ENTO 201 – EXAM 2 – November 3, 1999

 

NAME ______________________________________                                SS# ______________

 

ILLEGIBLE ANSWERS WILL NOT BE GRADED

Read directions and questions carefully.  Think before you respond.  GOOD LUCK.

HONESTY IS EXPECTED.

 

FILL-INS (5 pts. each question).  Fill in the blanks with the appropriate word or words to make the sentence or statement complete.  NOTE:  Some statements have more than one correct response.  Answer in the context of the course.

 

1.                  Of the 9 "types" of attitudes toward animals identified by Kellett which one did you most identify with? _________________________  Why? _____________________________  Which one would you be most opposite to? ______________________  Why? ________ ________________________________________________________________________

 

2.                  Individuals with different cultural/religious background value wildlife in different ways.  For dogs and rats give different viewpoints on value and the culture most likely to share the view.

         viewpoint                     culture

                        Dog                  1.  ______________               _________________

                                                2.  ______________               _________________

                        Rat                   1.  ______________               _________________

                                                2.  ______________               _________________

                                                3.  ______________               _________________

 

3.                  Human population growth passed ____________ billion Oct. 12, 1999.  It doubled from ½ that number in ___________ years.  If human growth is between 1 and 2 percent it will double again between ____________ and ______ years.

 

4.                  Stage 1 of the demographic transition has a (circle one) LOW, STEADY, HIGH growth rate.  Stage 2 of the demographic transition has a decrease in _____________ rate with ______________ rate much more slowly decreasing in developed countries where the theory was developed.  In developing countries, the theory for stage 2 does not hold because the rate of _________________ actually _____________________ due to __________________________________________.

5.         Environmental (or ecological) economics attempts to value conservation beyond __________________ of the resources.  A wildlife population might also have ________________ value such as, for example, ________________________________.

 

6.         In the Garrett Hardin Tragedy of the Commons (simplified) example, 20 farmers each owning 5 dairy cows cooperatively use a village commons and harvest an average of 10 kg of milk/cow.  Additional cows would degrade the pasture and reduce milk output by 0.1 kg/cow.  Would Mrs. O'Leary (one of 20 farmers) GAIN, STAY THE SAME, or LOSE (circle one) by adding a 6th cow (assuming the remaining 19 kept their 5 cows)?  What would Mr. Martin (another cow owner) lose by giving one of his cows to Mrs. O'Leary (so she would have 6 and he have 4)? ____________  If he (and all the other 19 owners) still kept their 5 cows and Mrs. O'Leary added 2 more cows (= 7) to her herd, what would she be obtaining in milk? ______________.  How much milk would Mr. Martin (still with 5 cows) be obtaining? _______________.

 

7.         What is represented at left side of diagram below? ______________________________

                                                                        What is at A? ____________________  What does

                                                                        this diagram say about population growth? _____

                                                                        _________________________________________

 

 

8.         What is at A in diagram?  ________________  What is at B? ______________________

                                                                        What does the diagram illustrate? ______________

                                                                        __________________________________________

                                                                        __________________________________________

 

 

9.         Draw the human population curve from 1900 to 1999.  Put an A at inflection point on

                                                                        curve.  What was rate of growth at point A?

                                                                        ______________________________________

 

 


11.       What type of growth curve does Malthus predict for the future human population? ____________________________________.  What environmental resistance factors might create this type of curve (min of 2) ________________ and _________________.  Can such a curve be seen in past history of human inhabitation on earth? ____________

            Explain. ________________________________________________________________

 

12.       Snow and Canada geese migrate to ____________ to breed during the ______________ and return to Delaware in the _____________.  Non-migratory Canada geese create wildlife/people conflict in situations such as _____________ and _______________.  What is the best resolution of this conflict? _________________________________

            Why? _______________________________________________________________

 

13.       Complete the mathematical expression for population growth dn/dt = __________.  In this formula identify each of the 3 components:  N = ___________________ , ___=_____________, ___=_______________ .

 

14.              In N. Atlantic fishery history (from VHS about Great Auk), technology changes in the 1960’s resulted in surviving fisher people moving from _______________ method of catching fish to boats that _________________________________________.  In this video what is “commons” ____________________________ and what could be done to reduce over exploitation? _________________________________________________.

 

15.       The authors of “Can Selfishness Save the Environment” say “exhortation, morals, reprimand, and appeals to human better nature” are __________________________ _________________________________________________________.  They say that past approaches have been either _________________ or ____________________ to conservation/saving wildlife (the “commons dilemma” solution) but a more reasonable environmental approach is evident in, for example, DuPont giving up manufacture of ozone harming _______________.  They label this a _________________ approach.


You will have 50 minutes – there are 20 total questions each worth 5 points.  If you lack time, answer completely – DO NOT SKIP – until you run out of time.  I will not grade unanswered questions beginning at #20 backwards.  Your grade will still be on basis of 100 pts. so questions will be worth more than 5 points each if you do not finish.

 

16.       Ecotourism is an example of ____________ value according to environmental economists whereas biological pest control/wildlife as a reservoir of new genetic stock is ___________________ value.  Why would ecotourism be economically helpful for land use planning in the Greater Yellowstone basin ______________________ or in the area of the Panama Canal in Central America ______________________?

 

17.       Complete the contrasts below for ethical viewpoints.

                           anthropocentric                                     biocentric

                        We dominant nature                              ________________________________

                        _________________________          Stable human population w/self-sacrifice

                        _________________________          Energy, water, soil are limited

                        Technology is the solution and

                        progress __________________          __________________________________

 

18.              In geological history, there have been two instances when 50% of species disappeared – name one ___________________.  When did dinosaurs go extinct? _______________.  Humanoids likely were responsible for loss of large animals/birds in an extinction event termed _______________________.

 

19.              How else might we define extinct other than totally gone?  Define 2 ways with examples.

1.      _____________________________________________________________________

2.      _____________________________________________________________________

Distinguish between endangered and threatened populations: ______________________ _______________________________________________________________________.

 

20.              Studying island biodiversity has enabled scientists to develop an _____________ model to show critical relationships of extinction rates.  Complete 2 graphs below of A - relationship of island size and number of species and B - number of species and extinction vulnerability.