2016

Strategic Urban Forest Management Planning and Monitoring. Presented at Nederlanse Boom Infodag, Velp, The Netherlands June 9-10, 2016

Views from the Top: An Expedition to the Redwood Canopy. Presented at Nederlanse Boom Infodag, Velp, The Netherlands June 9-10, 2016

Challenges in the Urban Forest. Presented at the Canadian Urban Institute, Trees in the Public Realm: Staying Alive, Toronto Ontario, April 22, 2016

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Rochester Arborist Workshop, Rochester, Minnesota, February 25, 2016

Tree Risk Assessment with Advanced Methods. Presented at the Rochester Arborist Workshop, Rochester, Minnesota, February 25, 2016

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at the Rochester Arborist Workshop, Rochester, Minnesota, February 25, 2016

Assessing the Effects of EAB on Stem Structural Properties and Uprooting Behaviour of Ash Trees. Presented at the ISA Ontario Annual Conference, Ottawa, Ontario, February 17-19, 2016

Tree Selection, Planting and Care, Tree Soils: Understanding the Tree’s Growing Environment & Tree Stresses: Identifying Common Challenges to Tree Health. Presented at SavATree Sales Conference 2016, Florham Park, New Jersey, February 2-3, 2016

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Indiana Arborist Association 2016 Annual Conference, Indianapolis, Indiana, January 19-21, 2016

Tree Risk Assessment with Advanced Methods. Presented at the Indiana Arborist Association 2016 Annual Conference, Indianapolis, Indiana, January 19-21, 2016

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at the Indiana Arborist Association 2016 Annual Conference, Indianapolis, Indiana, January 19-21, 2016

Strategic Urban Forest Management Planning and Monitoring. Presented at CENTS 2016, Columbus, Ohio, January 11-13, 2016

Managing Trees on Construction Sites. Presented at CENTS 2016, Columbus, Ohio, January 11-13, 2016

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at CENTS 2016, Columbus, Ohio, January 11-13, 2016

2015

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at Green Industry Show & Conference, Calgary, Alberta, November 19, 2015

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at TCIA EXPO Pittsburgh, Pennsylvania, November 12, 2015

Conservation Arboriculture and Tree Risk Assessment: Maintaining Old Trees in the Human Landscape. Presented at the University of Toronto, Toronto November 5, 2015

Maintaining Old Trees in the Human Landscape. Presented at the International Society of Arboriculture Annual Conference, Orlando, Florida, August 11, 2015

Views from the Top: An Expedition to the Redwood Canopy. Presented at The Riverwood Conservancy, Mississauga, Ontario, July 14, 2015

Strategic Urban Forest Management Planning and Invasive Species Management. Presented at the International Advanced Practitioner Workshop for Forest Health Professionals, University of Toronto, Toronto June 18, 2015

Tree Biomechanics: Where are we now? Presented at the Arboriculture Australia National Conference, June 1, 2015

Strategic Urban Forest Management Planning and Monitoring. Presented at the Arboriculture Australia National Conference, June 1, 2015

Tree Biomechanics: Where are we now? Presented at the International Society of Arboriculture West Coast Chapter Annual Conference, Yosemite, California, April 30, 2015

How does the OPFA support Urban Forestry? Presented at the Annual Ontario Professional Foresters Association Conference, Toronto, Ontario, April 8-10, 2015

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Presented at the 53rd Annual Minnesota Shade Tree Short Course, Arden Hills, Minnesota, March 17-18, 2015

Views from the Top: An Expedition to the Redwood Canopy. Presented at the 53rd Annual Minnesota Shade Tree Short Course, Arden Hills, Minnesota, March 17-18, 2015

Tree House Installation: Learning as we go. Presented at the Sachverständigen-Arbeitsgemeinschaft (SAG) Annual Conference, Strasbourg, France, March 1, 2015

When is a tree dead? Panel discussion and presentation at the Landscape Ontario Congress Conference, Toronto, ON, January 6-8, 2015

2014

Conservation Arboriculture and Tree Risk Assessment: Maintaining Old Trees in the Human Landscape Presented at the Green Industry Show and Conference, Edmonton, AB, November 13, 2014

