Questions for Lecture 19:  Population Ecology: Models of 
        Population Growth; Future of Biosphere

[This lecture ends our excursion into Ecology.  It is expected by many that by the year 2025, there will be 8.4 billion people on this Earth.]

•  By the end of your preparation on this topic, you should be able to:

    © 1. Define population and discuss the exponential and logistic growth models for it, both
               mathematically as well as graphically.
 
    © 2. Discuss the concept of the carrying capacity łK˛.

    © 3. Describe the density-dependent and density-independent control of population growth.

    © 4. Discuss the major conclusions reached on the concepts of population and its
               control.
 
               [Note:  Some of you may wish to evaluate the Pros and Cons of World policies and your
                beliefs that affect the Human population growth in our World.  However, these answers
                are strictly between you and your conscience.  Please read chapter 28.]

    © 5. Define the following concepts and terms.  abiotic and biotic factor; population

• Outline of presentation :
            For outline of presentation and for the legends of figures, see  the Handbook for the course "Biology 121 Notes,  Spring, 1998, University of Illinois, Plant Biology: Ecology and Organismic Plant Biology" by Govindjee, Stipes  Publishing, Champaign,IL.
 
    © Slides used in the class are to be found elsewhere on these Web pages.