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Self Test for Watershed Ecology Module

Click on the appropriate response to each question below. After you've completed the quiz, you can calculate your score and compare your answers to the correct answers by clicking on the calculate score button that follows the quiz.

1. The definition of a watershed used in this module does not include connections to ground water.
  A. True
  B. False
  		2. Climate heavily influences streamflow magnitude and timing.
  A. True
  B. False
 
3. There is substantially more water stored in the atmosphere plus ground water than there is in all the bodies of surface fresh water in the world.
  A. True
  B. False
 

4. Soil is the most important non-living resource of the watershed.

  A. True
  B. False
 

5. Watersheds that are seldom disturbed are likely to have more species diversity than watersheds that undergo moderate disturbance.

  A. True
  B. False
 

6. A watershed is one of many types of ecosystems.

  A. True
  B. False
 

7. The River Continuum Concept describes a continuum of physical conditions typically found along rivers and streams and a subsequent response in their expected biota.

  A. True
  B. False
 

8. A population of organisms at level "K" has the maximum number of individuals the current environment can support.

  A. True
  B. False
 

9. There are over one million large dams impounding lakes in the US in addition to all the smaller dams in this country.

  A. True
  B. False

10. Watershed indicator species, or "canaries in a coal mine," include several types of mammals and birds that are labeled "intolerant" of poor water quality.

  A. True
  B. False
11. A functional difference between lakes and streams is that most of a lake's energy is usually fixed out in the watershed, not in the water body.
  A. True
  B. False
12. A corridor is a uniquely important type of landscape patch that links other patches to one another.
  A. True
  B. False
13. It is a worthwhile aim of a watershed management strategy to maintain mosaic stability among the ecological components of a watershed.
  A. True
  B. False
14. Riparian succession is different from most forms of plant succession in the greater magnitude and frequency of disturbances.
  A. True
  B. False
15. _______________ provide the physical template upon which all life is ultimately based.
  A. Soil and water
  B. Climate, hydrology, and geomorphology
  C. Structure and function
  D. Climate, geology and ontology
16. A ____________________ is an aggregate of populations of different plant and animal species occurring within a given area.
  A. ecosystem
  B. biosphere
  C. subwatershed
  D. aquifer
  E. community
  F. niche
17. Species with especially far-reaching effects on an ecosystem are called:
  A. dominant species
  B. aggressive drivers
  C. keystone cops
  D. keystone species
  E. indicator species
18. The Index of Biotic Integrity produces a score by ranking ______________ in streams, to serve as a method for assessing stream condition:
  A. relative abundance and diversity of stream invertebrates
  B. relative abundance of stream invertebrates
  C. diversity of fishes
  D. relative abundance of fishes
  E. relative abundance and diversity of fishes, invertebrates and aquatic plants
  F. none of the above

19. Watershed managers should always think of structure not just as what is there now, but in terms of:

  A. change rates of occurrence
  B. halting structural change
  C. structural changes in progress
  D. A and B
  E. A and C
  F. B and C
 

20. Elements like carbon, nitrogen, and ______________ comprise the watershed's most important biogeochemical cycles.

  A. potassium
  B. hydrogen
  C. phosphorus
  D. copper
  E. none of the above
 

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