continent has the highest fertility rate?

The lowest?Why?

Fertility Rate

2 countries with the highest2 countries with the lowestTrends between fertility rate and infant

mortality rate?Why?

Infant Mortality Rate

Death rates- number of death per year/1000 people

Death Rates

Factors Affecting Death Rates Age Nutrition levels Standards of diet and

housing Access to clean

drinking water Hygiene levels Levels of infectious

diseases Levels of violent crime Conflicts Number of doctors

Availability and access to food

Better healthcareBetter living

conditions

Life Expectancy Average number of years a human has

before death

Continent with the highest life expectancy?Continent with the lowest life expectancy?

Life Expectancy

Life Expectancy

What are some problems with increased life expectancy?

Natural Increase Natural Increase - population growth

measured as the excess of live births over deaths.

How Countries Population Grow

Trends in the birth and death rates can be shown with the Demographic Transition Model

First used to show declining birth and death rates due to industrialization (in W. Europe)

DTM

Demographic Transition Model

Population Growth Doubling Time- The period of time

required for a quantity to double in size or value The lower the doubling time the faster the

population Current World Doubling Time- 51 years

Doubling time in developing countries: 25 years

Doubling time in developed countries: can be more than 300 years

2 countries with the highest doubling times (1 outside of Africa)

2 with the lowest

Population Doubling Times

Population Growth Population Explosion - The rapid growth

of the world’s human population during the past 100 years, including shorter doubling times and accelerating rates of increase.

Most industrialized and technologically developed countries have transitioned into stage 3 or 4

They went from having high birth and death rates to low birth and death rates

When birthrate and death rate are equal = zero population growth

Zero Population Growth

Need to meet demand for foodNeed to replenish resources (water, housing)Uneven distribution of population

(throughout the world and by age)

Problems with positive growth

When death rate exceeds birth rate2 countries: Hungary and GermanyWho is going to work?

Negative Population Growth and Problems

World population distribution is uneven and is influenced by migration and the Earth’s physical

geography

Population Distribution and Movement

Pattern of where people settle is unevenRelated to geography

Population Distribution

Where people live?Almost 90% of people live North of the

Equator

> ½ of people live on 5% of the land

Most people live close to sea level

2/3 of people live 300 miles or less from an ocean

30% of Earth is land but we can’t live on mountain peaks, deserts and tundra so people live on a small portion of the land (about 1/3)

People live where it is arable, where water is available and climate isn’t harsh and extreme

Where people live

What are ARABLE LANDS?

Which density measurement takes into account arable land?

Arable land percentage by country

.Source: CIA factbook

2 most arable countries2 least arable countries

Arable

What two continents are most populated?Where in these countries do most people live? Urban/metropolitan areasWhere are most of those located?

Trends

Population density- how crowded a country or region is (number of people/square mile)

Divide total population by total land areaDensities don’t always paint an accurate

pictureIt includes all the land in a country- even

unlivable land (deserts, mountains, etc)

Population Density

What are some trends in where people live?

US population density- 79.55/ mile

What does the Demographic Transition Model show? What stage is the US at? What are some characteristics?

Bellringer

Based upon what we discussed yesterday, identify 3 characteristics of where most of the world’s population lives.

Bellringer

BRHomeworkImmigration vs. EmigrationCultureEbola funReligion

Agenda

Population Movement

Types of MovementCirculation

Short term movement

Think of an example of circulation in your own lifeWhy do you do this?Why do you do it a certain way?

Types of MovementMigration

Permanent Movement

Have you ever moved somewhere permanently?If so why?Why there, why then, for how long?

What are some general reasons for people

moving?

EmigrationImmigrationWhen you leave a placeEx. Two years ago, I emigrated from Ireland. When you come to a placeTwo years ago, I immigrated to the United

States.

Why do people migrate?What does it mean to push someone?What does it mean to pull someone?

Push FactorsPush factors are forceful factors which

relates to the place from which the person is migrating

Something “Pushes” you from a place

What are some push factors that would make you want to leave York County after

graduation?

Push FactorsTypes of Push Factors

EconomicDealing with scarce resources such as moneyExamples: Loss of jobs, Increase in cost of living,

Unstable currency, lack of resources in the area

Cultural/PoliticalReligious intolerance, war, crime, education, lack

of social networks, forced migration, governmental change, draft

Push FactorsEnvironmental

Climate change, evacuation for storms, drought, blights, flooding, disease

Pull FactorsPull factors are what draws people to a new

location

Something “pulls” them to a place

What are some pull factors for York County? What encourages people to come here?

Pull FactorsTypes

EconomicJob opportunities, cheaper housing, markets for

businesses, lower cost of living, entrepreneurial opportunities, lower taxes

Pull FactorsCultural/Political

Religious freedom, family, friends, safety, good education, governmental stability, individual rights

Pull FactorsEnvironmental

Available resources, arable land, climate, safety

People who move longer distances move to cities Most rural to urban

What do cities have to offer? Jobs, culture, opportunities for education,

finding a spouse

Also think immigration to the United States Cities generally have a large immigrant

population Urbanization = growth of cities