Views from the Top: An Expedition to the Redwood Canopy. Presented at the Green Industry Show and Conference, Edmonton, AB, November 13, 2014

Tree Biomechanics: Where are we now? Co-presented at the SIAQ Congress, Montreal, Quebec, October 31, 2014

Tree Biomechanics: Where are we now? Presented at the Canadian Urban Forest Conference, Victoria, BC, September 30 – October 3, 2014

Practical Applications of Tree Canopy Assessment. Co-presented at the Canadian Urban Forest Conference, Victoria, BC, September 30 – October 3, 2014

Reduce the Crown, Retain the Tree: A progressive approach to structural improvement in mature trees. Co-presented at the International Society of Arboriculture Annual Conference, Milwaukee, Wisonsin, August 2-6, 2014

Conference Moderator and Host. Soils and Urban Trees Conference. The Biltmore Estate, Asheville, North Carolina, June 18-19, 2014

Tree Biomechanics: Where are we now? Presented at the European Conference of Arboriculture, Turin, Italy, May 26-28, 2014

Emerald Ash Borer (EAB) Management Planning in a Canadian Context. Presented at the European Conference of Arboriculture, Turin, Italy, May 26-28, 2014

Views from the Top: An Expedition to the Redwood Canopy. Presented at the European Conference of Arboriculture, Turin, Italy, May 26-28, 2014

Engaged in a research Fellowship with the Forest Research Institute Malaysia (FRIM) presenting numerous urban forestry and arboricultural lectures to key FRIM personal throughout Malaysia, April 21-29, 2014

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the ISA Ontario Annual Conference, Huntsville, Ontario, February 12-14, 2014

Views from the Top: An Expedition to the Redwood Canopy. Presented at the ISA Ontario Annual Conference, Huntsville, Ontario, February 12-14, 2014

Managing Trees on Construction Sites. Presented at the ISA Ontario Annual Conference, Huntsville, Ontario, February 12-14, 2014

Tree Preservation and Risk Assessment: How they work together. Presented at New England Grows, Boston, Massachusetts, February 5-7, 2014

2013

Conservation Arboriculture: Practical Approaches to Managing Aging Trees. Keynote Address at the International Society of Arboriculture Mid-Atlantic Chapter Annual Conference, Fredericksburg, VA, October 14 -15, 2013

Tree Risk Assessment Methods: From Simple to Complex. Presented as part of the field day events at the International Society of Arboriculture Mid-Atlantic Chapter Annual Conference, Fredericksburg, VA, October 14 -15, 2013

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented to the Guelph Urban Forest Friends as part of National Tree Week, Guelph, ON September 26, 2013

Tree Biomechanics: Where are we now? Presented at the Arboricultural Association 47th Annual Conference, Exeter University, Exeter, UK, September 8-11, 2013

A Framework for Strategic Urban Forest Planning and Monitoring. Presented at the International Society of Arboriculture Annual Conference, Toronto, Ontario, August 3-7, 2013

Views From the Top: An Expedition to the Redwood Canopy. Presented at the International Society of Arboriculture Annual Conference, Toronto, Ontario, August 3-7, 2013

Tree Selection Care and Planting, Tree Soils and Identifying and Addressing Urban Trees Stresses. Presented at the Local Enhancement & Appreciation of Forests (LEAF) Tree Tenders Training Class, Toronto, Ontario, May 25, 2013

Heritage tree Conservation: Maintaining Old Trees in the Human Landscape. Presented at the Urban Forests & Political Ecologies Conference, Hart House, University of Toronto, Toronto, ON, April 18, 2013

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Halton/North Peel Naturalist Club, Georgetown, ON, April 9, 2013

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Community Tree Conference, Lenoir-Rhyne University, Ashville, NC, March 15-16, 2013

Designing with Trees in Mind. Presented at the Community Tree Conference, Lenoir-Rhyne University, Ashville, NC, March 15-16, 2013

Young Tree Pruning: A Solid Foundation for Community Trees. Presented at the Community Tree Conference, Lenoir-Rhyne University, Ashville, NC, March 15-16, 2013

