Our Staff

About Us

Our team of carefully curated professionals are outstanding in their respective fields and carry professional practice in Alberta, British Columbia, and Saskatchewan as Professional Agrologists and Biologists. Our office is based in Cremona, AB, with staff residing in Edmonton, Calgary, Pincher Creek, Fort St. John, and Cranbrook.

Steven Tannas; PhD., P.Ag., P.Biol.

President; Senior Restoration and Vegetation Ecologist

Dr. Steven Tannas is a Senior Vegetation Ecologist, Reclamation Specialist, wetland scientist, and dual-registered Professional Agrologist in Alberta and B.C. Steven specializes in vegetation ecology with work spanning many practice areas. Steven is an experienced plant taxonomist able to spot ID over 1000 species of plants. Other areas of practice and technical knowledge include restoration ecology, agrology, bioengineering, wetlands, and native plant propagation.Steven’s primary focus areas span the Western Canadian ecosystems, including Alberta, British Columbia, Saskatchewan, Manitoba, Yukon Territory, and Northwest Territory. Steven has extensive experience working with various energy sectors, including oil and gas, electrical grids, and mining, as well as work spanning the renewable and agricultural sectors. Steven is experienced in working with Federal, Provincial and Municipal levels of government in varying capacities. Steven is on the AIA Registration Committee, and the Old’s College Industrial Advisory Committee and has acted as a supervisor for graduate-level students. In his spare time, Steven enjoys wood carving, building and playing string instruments, timber framing, reading, and being outdoors.

Eileen Tannas; BSc.

Vice President: Senior Plant Propagation Specialist

Eileen is a plant propagation specialist, taxonomist, and environmental professional with extensive greenhouse experience having worked with Eastern Slopes Rangeland Seeds Ltd. over the past decade. Eileen's expertise has focused on plant identification, including weeds, rare species, and common native species across Alberta. Eileen has conducted rare species and vegetation surveys within the following boreal, upper foothills, lower foothills, montane, subalpine, foothills fescue, northern fescue, aspen parkland, and dry mixedgrass natural subregions. Eileen's experience in boreal ecosystems is extensive.Eileen is highly skilled in business management and has a degree in math and finance, leading the finance and administration team. Eileen is the Health and Safety Manager and ensures that our team upholds the highest standards possible. Eileen brings strong administration and project management skills to every project we do.

Rachel Noble-Pattison, M.E.Des., EP., RT.Ag.

Senior Environmental Scientist; Discipline Lead Biophysical

Rachel is a senior environmental scientist, based in Calgary, Alberta, registered with the Alberta Institute of Agrologists (RTAg) and the Environmental Careers Organization of Canada (EP). She has over sixteen years of environmental consulting and industry experience in western Canada and abroad working on environmental assessments, mine closure and reclamation, regulatory applications and compliance assurance, and stakeholder engagement, in sectors including renewable energy, tourism and recreation, in-situ and mineable oilsands, municipal infrastructure, and transportation.The varied and multi-scalar natural resource projects she has tackled over her career have contributed to her unique ability to analyze complex environmental and social issues, distill relevant information, synthesize that information, and develop tailored approaches which address regulatory and business requirements, while integrating and respecting diverse stakeholder values. Her professional experience, combined with her academic background in physical geography and environmental design gives her the unique ability to assess information from the broad spectrum of environmental, social, economic, and cultural aspects of a given project or challenge – the “Big Picture”. She approaches her work from a mindset of continuous improvement, adaptive management and compassionate leadership – critically examining problems and processes, and working with teams to develop more efficient solutions, while respecting and integrating team members’ unique strengths and perspectives.In her spare time, Rachel enjoys exploring Calgary’s various off-leash dog parks and nature trails with her two dogs, assisting her son in creating elaborate Minecraft-themed crafts, and watching British police procedurals on BritBox.

Hilary Baker; BSc., P.Ag., P.Biol.

Senior Ecologist & Rangeland Specialist; Discipline Lead Range and Ecology

Hilary is a senior vegetation ecologist and rangeland practitioner based in Cranbrook, B.C. Hilary is a dual-registered Professional Agrologist in Alberta and B.C. Her expertise lies in multidisciplinary practices based on ecological, environmental, rangeland, agronomic, and socio-economic principles. Hilary has contributed to and led teams on a variety of projects from small to large-scale environmental assessments, working with a diverse clientele in both the public and private sectors, including industry, oil and gas, mining, agriculture, the not-for-profit, emergency management, and with growers/producers/ranchers. Hilary's background and passions are firmly rooted in ecology, and she excels as a big systems thinker, using science as a basis for making land management decisions. Hilary has extensive experience in rangeland management, having previously worked as a Rangeland Specialist with the Government of Alberta. Hilary is well-versed in plant taxonomy, ecological classification, terrestrial ecosystem mapping, post-fire monitoring, ecosystem monitoring, gap analysis, forage and browse sampling, long-term monitoring, program design, program management, technical reporting, and technical publications. Hilary splits her spare time between team roping, fly fishing, backcountry skiing, and scouring the Kootenays for wildflowers.

