In this lesson, our instructor Bryan Cardella gives an introduction on the dynamic human population. He discusses populations, the human population curves, key terms, human population growth, calculating population change, age structure, demographic transition, life expectancy and death, human population's effect on Earth, human carrying capacity, and zero population growth.
Key terms include: population, population dynamics, species, demography, abundance, birth rate, death rate, (including crude birth rate and crude death rate), growth rate, age structure, fertility, general fertility rate, total fertility rate, age-specific birth rate, cause-specific death rate, morbidity, incidence, prevalence, case fatality rate, rate of natural increase, doubling time, infant mortality rate, life expectancy, and GNP per capita
With the history of the human population, there are four main phases: hunter/gatherer, rise in agriculture, Industrial Revolution, and the Modern Era. The growth of our human population has recently been exponential
Doubling time for a human population can be calculated assuming exponential growth. Logistic growth involves an inflection point and the concept of carrying capacity
Age structure diagrams show the proportion of each age group in a population. The typical types include pyramid, column, bulging column, and inverted pyramid
The demographic transition is a three-stage pattern of chance that occurs in developed countries, and it inevitably results in a decline in population growth
Maximum lifetime and average life expectancy vary by country and they vary from year to year. Factors influencing these rates include acute disease, chronic disease, economics, and health care availability
The human population’s effect on Earth is a function of the number of people and each person’s individual impact on the Earth. The key is to improve our standard of living worldwide while slowing population growth. The human carrying capacity on Earth is not known, but there are plenty of theories about when we’ll reach it.
Zero-population growth may inevitably be achieved if women wait to have their 1st born child until later, women/men use birth control consistently and correctly, and expand national programs to incentivize and encourage having less children
The Dynamic Human Population
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Environmental Science concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
This book is an updated manual that offers a brand-new diagnostic test to pinpoint the test taker's strengths and weak areas, two full-length practice exams with all questions answered and explained, a detailed review of all test topics, supplemented with practice questions and quizzes with answers, an overview of the test plus helpful test-taking strategies, and hundreds of diagrams and illustrations .