Tree Management Planning for Golf Courses. Presented at “ Growing for Golf” The Canadian International Turfgrass Conference & Trade Show, Toronto, Ontario, January 25-29, 2013

2012

Conservation Arboriculture: Practical Approaches to Managing Aging Trees. Presented at the International Arboriculture Summit, Hong Kong, China, November 19-21, 2012

Designing with Trees in Mind. Presented at the International Arboriculture Summit, Hong Kong, China, November 19-21, 2012

A Framework for Strategic Urban Forest Planning and Monitoring. Presented at the International Arboriculture Summit, Hong Kong, China, November 19-21, 2012

Conservation Arboriculture and Tree Risk Assessment: Maintaining Old Trees in the Human Landscape. Presented to forestry students at the University of Toronto, Toronto, Ontario, November 14, 2012

Tree Assessment and Management on Development sites Workshop. A Two day workshop hosted by Philip van Wassenaer and Jeremy Barrell. Black Creek Pioneer Village, Toronto, Ontario, Oct 18-19, 2012

Tree Inventories and Their Utility in Urban Forest Management. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Canmore, Alberta, October 15-17, 2012

Tree Soils: Understanding the Tree’s Growing Environment. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Canmore, Alberta, October 15-17, 2012

Views From the Top: An Expedition to the Redwood Canopy. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Canmore, Alberta, October 15-17, 2012

Tree Risk Assessment & Report Writing. Presented with Jeremy Barrell as a pre-conference workshop at the International Society of Arboriculture Prairie Chapter Annual Conference, Canmore, Alberta, October 15-17, 2012

Tree Assessment and Management on Development sites Workshop. A Two day workshop hosted by Philip van Wassenaer and Jeremy Barrell. Gleneagles Golf Course, West Vancouver, British Columbia, Oct 11-12, 2012

Tree Protection By-laws: How Are They Working. Presented at the Canadian Urban Forest Conference, London, Ontario, October 2-4, 2012

Views From the Top: An Expedition to the Redwood Canopy. Presented at the Canadian Urban Forest Conference, London, Ontario, October 2-4, 2012

Conservation Arboriculture: Practical Approaches to Managing Aging Trees. Presented at the International Society of Arboriculture Annual Conference, Portland, Oregon, August 11-15, 2012

Testing Tree Stability using Engineering-based Tree Pulling Tests: Research meets Practice. Presented at the International Society of Arboriculture Annual Conference, Portland, Oregon August 11-15, 2012

Testing Tree Stability using Engineering-based Tree Pulling Tests: Research meets Practice. Presented at the Barcham Conference, The Old Hall, Ely, United Kingdom, June 20, 2012

Tree Selection Care and Planting, Tree Soils and Identifying and Addressing Urban Trees Stresses. Presented at the Local Enhancement & Appreciation of Forests (LEAF) Tree Tenders Training Class, Toronto, Ontario, June 2, 2012

Tree Pruning Seminar: Part 2 – Pruning Maturing Trees. This one day educational workshop was presented to City of Kitchener Forestry Staff in Kitchener, Ontario, May 15, 2012

Conference Moderator and Host. Soils and Urban Trees Conference. University of British Columbia, Vancouver, British Columbia, May 3-4, 2012

Testing Tree Stability using Engineering-based Tree Pulling Tests: Research meets Practice. Presented at Western Chapter ISA 78th Annual Conference and Trade Show, Pacific Grove, California, April 29-May 2, 2012

Views from the Top: An Expedition to the Redwood Canopy. Presented at Western Chapter ISA 78th Annual Conference and Trade Show, Pacific Grove, California, April 29-May 2, 2012

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario on March 30, 2012

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at Mississauga Master Gardeners, Mississauga, Ontario March 8, 2012

Tree Pruning Seminar: Part 1 – Tree Biology and Young Tree Pruning. This one day educational workshop was presented to City of Kitchener Forestry Staff in Kitchener, Ontario, March 4, 2012

Criteria and Indicators for Urban Forest Management Planning and Monitoring. Presented at York Region Urban Forest Study: Stakeholders Workshop, City of Vaughan Civic Centre, Vaughan Ontario, February 29, 2012