Carrie Mabin; BSc, RT(Ag)

Senior Environmental Scientist; Discipline Lead Reclamation

Carrie is an experienced land reclamation practitioner and Registered Technologist in Agrology. Her background is a blend of technical skills, fieldwork and practical instruction. Carrie has direct experience with land reclamation, remediation, environmental site assessments, technical writing, project management, leadership, presentation, instructing and mentoring, as well as municipal planning and development.
Carrie has managed small and large client portfolios that included reclamation, remediation, vegetation management, and DSAs, culminating in obtaining Land Reclamation Certificates. Her project management expertise facilitates these key elements with a focus on timeline and budgetary constraints. She is an adept communicator, allowing her to effectively coordinate with diverse groups of stakeholders including clients, project team members, regulators and landowners.

Kayla Livingston; BSc, P.Ag., P. Biol.

Senior Restoration Ecologist; Mining and Research Team Lead

Kayla is an experienced land reclamation practitioner and a dual registered P.Ag. and P.Biol., R.P.Bio., in Alberta and British Columbia. Her focused work has been in reclamation including detailed site assessments. She has also completed various other tasks such as wetland delineations, noxious weed assessments, environmental monitoring, pre-disturbance site assessments, detailed site assessments, stream assessments, and wildlife assessments.

Kayla’s diverse work experience has built her portfolio in various ars and disciplines such as mining, pipeline, construction, forestry, and oil and gas. She has led and managed client Dormant Site Programs in British Columbia and has executed various programs in Stage 2 drilling, reclamation, and site assessments. She successfully mentored Junior and Intermediate staff in conducting field programs, such as Cultivated Detailed Site Assessments and other field-related training. In addition, Kayla is an organized, driven, disciplined, and motivated leader.

Kayla is a competitive powerlifter who has competed internationally and spends most of her spare time in the gym. Kayla also enjoys camping, hiking, and fly fishing.

Cassandra Schroeder; M.Ag, P.Ag.

Environmental Scientist; Discipline Lead Agrivoltaics

Cassandra is a Professional Agrologist with eight years of experience in agriculture and natural resource management. She specializes in range management, with competence in various vegetation surveys and management plans, including invasive plant surveys and range planning. Cassandra is an expert in range health assessments, having taught range health in Saskatchewan, and is the President of the Prairie Parkland Chapter of the Society for Range Management. She studied agriculture at the University of Saskatchewan and later returned to school and completed a master’s in agriculture from Colorado State University, specializing in integrated resource management.

Cassandra applies a wholesome understanding of the agriculture industry and ecological principles to her work. Her background in agriculture includes crop production, livestock management, and ecosystem management. Cassandra’s core area of practice is range management, which intersects with diverse project work. She has safely led field teams on various projects and brings group facilitation skills to project discussions. In addition to her professional training and strong commitment to professional development, Cassandra has also learned from forage specialists, livestock specialists, plant taxonomists, biologists, and a great network of professional associates.

Cassandra enjoys travelling, hiking, beekeeping, fishing, and campfires.

Ashley Easton; BSc., P.Ag

Senior Environmental Scientist; Restoration

Ashley is a Professional Agrologist based in Calgary, specialising in soil, vegetation, reclamation and revegetation. She has been working in the reclamation industry for over ten years. She is highly experienced in environmental site assessment [ESA], including Phase 1/I [as per AEP and CSA standards], 2 [intrusive sampling] and 3 [remediation], spill response, site reclamation, revegetation, and reclamation certificate applications [RCAs]. Her technical skills also include soil and vegetation inventory, assessment and classification, including weed, introduced and native plant species identification by both spot and keying methods and wetland, rangeland and riparian assessment. She is also highly experienced in project management of varying types, sizes and complexities of projects, development and tracking of budgets, technical document preparation and document review, and leading and managing staff teams to complete project objectives. Ashley has instructed various courses and mentored and trained numerous junior and intermediate environmental scientists for technical, project management, leadership and teamwork skills. Ashley’s work experience has dominantly been focused within natural areas, urban, oil and gas [upstream and midstream], and mining sectors in central and southern Alberta and south-central Saskatchewan. While Ashley has worked in nearly all types of ecosystems, she has a strong love for grasslands.

Ashley enjoys giving back to the industry and currently volunteers as a Director for the Canadian Land Reclamation Association - Alberta Chapter and as a Technical Advisory Committee member for the Grassland Restoration Forum. In her time away from work, she enjoys spending time with her growing family going on adventures, getting together with friends for some laughs and having the odd quiet moment to get into a book or quilting project.

Brian Yakiwchuk; MGEM, CERP

Geospatial Analyst & Ecologist

Brian is a part-time restoration ecologist and spatial analyst based in Alberta. With nearly a decade of experience in government, he brings a grounded, science-informed approach to restoration problems —particularly across Alberta’s montane and subalpine landscapes.

Brian has led full-cycle ecological restoration and long-term monitoring projects, drawing on a strong foundation in field ecology. He has been involved in species-at-risk recovery (including whitebark and limber pine), ecotypic seed collection, rangeland/forest health monitoring, fire severity assessment, post-fire vegetation recovery, wildfire risk reduction and restoration, and—of course—effectively managing invasive species in all those settings.

