Homework Page 393 summarizing the concepts sections 1 – 3 Lesson 36 Honors Biology

Character Education The human population is growing very fast, we will need to keep up and help others, more now than ever before Lesson 36 Honors Biology

Objectives Define a population Describe population dispersal patterns List some limiting factors in population growth Draw out a human population growth curve Define the 4 regions of typical population growth curves in nature Lesson 36 Honors Biology

Class Notes The human population has grown because of better sanitation, improved health, and agricultural ability to produce food When birth rate (BR) and death rate (DR) are equal the population is stable, horizontal line When BR > DR the population grows, the line goes up When DR > BR the population shrinks, the line goes down Human population growth is most rapid in developing countries, slowest in developed countries Lesson 36 Honors Biology

Notes Exponential Growth Curve – rate of growth stays the same and as a result the population increases

Notes Logistic Model – exponential growth is limited by a density dependent factor

Class Notes - 37 Population distributions include: – Random : not evenly spaced – Uniform : evenly spaced – Clumped : clustered in space Currently the world population is over 6 billion In 1776 the world population was 1 billion

Project Item / Project Item # 55 Density dependent / Independent factors Films: 25.3 / 47.4 Populations Bill Nye Easter Island why no people there 30 min like ‘Apoclyptico’movie about Myan civilization pt1 / pt2 plagues/famines 748 / Human Populations different countries histograms NOVA 60 min Lesson 36 Honors Biology