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Long Island Arborists Association 40th Symposium at Planting Fields Arboretum, Oyster Bay, New York, February 14, 2012

Tree Risk Assessment Methods: From Simple to Complex. Presented at the Long Island Arborists Association 40th Symposium at Planting Fields Arboretum, Oyster Bay, New York, February 14, 2012

Conservation Arboriculture and Tree Risk Assessment: Maintaining Old Trees in the Human Landscape. Presented a guest lecture to Students at the University of Toronto, Toronto, Ontario February 7, 2012

Conservation Arboriculture and Tree Risk Assessment: Maintaining Old Trees in the Human Landscape. Presented at the Landscape Ontario Congress Conference, Toronto, Ontario, January 12, 2012

Designing with Trees in Mind. Presented at the Landscape Ontario Congress Conference, Toronto, Ontario, January 9, 2012

2011

Urban Trees – Ours to Protect. Presented to the Environmental and Resource Management students at the University of Toronto Mississauga Campus, Mississauga, Ontario, November 22, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at The Riverwood Conservancy Fall Workshop, MacEwan Field Station, Mississauga, Ontario, November 8, 2011

The Myth of Tree Replacement. Presented at the Ontario Urban Forest Council Conference, Toronto Botanical Garden, Toronto, Ontario, November 3 – 4, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Credit Valley Conservation Authority 2011 Stewardship Forum, University of Toronto Mississauga Campus, Mississauga, Ontario, October 15, 2011

Criteria and Indicators for Strategic Urban Forest Management Planning and Monitoring. Presented at the Pickering Urban Forest Study: Stakeholders Workshop, Pickering, Ontario, October 6, 2011

PiCUS Tomography Training Program. French language lecture and field study presented to Hydro Quebec Forestry Staff, Montreal, Quebec, September 20 – 21, 2011

Managing Trees and Construction. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Winnipeg, Manitoba, September 12 – 14, 2011

Tree Protection By-laws: Are they working? Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Winnipeg, Manitoba, September 12 – 14, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Society of Municipal Arborists International Urban Forestry Conference, Milwaukee, Wisconsin, September 25 – 28, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Halton Region Master Gardeners Technical Update Workshop, Royal Botanical Gardens, Burlington, Ontario, September 17, 2011

Conservation Arboriculture. Presented at the Cloverleaf Garden Club, Mississauga, Ontario, June 15, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Keynote Address presented at the International Society of Arboriculture Florida Chapter Annual Conference, Jacksonville, Florida, June 12 – 14, 2011

Tree Risk Assessment Techniques from Simple to Complex. Presented at the International Society of Arboriculture Florida Chapter Annual Conference, Jacksonville, Florida, June 12 – 14, 2011

A View From the Top of the Redwood Forest. Presented at the International Society of Arboriculture Florida Chapter Annual Conference, Jacksonville, Florida, June 12 – 14, 2011

Heritage Tree Tour. Presented as part of the Local Enhancement & Appreciation of Forests (LEAF) organized tree tour program, Toronto, Ontario, May 28, 2011

Tree Selection Care and Planting, Tree Soils and Identifying and Addressing Urban Trees Stresses. Presented at the Local Enhancement & Appreciation of Forests (LEAF) Tree Tenders Training Class, Toronto, Ontario, May 14, 2011

Welcome Address and Conference Moderator. Soils and Urban Trees Conference. Toronto Botanical Garden, Toronto, Ontario, April 26 – 27, 2011

Strategic Urban Forest Management Planning: Model and Case Studies. Presented as one-day educational workshop at the Barcham Nursery, Eye Hill Drove, Ely, Cambridgeshire, United Kingdom, April 19, 2011

Strategic Urban Forest Management Planning using Criteria and Indicators. Presented at the Institute of Chartered Foresters National Conference, Trees, People and the Built Environment, Birmingham, England, April 13-14 2011

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, March 25, 2011

Conservation Arboriculture and Tree Risk Assessment. Presented lecture and conducted three workshops at the SavATree annual sales conference, Southbury, Connecticut, February 16 – 17, 2011

