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Wildlife Danger Tree Assessor

Hazard Reduction

Assessing forest stands and individual suspect trees for hazard mitigation treatment including falling or establishing no work zones on any site where forestry workers will be present including, in many cases, those disturbed by logging, wildfire, pests or disease

Hazard Reduction
Experience/Training Req.

Experience Level

Seasonality

Moderate

Physical Demands

Being a Wildlife Danger Tree Assessor (WDTA) involves critical safety work to protect the public, wildfire crews and forest and field workers from the hazards of forest stands and individual trees destabilized or damaged by disturbance. To be effective you will have woods experience and an intimate familiarity with trees and their species characteristics. WDTA's are rewarded by applying their background to the forensic complexity of analyzing the effects of pests, fire or harvest on trees and stands. With the field evidence WDTAs then apply the science and rigour of their training to identify which trees are likely suspect and need to be investigated and treated. Besides the satisfaction of solving on the ground problems, the work is physical with the benefits of being in natural settings. Assessors often work independently relying on their judgement and growing expertise assessing danger trees in the varied forests of BC. In emergency response settings like wildfire they are important part of the incident command system where they often work on teams sharing and gaining experience, knowledge and earned confidence.

A DAY IN THE LIFE

The work involves a concentration of mental acuity and physical exertion, so you check in with yourself at the beginning of the day. Assessing a site for hazards contains risk. Your work's results will control risks to others. You need to be mindful and intentional to do your job well. On site you check your equipment which likely will include a radio, notebook, clinometer, compass, PPE, additional clothing, water, axe, flagging etc. You begin by orienting yourself to the map of the work area and any prescriptions or instructions involved to guide your day. Your day may involve hiking and covering a lot of ground in all kinds of weather. You investigate suspect trees often designating them individually, documenting your evidence and actions. Throughout the day, or at its conclusion you write your report and communicate your findings as needed.

WORKING CONDITIONS

This outdoor work is subject to all weather, rough terrain and possible encounters with insects and wildlife. Work on wildfire settings means operating in a dynamic setting with particular risks requiring following fireline safety practices including knowing escape routes and safety zones, attending briefings and coordinating with other suppression activities.

CYCLICAL NATURE OF ROLE

Danger tree assessing tends to be seasonal with work concentrated around the wildfire season and the forestry management and resource development field seasons across the province.

REQUIRED EDUCATION & TRAINING

There are three modules for danger tree assessor training including:

Each course has requirements: view enrollment qualifications 

REQUIRED SOFT SKILLS

Appreciate the validity of Lao Tzu's statement, "To know one's ignorance is the best part of knowledge."
Be able to apply the rigour of the wildlife danger tree assessment system to the constantly variable presentations of the facts on the ground.
Ability to learn from others.
Ability to learn from experience and error.

REQUIRED HARD SKILLS


Three or more years of practical field experience in the area of forestry, resource management, parks management, wildland fire protection, arboriculture, geophysical exploration or a related field; and,
Grade 10 equivalency in reading, writing and arithmetic skills (including the ability to calculate percentages); and,
Ability to identify tree species native to BC; and,
Proven forestry measurement skills to determine tree diameter, height, lean, stem cross-section, and skill in distance measuring.

Additionally, candidates taking the Wildland Fire Safety module must also have the following course prerequisites at the time of registration:

Persons must have valid S100 certificate and demonstrate recent fire-line experience (at least 10 days over the previous three years); OR
Persons have a minimum five days of documented Dangerous Tree assessment experience (harvesting/silviculture, parks) in the previous calendar year.

ON THE JOB LEARNING

Map reading
Species Identification
Forestry Measurement and Management
Silviculture systems
Resource Sector Workplace Safety
Working with various resource sectors
Emergency and natural disaster response practices
Parks Management

FUTURE CAREER OPPORTUNITIES

Wildlife Danger Tree Assessor training is a professional development opportunity in areas of forestry, resource management, parks management, wildland fire protection, arboriculture, geophysical exploration and the energy sector.

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© WFCA 2025

Members of the Cache project team are grateful to live, work, and be in relationship with people from across many traditional and unceded territories, covering all parts of the land known as British Columbia, Canada. We thoughtfully offer this acknowledgement recognizing that reconciliation with Indigenous Peoples' is a commitment we all share as Canadians. We are grateful to live on this land and are committed to reconciliation, decolonization, and building relationships in our communities and workplaces. Land acknowledgements are one small step towards reconciling the relationships between settlers and Indigenous Peoples, in Canada. Reconciliation is a current and ongoing process. Being mindful of our participation is another step on the path of healing. Learn more about land acknowledgements and moving beyond them here: https://native-land.ca/resources/territory-acknowledgement/

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