Siegfried Guggenmoos, B.Sc.(Agr.), P.Ag., Principal of Ecological Solutions, Inc. is a Professional Agrologist, with over 30 years of experience in the electric/gas utility corridor vegetation management business.

Mr. Guggenmoos has designed, implemented and provides assessments of utility vegetation management programs. In evaluating the prudence of vegetation management programs Mr. Guggenmoos has developed methodologies to assess their efficacy by predicting the impact of vegetation management program as practiced, on the future costs and reliability of electric systems.

Areas of Consultation:

• Storm hardening electric transmission and distribution systems to quantitatively manage tree-caused service interruptions
• Advise and develop protocols for assessments of power line tree exposure and mitigation
• Advise on least cost vegetation management by synchronizing economics and ecology
• Advise on impacts of vegetation management program alternatives, modifications
• Provide context for vegetation management, greenhouse gas mitigation measures in a competitive energy market
• Facilitate for management, staff, contractors and stake holders an actionable understanding of ecological principles and their impacts on vegetation management needs and costs
• Provide project management; expert review of programs and proposals
• Develop and advise on quantification, monitoring and verification of biotic greenhouse gas mitigation measures

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Julian Forbes-Laird is a Chartered Arboriculturist, Arboricultural Association Registered Consultant, experienced Expert Witness and Principal Consultant of Forbes-Laird Arboricultural Consultancy Ltd. Mr. Forbes-Laird has a professional practice working throughout the UK and overseas. He covers all aspects of arboriculture, specializing in planning, tree safety and litigation related matters.

Mr. Forbes-Laird is supported by a team of regionally based consultants, giving him national and international reach. He sets the standard for client service, works throughout the UK and abroad, provides commercially realistic strategic advice, prepares sensitive yet practical management plans, works within project design teams to evolve arboriculturally defensible layouts, wins planning appeals, and handles an enormous amount of work under pressing deadlines helping clients' achieve the best outcome.

Mr. Forbes-Laird is widely recognised as an authority on legal issues pertaining to trees and is an experienced Expert Witness. His expert services include Pre-Action Case Evaluation, TPO Prosecutions, Forensic Accident Investigation and Tree Root Damage to Buildings.

Other Services Include:

Planning for Developers and Local Authorities

Tree Preservation Orders (TPO's)

Safety Inspections

Subsidence

Expert Witness

Landscape Design

Marty Shaw is an Arboricultural Expert specializing in Plant & Tree Issues. His extensive experience and training can help solve the most complex tree issues including tree safety policy, insurance claims and personal injury cases. He is a plant and tree diagnostician who has many years of land planning, nursery, landscape design, installation and maintenance experience.

Mr. Shaw is a Registered Consulting Arborist (#470), ISA Certified Arborist (#SO-1234), a Certified Nursery Professional, and a Licensed Horticulturist.

Expert Witness Services:

Insurance Claims

Workplace Safety

Land Safety

Tree Hazard Evaluations

Risk Assesments

Tree Health Assessments

Tree Appraisals / Valuations

Diagnostics and Testing

Tree Case Consultation

Professional Services:

Training & Education

Tree Inventories

Canopy Evaluation

Historic Tree Preservation

Landscape Design

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John A. Harris, Principal of Landscape Economics, LLC, and President of Earth Advisors, Inc., is a LANDSCAPE ECONOMIST who has worked in the Arboriculture, Forestry, landscape and horticultural fields for over 20 years. Mr. Harris has provided reputable consulting, education and project management services for a wide variety of projects across the United States and internationally, in both temperate and tropical ecosystems.