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Keynote Address at the Arboriculture Society of Michigan (ASM) Arborcon Conference, Lansing, Michigan, February 1-2, 2011

Testing Tree Stability using Engineering-based Tree Pulling Tests: Research meets Practice. Presented at the Arboriculture Society of Michigan (ASM) Arborcon Conference, Lansing, Michigan, February 1-2, 2011

Sustainable Urban Forest Management Planning using Criteria and Indicators. Presented at the Arboriculture Society of Michigan (ASM) Arborcon Conference, Lansing, Michigan, February 1-2, 2011

Forest Pest Management: An urban perspective. Presented at the 43rd Annual Forestry Symposium, Lakehead University, Thunder Bay, Ontario, January 21, 2011

Trees and Construction. Presented at the Landscape Ontario Congress Conference, Toronto, Ontario, January 11-13, 2011

Sustainable Urban Forest Management Planning using Criteria and Indicators. Presented at the Landscape Ontario Congress Conference, Toronto, Ontario, January 11-13, 2011

2010

Urban Tree Risk Assessment. This one day educational workshop focused on the methods, tools, and information relevant to visual examination of trees. Presented to 35 City of Mississauga Forestry Planning and Operational Staff in Mississauga, Ontario, December 16, 2010

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the Canadian Urban Forest Conference 9, Truro, Nova Scotia, October 7, 2010

Tree Stress and its Management. Presented at the Local Enhancement & Appreciation of Forests (LEAF) Tree Tenders Training Class, Toronto, Ontario, September 25, 2010

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Saskatoon, Saskatchewan, September 30, 2010

Sustainable Urban Forest Management Planning using Criteria and Indicators. Presented at the International Society of Arboriculture Prairie Chapter Annual Conference, Saskatoon, Saskatchewan, October 1, 2010

Sustainable Urban Forest Management Planning using Criteria and Indicators. Presented at the 44th National Amenity Arboriculture Conference, Manchester, United Kingdom, September 12, 2010

Minimally Invasive Tree Risk Assessment: A Canadian Perspective. Presented at the 44th National Amenity Arboriculture Conference, Manchester, United Kingdom, September 14, 2010

Testing Tree Stability using Engineering-based Tree Pulling Tests: Research meets Practice. Presented at ISA Tree Biomechanics Research Week and Symposium Kent, Ohio, August 27, 2010

Conservation Arboriculture: Maintaining Old Trees in the Human Landscape. Presented at the International Society of Arboriculture Annual Conference, Chicago, Illinois, July 27, 2010

Urban Tree Risk Assessment. This one day educational workshop focused on the methods, tools, and information relevant to visual examination of trees. Presented to 65 City of Toronto Forestry Planning and Operational Staff at the Botanical Gardens in Toronto, Ontario, June 25, 2010

Heritage Trees and their Societal and Ecological Benefits. Presented to the Oakville Master Gardeners in Oakville, Ontario, May 20, 2010

Le Dutch Trig, un vaccin contre la maladie Hollandaise de l’orme. Presented in collaboration with Jesse Nestor of Arborfolia at the SIAQ Congress in Varenne, Quebec, April 15, 2010

Conservation Arboriculture: State-of-the-art Technologies in Tree Preservation. This one day educational seminar was presented at the Connecticut Forest and Park Association at Sessions Woods Wildlife Management Area in Burlington, Connecticut, April 12, 2010

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, March 25, 2010

Sustainable Urban Forest Management Planning using Criteria and Indicators. Poster Presentation at the Million TreesNYC, Green Infrastructure and Urban Ecology Research Symposium, New York, New York, March 5-6, 2010

Trees and Construction. This one day educational seminar was presented in collaboration with Martha Barwinsky (City of Winnipeg) and Peter Simon (City of Toronto) to the City of Winnipeg Public Works Department as well as local consulting firms and contractors, Winnipeg, Manitoba, February 24, 2010

Sustainable Urban Forest Management Planning using Criteria and Indicators. This webcast was presented in collaboration with Dr. Andy Kenny for the Urban Natural Resources Institute Informational Webcast Series on January 27, 2010

2009

Conservation Arboriculture: Keeping old trees viable and safe. LEAF Tree Tenders Celebration, Gladstone Hotel, Toronto, Ontario, December 9, 2009

A Strategic Perspective on Managing Forest Pests in Urban Environments. Presented at the National Forest Pest Management Forum, Gatineau, Quebec, December 3, 2009

Dutch Trig and Dutch Elm Disease: Winnipeg Research Trial 2009. Presented at the annual general meeting of the STODED Society of Alberta, Edmonton, Alberta, November 19, 2009

Dutch Trig and Dutch Elm Disease: Winnipeg Research Trial 2009. Presented at the ISA
Prairie Chapter Workshop, Edmonton, Alberta, November 20, 2009.

