Lesson points
|
- What key abiotic factors control
biotic processes in lakes? What is the state
of these in winter - see next questions.
- What is the typical seasonal cycle
in the vertical structure of these factors for
seasonally-cold, mid- and high latitude lakes?
- What are the mechanics behind
these seasonal changes? --
- For example, how does the
density of liquid water vary with
temperature? And how does this play a role
in the changing vertical structure of lakes from
Fall to Winter to Spring?
- Are winter frozen-over lakes in
the Colorado Rockies biologically active?
- If so, what processes are
occurring under the ice? And with what
vertical structure?
- What is the general composition of
wintertime biotic communities in such a lake and
its sediments?
- Is there evidence of biotic
seasonal succession in wintertime observations?
|
Mid-winter
active stream, MRS. Winter Ecology 2005 (photo: Alan
Rosacker) |
Winter Ecology
Schedules and Readings 
