BEN # 126

Adolf Ceska aceska at CUE.BC.CA
Sat Feb 10 12:28:11 EST 1996

BBBBB    EEEEEE   NN   N             ISSN 1188-603X
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BBBBB    EEEEE    NN N N             BOTANICAL
BB   B   EE       NN  NN             ELECTRONIC
BBBBB    EEEEEE   NN   N             NEWS

No. 126                              February 10, 1996

aceska at        Victoria, B.C.
 Dr. A. Ceska, P.O.Box 8546, Victoria, B.C. Canada V8W 3S2

From: Ingolf Kuehn <Ingolf.Kuehn at>

Sampling  of  vegetation and environmental data on alpine tundra
of Trail Ridge,  Rocky  Mountain  National  Park,  Colorado  was
carried  out  in  July and August, 1995, to answer the following

 1. Are there correlations between plants (or plant communities)
    and selected  environmental  factors  (or  factor-complexes)
    such  as  altitude,  aspect,  inclination, temperature, soil
    moisture and/or rockiness of the surface that may lead to  a
    better   understanding   of  a  species  autecology  or  the
    community's synecology?
 2. Are there specific plant communities for  specific  environ-
    mental types of vegetation?
 3. Is  there  any pattern on species-diversity or species-area-
    relationship of specific plant-communities or  environmental
    types of vegetation?
 4. Comparing   Modified-Whittaker-Plot-Samples   on   landscape
    dimensions and Braun-Blanquet-Releves  on  community  scale,
    what  will  be  the  differences  between plant composition,
    plant diversity and community types?
 5. Where are the limits of each method and which is the  method
    of choice for which kind of question?

The investigations were (as far as possible) restricted to mesic
tundra  belonging  to  the  class Elyno-Seslerietea BR.-BL. 1948
sensu Komarkova (1979). Eight "environmental types"  (four  car-
dinal  directions, each at two elevations related to treeline at
the specific slope) were defined  and  four  replicate  sampling
locations  for  each  environmental  type were randomly selected
(thus 32 plots). At these locations vegetation sampling was done
with Modified-Whittaker-Plots (Stohlgren et al.  1995)  with  an
area  of  10m x 25m. These plots contain ten 0.25m x 1 m and two
2.5m x 1m subplots, arranged  systematically  inside  along  the
perimeter  of  the  plot,  and  one centre subplot (2.5m x 10m).
Percent cover of each species  was  recorded  at  the  0.25  sqm
subplots,  presence/absence  for all other plots (thus there are
only newly occurring species recorded for the big 250 sqm plot).
Within  or  very  close  to  the  randomly  selected   Modified-
Whittaker-Plots  2-4  subjectively selected Releves of 1 - 2 sqm
(cf. WILLARD 1979) were taken according to the rules  of  BRAUN-
BLANQUET (1964).

Furthermore,  Elk  feces  were counted on 16 Modified-Whittaker-
Plots (2 of each environmental type) in the center-plot  (2.5  x
10  m)  to get an impression of grazing utilization of different
plots. On 8 Plots, representing the  8  environmental  types,  a
HOBO  XT  Temperature  Logger  was  placed for a week in August,
logging  temperature  every  15  minutes.  This  data  will   be
referenced   to   the  temperature-data  sampled  for  long-term
ecological  research  program  on  Niwot  Ridge  (University  of
Colorado,  Institute  for  Arctic  and  Alpine  Research). Soil-
moisture was measured with  a  TRASE  SYSTEM  TDR  (Time-Delayed
Reflectometry)  6050XI.  There  were  10  measurements  in  each
Modified-Whittaker-Plot around the center-plot.

The data is now being evaluated, using Canonical-Correspondence-
Analysis (CANOCO, ter Braak 1987-1992). This  analysis  will  be
run  for  species  data  and  for  plot  data  in  order  to see
autecological and synecological correlations. The data  of  both
methods  will  be  proceeded  to  the  rules  of Braun-Blanquet-
Tablework (Braun-Blanquet  1964)  to  receive  vegetation  units
("plant   communities"),   supported   by   the  program  COENOS
(microcomputer version of Ceska &  Roemer  1971).  Species-area-
curves will be computed for each of the Modified-Whittaker-Plots
as well as for the average of vegetation types and environmental
types and the results will be compared.

I  am  very  thankful  to the following persons who supported my
work: Dr. Tom Stohlgren, National Biological  Service,  Colorado
State University, Ft. Collins, Colorado, and his team as well as
Richard  Bachand,  National  Biological  Service, Rocky Mountain
National Park, Estes Park, Colorado,  and  his  team,  who  gave
scientific support and equipment. Therese Johnson, National Park
Service,  Rocky  Mountain  National  Park, Estes Park, Colorado,
helped me with research permission and housing.

ter Braak, C. J. F. 1987-1992. CANOCO - a  FORTRAN  program  for
   Canonical  Community Ordination. Ithaca (New York): Microcom-
   puter Power, 95 p.
Braun-Blanquet, J. 1964. Pflanzensoziologie ed. 3. Berlin, Wien,
   New York: Springer.
Ceska, A. & H. Roemer 1971. A computer program  for  identifying
   species-releve  groups  in  vegetation studies. Vegetatio 23:
Komarkova, V. 1979. Alpine Vegetation of the Indian Peaks  Area,
   Front  Range,  Colorado  Rocky  Mountains. Flora et Vegetatio
   Mundi 7. Vaduz: Cramer, 591 p.
Stohlgren, T.J., M.B. Falkner & L.D. Schell. 1995.  A  Modified-
   Whittaker  nested  vegetation sampling method. Vegetatio 117:
Willard, B. 1979: Plant Sociology of Alpine Tundra, Trail Ridge,
   Rocky Mountain National  Park,  Colorado.  Quarterly  of  the
   Colorado School of Mines 74(4): 119 p.