Heritage Trees and their Societal and Ecological Benefits. Presented to Neighbourwoods Elora, Elora, Ontario, November 5, 2009

The City of Guelph Strategic Urban Forest Management Plan and Tree Protection. Presented at the AGM and annual conference of the Ontario Urban Forest Council, University of Guelph Arboretum, Guelph, Ontario, November 12, 2009

Urban Tree Protection – The Role of the Landscape Architect. This lecture was presented to students in the Landscape Architecture program at the University of Toronto, Toronto, Ontario, October 22, 2009

Sustainable Urban Forest Management Planning using Criteria and Indicators. Presented at the 2009 Society of Municipal Arborists 45th Annual Conference, Savannah, Georgia, October 7, 2009

Dutch Trig and Dutch Elm Disease: Winnipeg Research Trial 2009. Presented at the North Central Forest Pest Workshop, Winnipeg, Manitoba, September 29, 2009

Assessing the Safety of Your Treehouse Tree: Minimally Invasive Tree Risk Assessment Techniques. Presented at the Global Treehouse Symposium, Fall City, Washington, September 19, 2009

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, April 3rd, 2009

Street Trees in Canada: Threats and Opportunities. Presented at BTL Bomedienst, Appledorn, The Netherlands, February 6, 2009

Conservation Arboriculture and Non-Invasive Risk Assessment Techniques. Presented at New England Grows, Boston, Massachusetts, February 5, 2009

2008

Assessing the Safety of Your Treehouse Tree: Non-Invasive Tree Risk Assessment Techniques. Presented as a webcast at the Global Treehouse Symposium, Fall City, Washington, October 12, 2008

Defending Your Dream (Treehouse): A Tale of Success. Presented as a webcast at the Global Treehouse Symposium, Fall City, Washington, October 12, 2008

Street Trees in Canada: Threats and Opportunities. Presented at the annual conference of the Czech Republic Chapter of the International Society of Arboriculture, Brno, Czech Republic, August 19, 2008

Non Destructive Risk Assessment Tools: Sonic Tomography and Statics Integrating Assessment Methods – a North American Practitioners Perspective. Presented at the International Society of Arboriculture Annual Conference, St. Louis, Missouri, July 28, 2008

Conservation Arboriculture: This one-day seminar was presented in collaboration with Neville Fay in Asheville NC, Philadelphia PA and Santa Rosa CA on June 16, 17 and 19, 2008

Non-Invasive Risk Assessment Techniques: Presented at the Ohio Urban Foresters Symposium, March 20, 2008

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, April 3, 2008

Tree Support Systems – From Traditional Methods to Modern Dynamic Crown Support Systems. Presented at the Great Lakes Trade Exposition, Grand Rapids, Michigan, January 7, 2008

Non-Invasive Tree Risk Assessment Techniques. Presented at the Great Lakes Trade Exposition, Grand Rapids, Michigan, January 7, 2008

2007

Urban Tree Protection – The Role of the Landscape Architect. This lecture was presented to students in the Landscape Architecture program at the University of Guelph, Guelph, Ontario, November 15, 2007

Heritage Trees and Society. Keynote address to the ISA Prairie Chapter Annual Conference, Calgary, Alberta, November 6, 2007

Non-Invasive Tree Risk Assessment using Sonic Tomography – Hands on Seminar. Presented as a pre-conference workshop at the ISA Prairie Chapter Annual Conference, Calgary, Alberta, November 5, 2007

