by Cauleen Viscoff (previously published in the Peterborough Examiner)
Now that the weather is softening, and we are convinced that spring
really is around the corner, there are reasons to herald its arrival
other than with Easter eggs, birdsongs and flowers to pick.
There is a little-known group of folks around the world who are quietly
making a difference. They are monitoring birds, insects, frogs and
plants. Recording the blossom times of some plants are good indicators
of climate change. We all know that our climate
is making some subtle as well as some not-so-subtle changes - some
better and some not so much. So what does watching plants have to do
with climate change?
Plant-watching has a long tradition and a rich history throughout the
world. In 1750, the Swedish scientist and artist Linnaeus, turned
plant-watching into a systematic science. He made calendars of flowering
times for 18 places in Sweden, noting the exact
climatic conditions at the time of blooming.
This became the foundation of modern plant phenology (the science
dealing with the influence of climate on the recurrence of such annual
phenomena of animal and plant life as budding and bird migrations-
Dictionary.com). Phenology then spread to many European
countries and revealed, over the centuries, that some spring
wildflowers are super-sensitive weather instruments.
More than 100 years ago in Canada, Nova Scotia's superintendent of
education, Dr. Alexander H. MacKay, had students collect plant, animal,
agricultural and weather phenology from 1897 to 1923. And then, in 1987,
the Alberta Wildflower Survey started up and
blossomed (pun intended) into a program that initiated the Alberta
PlantWatch. This program then spread back to Nova Scotia, Newfoundland
and now today, PlantWatch is part of our national Nature Watch series of
volunteer monitoring programs designed to help
identify ecological changes that may be affecting our environment.
There are PlantWatch programs in each province and territory.
PlantWatch enables "citizen scientists" (volunteers gathering research
for scientists) to get involved by recording the flowering times for
certain selected plant species and reporting these dates to researchers
on the PlantWatch website. When the data is submitted
electronically, it is instantly added to web maps showing bloom dates
all across Canada ... So those observations make a difference right
away!
The collection of that much data across the vast expanse of our country
would be impossible for the small existing group of scientists presently
working in this field.
As Canadians, we are fortunate to live in a country with such a wide
variety of plant species. By participating in PlantWatch, we can learn
about our country's great botanical diversity and at the same time, help
scientists track the effects of global warming
and climate change in Canada.
The plants chosen for this program bloom every spring, largely in
response to rising temperatures. However, some species are flowering
almost a month earlier than they were a century ago!. Some of these
plants you are familiar with and grow in your own yards
and gardens. Poplar, Common Purple Lilac, Dandelion (bet you have lots
of those..), Red Maple and Trillium are just a few.
Scientists believe that climate change is affecting bloom times - a
trend that is continuing. They predict that the greatest increases in
temperature will be in Western and Northern Canada, while some parts of
Eastern Canada may actually be cooling (although
last summer was hotter than ever).
By reporting on the PlantWatch species found in our local communities,
we can help researchers discover how common plants are responding to
climate change, and track where those changes are taking place in Canada
and at what rate.
And now, for the first time in Canada, the PlantWatch program has
partnered with the Master Gardeners of Ontario. We are excited about our
potential contributions to science because we believe that observing
local plants can be fun, but more importantly, the
data we collect can serve a greater purpose by assisting scientists,
land managers and those responsible for our natural resources to help in
the environmental decisions they will need to make both now and in the
future.
We urge you to join us in making a difference. You don't have to be a professional, or even a gardener.
Take a look at the website; the plants are described in detail with
glorious photos. Gather up your your children, grandchildren, friends
and neighbours - sign up, get outside and watch spring happen - make
your observations and"¦.make a difference.
Peterborough gardener Cauleen Viscoff, PlantWatch co-ordinator, Master Gardeners of Ontario Inc., can be reached at plantwatchontario@gmail.com. For more information, visit
www.naturewatch.ca