(no subject)

Jan 11, 2005 20:34

look how well im doing!!!
Population Demographics

CBR-Crude Birth Rate, Number out of 1000

CDR-Crude Death Rate, Number out of 1000

NRI- Natural Rate of Increase, CBR -CDR as a %

Difference between fertility and mortality

Stage 1 - CDR = CBR, both high, no current countries

Stage 2 - CBR= high, CDR, decreasing, Zambia, Congo, most of Africa

Stage 3 - CBR= decreasing CDR= low, India, Peru, lots of South America, Mexico

Stage 4 - CDR=CBR, both low, United States, Finland, Sweden

Stage 5 - Not yet an official stage, CBR is less than CDR, Germany,

Lifespan- Number of years a person lives, generally increases, higher in developed countries-about 70 and about 50 in developing countries

Highest in Japan

Simon-No limit to human growth

Ehrlich-There’s no room for all these people

Be nice to the world because otherwise you will lower the carrying capacity

Pronatal-Encourages births,

Germany’s baby bonuses and paid maternity leaves

Antinatal-discourages births,

China’s one child policy,

Economic benefits for families with fewer children,

Discounted medical care

Better Housing or limiting size of houses

Extra food

Access to, education about and willingness to use free contraception

Population pyramids

Cohort-One bar on a population pyramid

Sex ratio-males to females

Age dependency ratio-Ratio of people who have to be supported to people who generate income and care for them

Demographic momentum-what direction is the country going in

TFR-Total fertility rate, average children per women, 3.3 world wide

Growth=Birth-Death over total population

To make the J curve an s curve, lower births

Factors affecting fertility

Culture--Some encourage large families

Infant morality--if more children die, parents have more children to reach the number they want

Education-- more leads to fewer children

Status of women-- women don’t get to choose and if they did there would be fewer children

Reproductive technologies

-Surrogate Mothers

-Fertility Drugs

-Artificial insemination

-Sperm banks

-Menopause prevention

-Sperm from dead people

Birth control--needs access, knowledge and willingness

Religion--UN Conference on population development, pope and Muslim leaders doesn’t want birth control or abortion mentioned, tried to ruin the conference
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