BEN # 144
aceska at CUE.BC.CA
Tue Sep 17 09:45:56 EST 1996
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No. 144 September 17, 1996
aceska at freenet.victoria.bc.ca Victoria, B.C.
Dr. A. Ceska, P.O.Box 8546, Victoria, B.C. Canada V8W 3S2
NPSBC - NATIVE PLANT SOCIETY OF BRITISH COLUMBIA
This new society was instigated to bring together a diversity of
people who enjoy, study and work with indigenous plants. The
mission of the NPSBC Native Plant Society of British Columbia
to encourage knowledge, responsible use and conservation
of British Columbia's native plants and habitats.
This will be achieved through the following objectives:
1. Advance knowledge and awareness of the value of native
2. Develop and maintain an inventory of BC's native species,
communities and habitats.
3. Promote the conservation of BC's native plant species,
communities and habitats.
4. Initiate the development of guidelines concerning the ethi-
cal uses of native plants.
5. Support the use of native plants in accordance with the
ethical use guidelines.
6. Encourage the restoration of disturbed habitats of native
plant species and communities.
7. Facilitate communications and interaction among individuals,
groups and governments regarding native plant issues.
8. Support research on native plants and plant communities.
Membership fees: Individual - $20.00, Associate - $15.00, Cor-
porate - $75.00.
First membership meeting of the NPSBC - Native Plant Society of
British Columbia: Saturday, November 23, 1996, from 9:30 a.m. to
5:00 p.m., at the Grand Hall, University College of the Cariboo,
Kamloops. Registration fee for the conference (includes buffet
lunch and 2 coffee breaks) is $25.00 (deadline: November 8).
For more information contact:
Diane Gertzen, 14275 96th Avenue, Surrey, BC, V3V 7Z2
Phone: 604-930-3309 E-mail: DLGERTZE at mfor01.for.gov.bc.ca
WHAT ARE THE ANTIQUE FORESTS ? (RE: BOTANY BC FIELD TRIP)
From: Trevor Goward, Nature Canada - Summer 1994.
As a rule, lichen colonization in a maturing forest occurs in
two pulses. The first consists of various species of widespread
distribution, and is essentially complete by the time the forest
reached the century mark. The second, more diffuse pulse doesn't
really begin to register until 50 to 100 years later. It is
comprised of species living at or near the ecological limits of
their range; many will remain rare even once they do become
These phenomena are by no means peculiar to the conifer forests
of western North America. Similar patterns have already been
amply documented in Britain by lichenologist Francis Rose
In mid-'70s, Rose conducted inventories of the lichens of 102
oak and beech woodlands in different parts of the British Isles.
When later he compared his species lists against existing land
use records, he found a definite positive correlation between
lichen diversity and forest age. This led him to conclude that
some lichens may be regarded as "historical indicators of lack
of environmental change, within certain critical limits, over
long periods of time."
British forests undisturbed for many hundreds of years typically
support between 120 and 150 lichen species per square kilometre.
The richest forest for lichens by far is the New Forest which
ironically, is anything but new, having apparently escaped
woodcutter's axe since at least the Middle Ages. It was found to
contain an astonishing 259 species of lichens. By contrast,
British woodlans dating from less than 200 years ago tend to
support fewer than 50 lichens per square kilometre.
In the British Isles, as in British Columbia, a 150-year-old
forest will not acquire its full complement of epiphytic lichens
for at least another century or two. The fact obliges us to
think again about what we mean when we speak of "old growth."
Should an old-growth woodland 1000 years old be lumped, for the
purposes of conservation, with one that is "only" 200 years old?
Both forests may appear identical to the untrained eye. But they
clearly are not identical - whether as living archives of
British Columbia's past, or as repositories of biological tradi-
"Antique forests," as I define them, are simply the oldest of
the old: forests that have been around long enough to accumu-
late, among other things, a rich assemblage of old-growth
epiphytes. Such forests seem invariably to be more than 300 to
350 years old, and many, in many cases, have been in existence
much longer than the most ancient trees within them. The last
point is important. A 150-year-old tree in a 500-year-old forest
may well support more old-growth indicators than a 250-year-old
tree in a forest dating from a fire of equivalent vintage.
Goward, T. 1994. Living antiquities. Nature Canada, Summer 1994:
Goward, T. 1994. Notes on oldgrowth-dependent epiphytic macro-
lichens in inland British Columbia, Canada. Acta Botanica
Fennica 150: 31-38.
Rose, F. 1976. Lichenological indicators of age and environmen-
tal continuity in woodlands. Pp. 279-307 in: Brown, D.H. et
al. [eds.] Lichenology: progress and problems. Academic
SOUTHEAST ALASKA'S ROCKY SHORES: SEAWEEDS & LICHENS
Rita M. O'Clair, R. M., S. C. Lindstrom, & I. R. Brodo. 1996.
Southeast Alaska's rocky shores: seaweeds & lichens.
Plant Press, Auke Bay, Alaska. 152 p.
This guide to the abundant and diverse organisms living between
tidelines on the rocky shores of Southeast Alaska is useful from
the Aleutian Islands, Alaska, to Oregon because the complete
ranges of all species are given.
The book provides detailed descriptions of 83 species of algae,
30 species of lichens, 1 moss and 2 seagrasses. A chapter is
devoted to favorite seaweed recipes.
Each species description includes the common names, current and
former scientific names, geographic distribution and bathymetry,
as well as comprehensive anatomical, physiological and ecologi-
cal information. Almost every species is illustrated by an
exquisite grayscale b&w drawing. A complete species list, bibli-
ography and index are included, while a glossary is integrated
with the text.
Together, these three biologists, whose careers span a total of
80 years, have written a treasure for all who love west coast
rocky shorelines, including:
--students and teachers of marine biology
--subsistence users of intertidal resources
--managers of aquaculture projects
--scientists concerned with shoreline protection
--tour guides and visitors
--beachcombers, boaters, SCUBA divers
--birdwatchers, naturalists, and
--anyone who walks on rocky beaches!
To order a copy of this book, please send $22.95 in US funds for
orders with the US (residents of the City and Borough of Juneau,
Alaska, add $.80 sales tax), or $25 in US funds for orders from
Canada or Mexico. For other foreign orders, please enquire. Send
funds together with your complete name and address (including
zip code or postal code) directly to the publisher:
PO Box 210094,
Auke Bay, AK 99821-0094
Submissions, subscriptions, etc.: aceska at freenet.victoria.bc.ca
BEN is archived on gopher freenet.victoria.bc.ca. The URL is:
Also archived at http://www.ou.edu/cas/botany-micro/ben/
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