From: Marilyn Walker <mwalker at>
       re-posted from ECOLOG-L <ECOLOG-L at UMDD.UMD.EDU>

A  new  mailing  list  has  been  established  for discussion of
vegetation science. It will also be  used  for  distribution  of
IAVS-NA  and  ESA  Vegetation Section newsletters. To subscribe,
send an email message to:

   listproc at

with the text:

   subscribe vegetation Your Name

This list is for discussion of issues in the field of vegetation
science. Examples of appropriate subject matter  would  be  jobs
for vegetation scientists, announcements of meetings, discussion
of techniques and approaches for sampling and analysis, requests
for  information,  etc.  It  is  sponsored by the North American
Section of the International Association for Vegetation Science.
Anyone who is a list subscriber may post to the list.  There  is
no  moderation, but posting of inappropriate material may result
in revocation of subscription.

If  you  have  any  questions,   please   ask   Marilyn   Walker
<mwalker at>


Pringle,  J.S.  1995. The history of the exploration of the vas-
   cular flora of Canada. Canadian Field-Naturalist 109  (No.3):

Dr. Pringle's excellent article describes the history of botani-
cal  collecting  in  Canada from Taddaeus Haenke in the West and
the Moravian missionaries in the East to  (almost)  the  present
time.  The  paper  also  lists  the  main collectors of vascular
plants (with some notable  omissions  in  the  British  Columbia
botany  -  e.g.,  C.F.  Newcombe)  and  the herbaria where their
collections are housed. Two other articles in the same issue  by
the  same  author describe the history of the botanical explora-
tions of Greenland and Saint-Pierre et Miquelon.


Canadian Biodiversity: a  Guide  to  Botanical  Specialists  and
   Literature  by  E.  Small,  J.  Cayouette, B. Brookes, and W.
   Wojtas. 1995. Agriculture and Agri-Food  Canada.  [Electronic
   publication on diskettes and on World Wide Web.]

This  bilingual  format  (English/French)  work  lists  over 300
living (and a few recently deceased)  Canadian  botanists,  par-
ticularly systematists, phytogeographers, ecologists, foresters,
agronomists,  and  germplasm  specialists, and provides complete
citation details  of  over  15,000  of  their  publications  and
reports   related   to   biodiversity  of  vascular  plants  and
bryophytes.  Most  of  the  information  was  furnished  by  the
biodiversity  specialists  themselves. Addresses, telephone num-
bers, fax and E-mail information are also provided. An  appendix
lists recent key publications on Canadian biodiversity. A second
appendix  fully  spells out journal titles, which are standardly
abbreviated in the text. At least half of the listings  are  not
retrievable  from  other  available bibliographic databases. For
example, based on the first 1500 citations (i.e. ca. 10% of  the
entire  database)  61.0%  of  the  citations  included  were not
present in AGRICOLA (for 1970-1995), one of the  best  available
biological databases for North American biodiversity.

Three   hundred  sets  of  the  diskettes  (3.5")  version  were
produced. This comes  with  Acrobat  Reader  ,  a  user-friendly
retrieval  software  system  that  facilitates rapid location of
individuals and words. The system is for computers with  Windows
.  About 5 MB of storage are needed. The entire text (over 1,000
pages), can be printed out.  Printed  copies  of  the  text  are
deposited  in  the  Ottawa library of Agriculture Canada, and in
other selected Canadian libraries.

This work is available on the following web page:

From: "Clayton J. Antieau" <antieau at>
       originally on pacific-biosnet at

As residents of the Pacific  Northwest,  we  have  inherited  an
abundance  of  damaged and disturbed natural places: streams and
rivers,  wetlands,  and  forests--areas  that   should   provide
wildlife  and fish habitat, desirable water quality, recreation,
and a sense of home. The ability to identify the  native  plants
that  grow  (or could grow) in those places is essential to res-
toration efforts in those habitats.

As part of its mandate to  address  such  needs,  and  with  the
assistance  of a $5,000 grant from the King County Surface Water
Management Division, the Washington Native Plant Society  under-
took  the  development  of  a  professionally produced videotape
describing the basic field identification  of  approximately  23
trees,  shrubs, and herbaceous perennials native to riparian and
wetland habitats in  lowland  western  Washington,  northwestern
Oregon, and southwestern British Columbia. All these species are
useful  in  restoration  projects in those habitats. It is hoped
this video effort will encourage more citizens of our region  to
become  involved  in the enjoyment and study of native Northwest
plants, and in the restoration and care  of  the  habitats  they

This  30-minute  VHS videotape is appropriate for older children
and adults with little or no botanical experience. The videotape
features western Washington habitats and  an  introduction  from
Dr.  Arthur R. Kruckeberg, Professor Emeritus of Botany, Univer-
sity of Washington. Loaner copies of the videotape are available
through the King County Surface  Water  Management  Division  in
Seattle  for  the  cost  of  mailing  (for details contact Polly
Freeman 206-296-8359), or through the  Washington  Native  Plant
Society  for the cost of mailing ($3.00, pre-paid, check payable
to Clayton Antieau, WNPS, 1108 Northwest 80th  Street,  Seattle,
WA   98117-4134),   or   call   Clayton  Antieau  (206-784-1138;
antieau at to make other arrangements.

Submissions, subscriptions, etc.:  aceska at
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