[Prev][Next][Index]

Finally something from Don!



BOOK CHAPTER OUTLINES FOR II.2 AND III.4

----------------------------Original message----------------------------
Bob:

Attached below are draft outlines for two chapters: II.2. Barrier Island and
III.$. Succession.  I am waiting for Jay's input.  The delay is my fault not
his, he has only had a few days to look at the outline.  As soon as I
receive his comments and modify the outlines, I will send them along to you.
Hopefully, the drafts will give you an idea of our direction for these two
chapters.  Any comments, suggestions, criticisms, etc. are greatly appreciated.

Don




-------------------------------------------------------

Section II. Response of landscape to disturbance

II.2. Barrier Island (Young, Day, Zieman)

A.  Introduction (relate to discussions in previous chapters (e.g. I.2 and
I.4))
     1.  Landscape units are interrelated
     2.  Landscape units are dynamic
     3.  Disturbance accelerates landscape dynamics
     4.  Disturbance and state change Hayden et al BioScience paper
     5.  Disturbance forms (OR WILL THIS BE IN OPENING CHAPTER OF SECTION II?)
          a.  Spring tides
          b.  Northeaster storms
               i.  flooding
               ii.  overwash
               iii.  wind damage
          c.  Hurricanes
               i.  North Inlet - Hugo results ?
          d.  Others (fire, large herbivore grazing, thunderstorms)
B.  Upland
     1.  Introduction
          a.  importance of topographic position
               i.  swale vs dune
               ii.  distance from ocean beach
          b.  effect of vegetation type )grassland vs shrub thicket
     2.  Effects and responses (relate to disturbance forms (section A.5)
          a.  flooding patterns
          b.  changes in soil  and groundwater salinity
          c.  response of vegetation, especially to Oct '91 storm
          d.  overwash and plant distribution (Fahrig et al. Paper)
          e.  thicket gaps (Young, Crawford and Day work)
               i.  small vs large gaps/disturbance
               ii.  plant response and the effects of thicket age
C.  Marsh (Jay's input)
D.  Synthesis
     1.  Disturbances contribute to distinct vegetation patterns on barrier
islands.
     2.  Relate to Disturbance theory (e.g. Connell 1978)
     3.  Summarize relative to Hayden et al BioScience
     4.  Emphasize that these disturbance responses/processes affect
successional dynamics (i.e. autogenic changed to allogenic, Chapter
III.4)


-----------------------------------------------


Section III.  Cross-system responses

Chapter III.4. Succession (Young, Zieman)

A.  Introduction
     1.  Brief discussion of coastal successional literature
     2.  multiple pathways?  Ehrenfeld 1990 discussion
     3.  effects of state change on succession "pathways (Hayden et al. 1991)
     4.  underlying mechanisms poorly understood
     5.  Goal:  develop an integrated view of successional pathways and
underlying processes that incorporates disturbance/state-change and
extends from marsh to upland
B.  Chronosequence examples
     1.  Refer back to chapter I.4
     2.  Important developments in terrestrial system
          a.  grassland to shrub thicket
               i.  Young et al shrub seedling establishment results
               ii.  Day nutrient plots
               iii.  Facilitation vs competition conceptual model
          b.  shrub thicket to maritime forest
               i.  characterization of gap "community" relative to thicket
"community"
               ii.  thicket gap experiments (Young and Day)
               iii.  Gap succession acceleration conceptual model
C.  Descriptive study and modelling approach on Parramore (Richarson,
Porter,      Shao, Shugart)
D.  Marsh succession (HELP JAY!)
     1.  importance of elevation
     2.  state change conceptual model
     3.  lots of other interesting stuff
C.  Integrated across the VCR
     1.  Comparison of potential succession pathways on islands differing in
          a.  size
          b.  disturbance intensity
     2.  Island "rollover" as successional interaction between marsh and
upland surfaces
     3.  Revisit Hayden et al. 1991 and state change concept
D.  Conclusions
     1.  Traditional autogenic succession vs allogenic influences
     2.  VCR contributions to the Ehrenfeld (1990) discussion of succession
     3.  Stress importance of underlying mechanisms to understand pathways
     4.  Possible implications of sea level rise?



###########################################################
#                                                         #
#             Don Young, Ph.D.                            #
#             Associate Professor and Director,           #
#              Graduate Program in Biology                #
#                                                         #
#             Dept. of Biology                            #
#             Virginia Commonwealth University            #
#             Richmond, VA   23284                        #
#                                                         #
#             phone: (804) 828-1562                       #
#             fax: (804) 828-0503                         #
#             email: dyoung@saturn.vcu.edu                #
#                                                         #
###########################################################