REVIEW FOR CHAPTER 4 TEST

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					               REVIEW FOR CHAPTER 4 TEST
      THE HUMAN POPULATION AND THE ENVIRONMENT
_______________________________________________
Questions 1-2 refer to Figure TB4.1 below:

             Female                                                                 55 +
                                                                                    50-55
             Male                                                                   45-50
                                                                                    40-45
                                                                                    35-40
                                                                                    30-35
                                                                                    25-30
                                                                                    20-25
                                                                                    15-20
                                                                                    10-15
                                                                                    5-10
                                                                                     0-5

                    16    12      8        4      0      4       8     12      16
                                      Percent of the po pula tion

   1. The figure above illustrates what concept?

   2. Assume that the figure above illustrates the characteristics of a tribe on a small
      Pacific island. What are some plausible explanation for the shape of the graph?

   3. Why do people of Bangladesh occupy low-lying coastal areas of their country,
      areas that were susceptible to devastating monsoon flooding?

   4. Decreased death rate and the accelerated rate of human population growth are
      related to __________________.

   5. The “demographic transition” refers to ____________________________.

   6. In a developing country, chronic diseases account for a _________ proportion of
      total mortality. Acute diseases account for a _________ proportion of total
      mortality.

   7. Rapid human population growth puts an especially heavy burden on _________.

   8. In primitive countries, breast feeding slows population growth because _______.
9. Human demography suggests that an improving economy in a country correlates
   with ________________________.

10. The demographic transition occurs in three stages. Under which circumstance is a
    nation UNable to make the transition from stage II to stage III?

11. How rapidly a population changes depends most upon ____________________.

12. The crude growth rate is defined as ___________________________________.

13. The basic concepts of population growth and change are known as __________.

14. The simplest and one of the least controversial means of slowing population
    growth is ______________________.

15. Calculate the doubling time of the population in Kellertopia. The annual
    population growth in this fictional country is 5.0 %.

16. The growth rate of the human population has increased over the last few hundred
    years due to all of the following reasons except __________________________.

17. The current population of Demographica Island is 10 million inhabitants, and the
    population is doubling every 10 years. Current agriculture on Demographica
    could feed 20 million people, and technological improvement is expanding that
    capacity by 1 million every year. Given only this information, when will there be
    a food shortage on the island?

18. In June 2001, 17,800,000 people inhabited Demographica Island. During the time
    period from 2000 to 2001, 301,000 births were recorded. During the same period
    of time 120,000 deaths occurred. Calculate the growth rate (in %) for
    Demographica Island.

Question 21 refers to Fig. TB4.2 below:
                                           80
                   Number of Individuals




                                           60

                                           40


                                           20

                                            0
                                                0 - 10 - 20 - 30 - 40 - 50 - 60
                                                            Age
19. Examine the graph above illustrating the age distribution of people in a tribe in
   the Amazon basin. What might be the significance, from a demographic
   standpoint, of this distribution for the future of this population?

20. What is the term that describes individuals leaving a population?

21. A population has a growth rate of 2-percent per year? How long will it take for
    this population to double?

22. An age-structure pyramid is used to _________________________________

23. Which of the fallowing are exhibited by k-select organisms?
      I. Slow maturation
      II. Many small offspring
      III. Reproduction occurs late in life

24. A population cycle that is marked by regular increases and decreases in its
    numbers is correctly said to be_________________________________

25. The demographic transition model is used to study the ____________________

26. Give examples of density independent population factors?

27. When a population encounters environmental resistance it is most likely to
    _________________________

28. A population’s growth can best be calculated using what equation?
          CHAPTER 4 SHORT ANSWER QUESTIONS




   1.       The diagram above illustrates the three main types of survivorship curves.
            Describe the characteristics of a population that displays each of the types of
            survivorship curves and give and example of a population that would exhibit
            that particular type of survivorship curve.

Type I:




Type II:




Type III:


   2.       What is the difference between an r-strategist species and a k-strategist
            species? Describe the characteristics of each strategy and give one example of
            a species that exhibits each strategy.

				
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