Larry Cornelis has extraordinary knowledge of the flora and fauna of Lambton County and beyond. He expertly led a group of nearly 90 people through Lorne C. Henderson Conservation Area looking at various tree species, explaining what to look for when identifying trees, and engaging us with many facts about the importance of trees.
A fairly recent popular term that Larry described is Forest Bathing – simply immersing oneself in a forest atmosphere. With as little as 2 hours per week Forest Bathing has been scientifically shown to increase immunity, decrease the risk of cancer and help you to recover from illness faster, decreased risk of heart attack, help with obesity and diabetes, more energy and better sleep, mood- boosting effects, and decreased inflammation.
This two hour walk was enjoyed by all and everyone left understanding the significant role native trees play in providing habitat and food for the incredible biodiversity needed for a healthy ecosystem.
Thank you Larry!
Larry also provided a comprehensive list of books that he recommends for tree identification:
Trees of the Carolinian Forest; Gerry Waldron
The Sibley Guide to Trees; David Allen Sibley
Landscaping With Native Trees; Guy Sternberg & Jim Wilson
The Global Forest; Diana Beresford-Kroeger
Arboretum America; Diana Beresford-Kroeger
Forest Bathing; Dr Qing Li
The Hidden Life of Trees; Peter Wohllenben
Trees in Canada; John Laird Farrar
This monthly presentation begins with a social gathering starting at 7pm. Come and get to know other Lambton Wildlife members and enjoy some refreshments.
Our speaker tonight is one of our own, Justin Nicol. Justin is a board member of Lambton Wildlife, the owner of Nature’s Way Nurseries and a local horticulturalist who loves trees.
During this presentation you will have the opportunity to learn about our cities’ and towns’ hardest working entities, trees, yes that right! This presentation will cover the benefits that trees in towns and cities have, as well as the challenges they face day to day. We will also address how we can help them thrive through recognizing some basic visual signs, and go over what trees can benefit from – from the time of planting, to a mature beautiful specimen tree in our urban areas. Hope to see you there!!
There are eleven species of trees in Mandaumin Woods, including the Shagbark Hickory (Carya ovata). The Shagbark Hickory is interesting because of its shaggy appearance, which also makes it an easy tree to identify. It is native to Canada and is extremely hard and dense making it very useful in making tool handles and furniture.
A Wallaceburg company, Hillerich and Bradsby, once used Shagbark Hickory trees (among other kinds of wood) in the manufacture of baseball bats and other sporting equipment. H&B were most famous for producing the Louisville Slugger Baseball bat. (more…)
Autumn is an ephemeral time of blasting colour where the asters spark up, leaves are set a blaze,
pumpkins perch as glowing beacons, and avian migrants give birders their seasonal eye check-up and
If not for the sake of easing the neck pain from looking up, trick-or- treat your eyes to a fungal foray in
the forest and you’ll be surprised at all the different colours, shapes, and forms mushrooms come in.
As triumphant green chlorophyll, the star of photosynthesis, exits the solar stage to unveil the
carotenoids and xanthophylls that give off yellow, orange, and brown hues. In some plants and trees,
anthocyanins are produced from sugars and give off brilliant red and purples. On the other branch,
evergreens have a needle with a smaller surface area and a waxy coating to withstand winter and some
manufacture antifreeze proteins to protect their leaves and roots through the winter. The palette
combinations of greens, yellows, oranges, reds, purples, and browns pleasantly teases us towards the
cooler seasons and before we know it the leaves will have dropped with the temperature.
Temperature can affect red intensity. The combination of warm days and cool nights causes sugars to
become trapped in the leaves, intensifying reds. Colour can depend on the species of trees and even
indicate sex in the case of red maples. Males give off deep reds and purples while females turn shades of
yellow and orange. Orchestrated by the seasons, fall colour is the result of autumnal equinox when the
days start to get shorter.
For the tree, undergoing this process is not simply a matter of subtracting greens and adding reds but
rather a tricky response to changing seasons. Anthocyanins responsible for red maple rouge are
suspected to function as a sun-screen, an antioxidant against insect and fungal attack, or a strengthener
for leaves and stems allowing them to swallow a few more precious beams sunlight. Hormones trigger
the leaves to drop so they don’t use up the water they need to keep their roots alive over the winter.
The final sugar harvest, the recycling of resources, and the conservation of water and nutrients is an
important time for deciduous plants and trees if they’re to survive the winter. It is to our joy the shift
from the growing season to dormancy in nature is so beautifully marked across the landscape. Where is
your favourite place to go to experience fall colour?
While the colour palette of plants is played above, fungal networks beam below. Spending most of their
lives beneath the surface, fungi are an often over looked group. However, they come in a mind-blowing
array of colours, shapes, and forms with equally as intriguing natural histories. Matching the artistry
above you can find fungi with shades of blue, purple, green, red, orange, yellow, or brown as well. Many
fungi are important soil builders,breaking down organic matter and mining minerals into useable forms,
some form mutualistic partnerships with tree and plant roots providing a host of benefits to individuals
and to forests, and some are parasites that infect (mostly weakened) living trees. Not to mention, they
have had a cultural impact on human society for thousands of years due to their edible and medicinal
The things we know as mushrooms that peculiarly poke from below the soil or perch from tree limbs are
called fruiting bodies, analogous to the apple fruit, of a larger but hidden fungal network called
mycelium. The fruiting bodies produce spores, analogous to the seed, which have the potential to start
genetically new individuals. Although they’re lumped in with plants at the grocery store and in our
minds, fungi are more closely related to animals. The more we uncover about this little known group,
the more interesting and important they become.