Statics Integrated Tree Risk Assessment – Tree Pulling Tests. Presented to the ISA Prairie Chapter Annual Conference, Calgary, Alberta, November 6, 2007

Non-Invasive Tree Risk Assessment Techniques. Lecture and field demonstrations presented at the World Treehouse Conference, Takilma, Oregon, October 7, 2007

Tree and Shrub Pruning: This one day seminar was presented twice as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, March 29 and April 3, 2007

2006

When trees get in the way of the job: Managing trees on your job site: Presented at Toronto Home Builders Show, Toronto, Ontario, November 30, 2006

Non-Invasive Tree Risk Assessment Techniques. Lecture and field demonstrations presented at the 7th Canadian Urban Forest Conference, Quebec City, Quebec, October 13, 2006

Strategic Urban Forest Planning for Communities. Presented to the Environmental Advisory Committee, Town of New Tecumseth, Ontario, July 18, 2006

SIA and Tree Pulling Tests in Canada and the USA. Presented to the 2006 AGM of the SAG Baumstatik, Vienna, Austria, May 2, 2006

Tree and Shrub Pruning: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, March 17, 2006

2005

Heritage Tree Protection and the OHTA Initiative. Presented at the 41st Annual Meeting of the Society of Municipal Arborists, Windsor, Ontario, September 20, 2005

Invaders of the Urban Forest 2005. An overview of current invasive insects affecting trees in Canada. Presented at the Atlantic Chapter of the International Society of Arboriculture, AGM, Wolfville, Nova Scotia, September 16, 2005

Modern Risk Assessment and Hazard Mitigation – This keynote seminar was presented as a full-day workshop at the Atlantic Chapter of the International Society of Arboriculture, AGM, Wolfville, Nova Scotia, on September 15, 2005

Innovations in Arboriculture. Presented at the International Society of Arboriculture Ontario Chapter Annual Conference, Niagara Falls, Ontario, February 25, 2005

Introduction to Tree and Shrub Pruning. Presented as part of the Lee Valley Tools Customer Lecture Series, March 24, 2005

2004

Tree Statics and the SIA Method. Assisted Erk Brudi of Germany to present three workshops on engineering – based tree risk assessments using pulling tests. With Arbormaster Canada in Kelowna, B.C., October 19, 2004, Red Deer Alberta, October 25, 2004 and Oakville, Ontario, November 8, 2004

Strategic Urban Forest Management Planning – Preparing for the Future. Presented to the 6th Canadian Urban Forest Conference, Kelowna, British Columbia, October 21, 2004

Heritage Trees – Ours To Protect – Part 2. Presented at the Ontario Urban Forest Council Annual General Meeting, Toronto, October 5 , 2004

Urban Forest Planning – The Big Picture. Presented at the Town of Oakville’s Urban Forest Management Planning Workshop, Oakville, Ontario, June 29, 2004

Heritage Trees – Ours To Protect. Presented at the Ontario Urban Forest Council Spring Workshop, Mississauga, Ontario, June 19, 2004

Urban Forest Best Management Practices. Presented to the Ontario Parks Association 48th Annual Educational Seminar, Hamilton, Ontario, March 25, 2004

Risk Assessment, Cabling and Bracing. This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, March 10, 2004

Tree Care and Maintenance: This one day seminar was presented as part of the Landscape Ontario Winter Educational Seminar series in Milton, Ontario, February 17, 2004

Mitigating Tree Risks: Traditional and Dynamic Methods. Presented to the Niagara Parks Commission School of Horticulture Annual Alumni Conference, Niagara Falls, Ontario, January 23, 2004

Innovations in Risk Assessment and Hazard Mitigation. Presented at the meeting of the Municipal Arborists and Urban Foresters Committee, Milton Ontario, January 21, 2004

Invaders of the Urban Forest.. Presented at the Landscape Ontario Congress 2004, Toronto, Ontario, January 13, 2004

2003

Strategic Urban Forest Planning for Small Communities. Presented at a special seminar on Urban Forest Management and Inventories, Oakville, Ontario, November 12, 2003

Strategic Urban Forest Planning for Small Communities. Presented to the 2003 National Parks and Grounds Symposium, Communities in Bloom, Stratford, Ontario, September 25, 2003