Areas of Expertise:

Expert Witness for Arboricultural, Landscape, Nursery Values and Conditions

Landscape and Tree Risk Assessments

Landscape and Tree Value Appraisals

Landscape and Tree Damage Appraisals

Storm Damage Assessments and Recovery Plans

Landscape Health and Condition Evaluations

Arboricultural Health and Condition Evaluations

Landscape, Arboricultural, Forestry, Environmental Project Management

Environmental Due Diligence

Environmental Permitting and Mitigation Planning

Environmental Permit Negotiations

Municipal Tree Inventory and Management Plans

GPS/GIS Environmental Mapping Projects

Forest Resources Management Plans

Grounds Maintenance Practices

Arboricultural Practices

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Eric H. Hoyer is a Certified Arborist involved in all aspects of Forestry and Arboriculture on both private and public lands. A Registered Consulting Arborist through ASCA, his background includes timber sales, reforestation, prescribed burning, management plans, herbiciding and appraisals. Mr. Hoyer coordinates site prep and herbicide / reforestation contractors and has experience with site preparation and reclamation planting on phosphate mines. He has also been a party to several real estate transactions involving acreage.

Mr. Hoyer has been involved in numerous court cases, providing depositions and serving as a qualified expert witness. His clients have included attorneys, landowners, homeowners, governmental entities, appraisers and others.

Services Offered:

Forestry Management

Forest Management Plans

Urban Forestry Management Plans

Timber Appraisals

Tree Inventories

Tree Risk Assessments

Tree Appraisals

Protection of Trees During Construction

Expert Testimony

Steven Geist, Plant Pathologist, has 25 years of Landscape Care Experience with Swingle Lawn, Tree and Landscape Care in Denver, Colorado. He is a Registered Consulting Arborist, ISA Board Certified Master Arborist, and a Certified Professional Agronomist.

Mr. Geist specializes in working with urban landscapes, diagnosing plant problems and designing solutions. As part of his work at Swingle, he has had the opportunity to consult with homeowners concerned with a single tree all the way up to 1,000 acre casualty losses.

Mr. Geist's consulting has included property in Wyoming, Kansas, Colorado and NewMexico.

John Booth, the Principal Consultant and Practice Director of Sylvanus Arboricultural Consultants Ltd., is a Chartered Aboricuturalist and Chartered Environmentalist and one of the UK’s most widely qualified Arboricultural Consultants. He has over 25 years experience in both the private and public sectors and has written numerous articles and papers for respected publications including the International Journal of Urban Forestry for which he is also a referee.

Mr. Booth and Sylvanus Ltd. are regularly instructed by both developers and Local Planning Authorities (LPA’s) who are keen to ensure a satisfactory outcome from the planning process, (i.e. an appropriate balance between tree retention and realizing a site's development potential). All such work is carried out in accordance with the guiding principles of British Standard 5837 ‘Trees in Relation to Construction – Recommendations.’

Mr. Booth is a Bond Solon/Cardiff University trained Expert Witness and a member of the Expert Witness Institute. He has many years experience in both courtroom and planning enquiries.

Services Include:

Tree Inspection & Survey - Single Tree, Large Population, Mortgage Lending, Safety and Subsidence Issues

Tree Preservation Orders (TPO's) and Conservation Areas - Detailed Specifications for Tree Work Applications for Trees with Statutory Protection

Trees and Development - Tree Surveys for Submission with Planning Applications
Tree Constraints Plans (TCP’s)
Tree Protection Plans (TPP’s)
Arboricultural Impact Assessments (AIA)
Arboricultural Method Statements (AMS)

Russell E. Carlson, DBA Tree Tech Consulting, is a Registered Consulting Arborist, ISA Board Certified Master Arborist and Forensic Arborist.

Qualifications:

Member, American Society of Consulting Arborists

Registered Consulting Arborist #354, 1994

Council of Tree and Landscape Appraisers, Representative and co-author

Member: International Society of Arboriculture

ISA Board Certified Master Arborist #PD-0008B, 1983

Certified Tree Risk Assessor #891, PNW ISA

Court-approved witness in Delaware, Maryland, Pennsylvania and New Jersey

Services: With more than 32 years of experience in Arboriculture, Tree Tech Consulting offers services in the following area:

Diagnosis of Tree and Landscape Problems

Risk Assessment and Hazardous Tree Inspections

Forensic Investigations

Litigation and Insurance Support

Tree and Landscape Appraisal and Valuation

Arboricultural Practices

Insect and Disease Identification

Tree Protection and Management for Construction

Preparation of Contract Specifications

Tree

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