For example, tree-partnering fungi have been shown to receive between 20-80% of the sugars that
leaves produce and, like a bank, they can store the sugars and repay them during difficult times. Fungal
networks also broker nutrients between different tree species and transfer nutrients from dying trees to
healthy young trees. Absorbing water and minerals, the things roots are supposed to be good at, are not
as good at it as we thought. Fungal mycelium is much more absorptive and covers a much greater
surface area under ground. It has been suggested that 1 square cm of soil can contain over 5km of
mycelium. To acquire nutrients fungi mine pockets of minerals in the soils, hunt and snare soil
invertebrates, break down dead animals and plants including hard to digest molecules lignin and
cellulose, or living off hosts as parasites. These nutrients get returned to the forest one way or another
in a more useable form. Mycelium not only acts like nutrient highways, shuttling nutrients through the
forest, but also as a communication system capable of warning others of an attack. In response to an
insect attack an alert sent through the network can warn neighbouring trees to get a head start in
ramping up toxic chemicals in their leaves or needles as a defense against impending attack.
Although all of these happenings cannot easily be seen, fall is evidently an active time of year above and
below the surface and a particularly excellent time to view fungi. You can see a diversity of conspicuous
fungi that decorate our different natural areas like Canatara, Lambton County Heritage Forest,
Mandaumin Woods, Karner Blue Sanctuary, and the Pinery.
Fall weather might have its ups and downs but it can easily be forgiven with sights of glorious fall colours
above or bizarre fungi below that put a show for all the action that goes on behind the scenes.
Have any fall or fungi photos? Why not submit them to the Lambton Wildlife Inc. Photo Contest? It’s
free, gives you the chance to win great prizes, and the potential to have your photo featured in Lambton
For photo contest information check out:
Interested in the progress of colours? Check out:
Want to ID leaves by their fall colour? Check out:
On a beautiful, sunny Sunday, Justin Nicol led 28 Lambton Wildlife members and guests on an educational stroll through a section of the Rock Glen Conservation Area.
Rock Glen is located in Arkona, Ontario. It is usually known for its natural collection of Brachiopod, Coral and Crinoid stem fossils. This day, however, we were treated to an opportunity to appreciate the area for its collection of Carolinian and Great Lake native trees.
Rock Glen is in a transitional zone of Carolinian, to the south, and Great Lake zone to the north, this results in trees native to both areas growing at this site.
Justin talked about the Kentucky coffeetree, which is a Carolinian tree. It has a very large leaf that is often mistaken for a collection of leaves. The stem is actually just one leaf and each of what appears to be leaves, are actually called leaflets. This tree is one of the last to leaf out in the spring and it looses its leaves early in the fall. Sometimes, because the tree is so late to get leaves in the spring, we may think that the tree has not survived the winter. It produces male and female flowers, usually on separate trees. The seed pod is a dark leathery reddish – brown. The seeds need to be scored before planting to improve germination. Trees, at maturity, are 15-25 meters tall.
The hemlock was another tree species seen.
The hemlock is a type of pine tree and can grow up to 30 meters in height. It likes cool, moist, shady and protected sites.
We saw trembling aspens, Chinquapin aka chinkapin oak and hackberry trees, to name just a few. We even saw some fossils!
Justin spoke to us about the importance of our native trees, to the nature balance and preventing the spread of invasive species. He also said it is not always easy to tell, without a little help, which trees may be invasive. An example he demonstrated was the Norway maple and sugar maple. The Norway maple is widespread. It grows well in urban areas, sometimes too well. The sugar maple would be a much better choice for planting. The sugar maple is better for wildlife and has beautiful fall colours, while the Norway maple is a prolific seeder and has dense foliage that can choke out competing trees and plants. When unsure about identifying the two types of maples, break off a leaf from each tree. The Norway maple will have a white milky substance oozing from the stem.
It was a wonderful and educational stroll through a beautiful native forest! So nice to have people around who could answer the question “ what’s this tree / plant called”?
Want to learn more?
Trees of the Carolinian Forest by Gerry Waldron
Join Justin Nicol at Rock Glen for an afternoon of identifying trees and other plants on this wonderful fall day.
Bring your camera and binoculars to explore the area while Justin shares his knowledge about the natural world.
Meet at 1pm at the Lambton Mall parking lot behind the old Montana’s, or meet the group out at Rock Glen at 2pm.
Join Justin Nicol as he takes you on a guided tour of Rock Glen this Sunday. Learn to identify trees and other plants during this fall afternoon walk.
Rock Glen Conservation Area is located in Arkona and offers scenic, historic and geologic diversity. While you are there, check out the fossils, mussels, birds and other artifacts at the Arkona Lions Museum and Information Centre.
Admission is $4.00 per person and you can come early and stay late.
Bring your camera and binoculars.
We hope to see you there!