Our People


David Kim

General Manager

Tania Tripp, M.Sc., R.P.Bio./C.A.B.

Tania is a senior biologist with more than 20 years of experience in ecology and wildlife resource management.  She has extensive experience in environmental impact assessments and permitting, habitat assessments, habitat mapping, and wildlife inventory, management and monitoring for a wide variety of species, including species at risk.  Tania joined Madrone in 1996, and is presently the General Manager.

Abbotsford Branch Manager

Roberta Adams, M.Sc., P.Geo.
Technical Lead: Earth Science and Engineering

Roberta is a geologist with over 10 years of field experience across Canada and the United States. She specializes in terrain and geohazard assessments, surficial geology, and geomorphology. Roberta has worked in government and private industry as a geologist and project manager on multiple environmental and engineering projects, TEM/TEI assessments, and in the development, mining, forestry, government, and oil and gas sectors. She also consults on aggregate and hydrogeology projects.

Senior Consultants

James Richard, HBES, P.Ag
Site Contamination Lead

James is a Professional Agrologist with more than 30 years of Canada-wide experience in delivering geo-environmental consulting services to private citizen and corporate clients, First Nations, and public sector agencies. His expertise includes due diligence environmental site assessments for business and real estate, Contaminated Sites investigations and remediation, soils and groundwater assessments, Agricultural Land and geo-resource surveys. James specializes in providing navigation strategies and assessment services on land development and Agricultural Land Reserve improvement projects, where one or more municipal-provincial-federal regulatory permit applications and approvals may be required.


Laurie Kremsater, M.Sc., R.P.F., R.P.Bio. 
Forestry, Wildlife, and Ecology Lead at Abbotsford Office.

Laurie is a professional forester and a professional biologist with 25 years of experience in ecology and wildlife resource management. Her work has focused on managing ecosystems as a whole and much of her focus has been on developing sustainable forest management plans that sustain biological diversity management in coastal forests of BC, but as well, she has worked, and continues to work, on specific species (forest birds, small mammals, ungulates) and specific ecological communities, including many at risk. Laurie is presently the Senior Habitat Ecologist in the Abbotsford office.


Trystan Willmott, B.Sc., A.Sc.T. Aquatic/Terrestrial Biologist.
Aquatics Lead – Fish Habitat and Riparian Assessments

Trystan is an Applied Science Technologist (Qualified Environmental Professional) with 13 years of experience in fishery and wildlife resource management throughout coastal BC. His main areas of expertise include stream classification, fish sampling, Riparian Area Regulation Assessments, watershed stream mapping, environmental monitoring and ecological assessments. Trystan is well versed in all applicable legislation with regard to fish and wildlife management and has extensive experience (and a good working relationship) with all levels of government responsible for resource management. Based on his level of experience, Trystan is also an accomplished project manager.


Anna Jeffries, B.A., ADGIS
Geographic Information Systems (GIS) Lead

Anna is our GIS Coordinator with almost 10 years of experience as a GIS Analyst. With technical expertise in GIS software and related extensions, she manages GIS/mapping related projects and staff. Her proficiencies include advanced spatial analysis, on-screen 3D mapping (PurView), and the use of scripting to solve spatial questions. She has contributed to numerous local and regional scale projects across BC and the Yukon, these include, terrestrial ecosystem mapping, terrain stability mapping, habitat modeling, environmental assessments, and riparian area assessments. She provides GIS support to the diverse specialties of the Madrone staff in the form of pre-field preparation, map production, database management, and final data submission. Her skill set is always evolving to better suit project needs and changes in technology. Recently, Anna has expanded her to abilities to include project management.