Hazard Mitigation: An Introduction to Dynamic Cabling, Philosophies, Materials and Methods. Presented as part of an Arbormaster Training seminar in Saskatoon, Saskatchewan, June 10, 2003

Educating Urban Foresters in Canada: Past, Present and Future. Presented to the 6th IUFRO European Forum on Urban Forestry Arnhem, The Netherlands and Flanders, Belgium, May 21 – 23, 2003

Hazard Mitigation: An Introduction to Dynamic Cabling, Philosophies, Materials and Methods. Presented for the spring workshop of the Ontario Chapter of The International Society of Arboriculture, Oakville, Ontario, April 4, 2003

2002

Strategic Urban Forest Planning for Small Communities. Presented at a special seminar on Urban Forest Management and Inventories, Oakville, Ontario, November 12, 2003

Strategic Urban Forest Planning for Small Communities. Presented to the 2003 National Parks and Grounds Symposium, Communities in Bloom, Stratford, Ontario, September 25, 2003

Hazard Mitigation: An Introduction to Dynamic Cabling, Philosophies, Materials and Methods. Presented as part of an Arbormaster Training seminar in Saskatoon, Saskatchewan, June 10, 2003

Educating Urban Foresters in Canada: Past, Present and Future. Presented to the 6th IUFRO European Forum on Urban Forestry Arnhem, The Netherlands and Flanders, Belgium, May 21 – 23, 2003

Hazard Mitigation: An Introduction to Dynamic Cabling, Philosophies, Materials and Methods. Presented for the spring workshop of the Ontario Chapter of The International Society of Arboriculture, Oakville, Ontario, April 4, 2003

Urban Forests: Crossing Boundaries and Connecting Communities. Presented at the 9th Annual A.D. Latornell Symposium, Alliston, Ontario, November 13, 2002

Hazard Mitigation: An Introduction to Dynamic Cabling, Philosophies, Materials and Methods. Presented as a post-conference seminar at the 5th Canadian Urban Forest Conference, Markham, Ontario, October 10, 2002

Cabling and Bracing: An Introduction to Materials and Methods. One-day seminar presented to the Prairie Chapter of the International Society of Arboriculture, Brandon, Manitoba, March 15, 2002

2001

An Opportunity to Preserve Trees in Mississauga. Presented to The City Council General Committee Meeting, The Corporation of the City of Mississauga, Mississauga, Ontario, December 5, 2001

Neighbourwoods: Moving from Planting Trees to Planning Forests. One day workshop presented at Black Creek Pioneer Village, Toronto, Ontario, September 29, 2001

Trees and the Urban Forest: Problems and Solutions. Presented to the North Leaside Women’s Group, Toronto, Ontario January 23, 2001

2000 & More

Municipal Elm Tree Mortality. Presented at the Ontario Shade Tree Council workshop entitled “Ensuring the Future of Heritage Elms”, June 2, 2000

Pride in Stewardship of the Urban Forest. Presented to the Ontario Forestry Association, Annual General Meeting, February 11, 2000

Tree Preservation in Missisauga: Do current methods preclude the necessity for a Tree Preservation By-law? Presented to The City Council General Committee Meeting, The Corporation of the City of Mississauga, Mississauga, Ontario, October 20, 1999

Elm Monitoring and Management on Metro Lands. Presented at a meeting of the Municipal Arborists and Urban Foresters group at the University of Guelph, Guelph, Ontario, June 14, 1999

Strategic Urban Forestry Planning for Small Communities. Presented at: Urban Forestry at the Faculty of Forestry, University of Toronto: A meeting of the Canadian Institute of Forestry hosted by the Urban Forestry Group, Toronto, Ontario, November 18, 1998

Strategic Urban Forestry Planning in a Small Community: The Town of Whitchurch- Stoufville. Presented at: Information Update on Urban Forestry Research in the Regional Municipality of York., Newmarket, Ontario, September 4, 1998

Environmental Impact and Climbing Access in Ontario. Paper presented at: Environmental Ethics & Practices in Backcountry Recreation Conference, University of Calgary, Calgary, Alberta, November 12-14, 1995