WRN Teens – Buckthorn

WRN Teens – Buckthorn

After 10 months and 12 activities the Waterloo Region Nature Teens finished their first year with a flourish.
 
Seven intrepid teens made a return trip to the University of Waterloo Environmental Science Lab on Saturday June 8. We were met by Payton, a third year student specializing in plant ecology. With great enthusiasm she shared her knowledge and outdoor experience with us.
 
 
We started our 3 hour activity in the Environmental Science Lab. There we were introduced to the threat of ticks, unlikely but possible hitch hikers on the University grounds. Thank goodness we had worn long sleeved shirts and jeans, despite the heat.
 

Using a dichotomous tree key, we determined the physical characteristics of Buckthorn in order to better identify it in the field. This unwanted shrub from Europe has successfully invaded most temperate North American forests, displacing traditional species such as Blue Cohosh and Maple.

After the Lab session, we hiked to a deciduous forest invaded by both mature and immature Buckthorn plants. Payton set up a grid, within which we were free to remove small Buckthorn plants. Their deep fibrous roots provided a real challenge when hand pulling one by one. The numerous thorns on the Buckthorn’s branches made it even more difficult to grasp and pull, even when wearing heavy gloves.

We soon discovered that even a Buckthorn with a diameter of less than 2 cm was nearly impossible to pull out by hand, even with 2 or 3 Teens pulling.  A jack-like instrument called a “Puller Bear” was used to lever and extract larger plants. It was a real team effort.
 

Having worked up an appetite, we returned to the lab for a pizza lunch. During our meal we discussed the pros and cons of all the activities we attempted during the past year. We finished off our last session of the year by proposing and planning longer activities and salamander monitoring for the 2019-2020 season.

 
Big thanks to Bev Raimbault from UW Ecology Lab for inviting us and to Payton Landsborough for all the hands-on work. 
 
Looking forward to seeing new and returning Teens next September. Have a safe and adventurous summer.
 
Linda Dutka