Mariellen Calabro received her BS and MA degrees in
Biology from the College of William and Mary in Virginia. She is a Registered
Environmental Manager with the National Registry of Environmental
became a Certified Arborist with the International Society of Arboriculture in
2008 and became a Board Certified Master Arborist in 2015.
The ISA Board Certified Master Arborist® credential is the highest level of certification offered
by ISA. This credential recognizes ISA Certified Arborists® who have reached
the pinnacle of their profession. In addition to passing an extensive
scenario-based exam, candidates must abide by a Code of Ethics, which
ensures quality of work. Fewer than two percent of all ISA Certified Arborists®
currently hold this certification.
addition, Mariellen is a TRAQ qualified arborist. TRAQ (Tree Risk Assessment
Qualification) is an ISA qualification program that trains arborists how to use
the methodologies outlined in the ISA Best Management Practices for Tree Risk
Assessment. This qualification promotes the safety of people and property by
providing a standardized and systematic process for assessing tree risk. The
results of a tree risk assessment can provide tree owners and risk managers
with the information to make informed decisions to enhance tree benefits,
health, and longevity.
has been the City Forester in DeLand since April 2006.