Our Team

Our dedicated staff are problem solvers, big-picture thinkers, data driven, creative, innovative, and aspire to become trusted advisors to our clients. We work in five core practice areasAdaptive Management, Climate Change Adaptation, Environmental and Cumulative Effects Assessment, Fisheries and Aquatic Sciences, and International Development. Each practice area is led by one of our team leaders listed below.

Clint Alexander
President | Practice Area – Water Resource Mgmt.

Bio | in | rg

David Marmorek
Lead Scientist | Sr. Partner

Bio | in | rg

Carol Murray
Sr. Partner | Adaptive Management Lead

Bio | in | rg

Marc Nelitz
Sr. Systems Ecologist | Adaptive Management Lead

Bio | in | rg

Darcy Pickard
Sr. Statistician | Sr. Systems Ecologist | EA/CEA Lead

Bio

Brian Ma
Sr. Systems Ecologist | Fisheries & Aquatic Sciences Lead

Bio | in | rg

Marc Porter
Sr. Systems Ecologist

Bio | in | rg

Don Robinson
Sr. Systems Ecologist

Bio | in | rg

Cedar Morton
Sr. Systems Ecologist

Bio | in 

Sarah Beukema
Sr. Systems Ecologist

Bio

Alex Hall
Sr. Systems Ecologist

Bio | in | rg

Natascia Tamburello
Sr. Systems Ecologist | Science Communications Specialist

Bio | in | rg

Patricia de la Cueva Bueno
Environmental Specialist

Bio | in | rg

Erica Olson
Systems Ecologist

Bio | in

Hugh Stimson
Technology Integrator

Bio | in

Matthew Siegle
Systems Ecologist

Bio | in

Ravidya Burrowes
Climate Adaptation and Environment Specialist

Bio | in

Caitlin Semmens
Research Assistant

Bio | in | rg

Andrew Thompson
Research Assistant

Bio  | in

Virginia Ng
Controller

Bio

Tanya Chen
Project Accountant

Bio

Andy Sin
Accounting Technician

Bio

Laurelle Santana
Executive Coordinator

Bio | in

Gayle Hadfield
Human Resources

Bio 


Contact staff at our head office in Vancouver (604-733-2996, info@essa.com) or our regional office in Ottawa (613-798-1300,international@essa.com)