| 1. The definition of a watershed used in
this module does not include connections to ground water.
|
2. Climate heavily influences streamflow
magnitude and timing.
|
| 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.
|
4. Soil is the most important non-living resource of
the watershed.
|
| 5. Watersheds that are seldom disturbed are likely
to have more species diversity than watersheds that undergo moderate
disturbance.
|
6. A watershed is one of many types of ecosystems.
|
| 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.
|
8. A population of organisms at level "K" has the
maximum number of individuals the current environment can support.
|
| 9. There are over one million large dams
impounding lakes in the US in addition to all the smaller dams in this
country.
|
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.
|
| 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.
|
12. A corridor is a uniquely important type of
landscape patch that links other patches to one another.
|
| 13. It is a worthwhile aim of a
watershed management strategy to maintain mosaic stability among the
ecological components of a watershed.
|
14. Riparian succession is different from most forms
of plant succession in the greater magnitude and frequency of
disturbances.
|
| 15. _______________ provide the physical
template upon which all life is ultimately based.
|
16. A ____________________ is an aggregate of
populations of different plant and animal species occurring within a
given area.
|
| 17. Species with especially far-reaching
effects on an ecosystem are called:
|
18. The Index of Biotic Integrity produces a score
by ranking ______________ in streams, to serve as a method for assessing
stream condition:
|
| 19. Watershed managers should always
think of structure not just as what is there now, but in terms of:
|
20. Elements like carbon, nitrogen, and
______________ comprise the watershed's most important biogeochemical
cycles.
|