Over time, he has gradually shifted his focus toward improving data mobilization to support these same goals. He’s especially interested in bridging the gap between field-based insight and scalable, data-driven solutions that enable practical, informed decision-making. Automating workflows and shaving hours off repetitive tasks brings him far too much satisfaction.

When he’s not mapping vegetation or digging into data, Brian divides his free time between biking, skiing, and fixing whatever he broke while biking or skiing. He has a well-developed appreciation for high-quality gear, duct tape, and physiotherapy.

Darin Sherritt; MSc., P.Ag., P.Biol.

Senior Environmental Scientist; Mining and Research

Darin is a Professional Agrologist based in the Edmonton/Wainwright area and specializes in vegetation, reclamation, and revegetation. Darin has been working in the reclamation industry since 2012 and is experienced in site reclamation, revegetation, ecosite and wetland classification, and various aspects of range management. Darin's technical skills include vegetation inventories, assessment, and classification. Darin is highly skilled in plant identification of weeds, introduced, and native plant species in both spot and keying methods. A U of A Range Team Alumni, Darin is our resident grass specialist. Darin instructs various audiences at the annual plant ID course and teaches seed mix design. Darin's work experience has predominantly focused within natural areas, oil and gas (upstream and midstream), and mining sectors throughout Alberta.Darin enjoys dabbling in collecting various antiques, building his International Harvester collection, billiards, and hunting.

Myra Juckers; MSc., P.Ag.

Senior Ecologist; Biophysical

Myra is a Professional Agrologist with the British Columbia Institute of Agrologists. She has over 10 years experience in the environmental field, working in consulting, academia, and with a First Nation. She has been involved in open forest and grassland enhancement in southeastern British Columbia, invasive plant management and research, and project coordination and management.

Myra has coordinated and overseen all phases of ecological projects, including: project scoping, budget development and management, preparing funding proposals, developing requests for proposals to secure consultants and contractors, hiring and coordinating consultants and contractors, administering contracts, presenting project results to stakeholders, and preparing reports for funders.

Myra has also completed field assessments, data collection, entry, and quality assurance/control and conducted technical writing, report reviewing, and management of ecological data. She has collaborated with various stakeholders, including First Nations, Consultants, Contractors, Government, Industry, and Non-Profit. Myra is a self-starter who excels in working independently and collaboratively in both the office and the field, striving to successfully initiate, implement, and manage ecological projects.

Outside of work, Myra enjoys taking in the sunlight through canoeing and kayaking, hiking, searching for wildflowers, and spending time with friends and family outdoors.

Ryan Larson; BSc, R.P.F

Intermediate Forester; Biophysical

Ryan is an experienced Forester and Registered Professional Forester with the AAFMP, based in Calgary. He has primarily worked in Silviculture conducting reforestation and afforestation projects in Alberta and British Columbia. His extensive experience includes supervising many different tree planting programs, including programs in excess of five million trees being planted. He also has experience in setting up forestry trials, conducting forest health assessments, ecosite classification, and stream assessments.

Ryan spends most of his spare time hiking, mountain biking, camping, searching for owls, or playing rec sports.

Katherine Johnson; MSc Candidate, A.I.T.,

Rangeland Scientist; Range and Ecology

Katherine is an environmental scientist based in Central Alberta and an Agrologist in Training. Katherine is a U of A Range Team Alumni with outstanding placings at the 75th Annual Society for Range Management Annual Meeting. Katherine placed 1st in the Undergraduate Range Management Exam (URME) and 1st in the Combined for plant ID and URME. Katherine is starting a Master of Science program with Edward Bork at the University of Alberta in winter of 2025, and her research supports ongoing initiatives in combatting invasive species in the East Kootenay's of British Columbia. One part of her study is investigating St. John's wort and sulfur cinquefoils' response to fire and tools that can mitigate its spread in applying ecosystem restoration treatment to NDT4 ecosystems. The other part of her study is investigating the response of pre-emergent herbicide on annual bromes in degraded rangelands, as well as it's interaction with fire treatment. In her spare time, Katherine enjoys horseback riding, reading, and spending time outdoors.

Rowan Rampton, MSc

Technical Ecologist; Range and Ecology

Rowan is a junior ecologist based in Calgary and currently in the process of becoming a professional biologist. Rowan’s background includes several research assistant positions, such as pest trapping trials and pollination studies (from blueberry farms to recovering wildfire zones), as well as an MSc focused on the floral resources and pollination of camas meadows in the Central Kootenay region of British Columbia. Rowan also has experience in riparian ecology, plus experience in outreach, focusing either on riparian ecosystems or plant and pollinator ecology. From these experiences, Rowan has developed expertise in plant identification, data visualisation, and statistical analysis, plus gained experience working with ecological topics across a variety of ecosystems.

He has also spent large amounts of his free time over the past 5 summers using macro photography to identify plants and pollinators while exploring the backcountry of BC and Alberta. More generally, Rowan enjoys hiking, backpacking, and gardening, plus repairing and riding old motorcycles and bicycles.

Chad Koenig

Junior Environmental Scientist; Reclamation

Chad Koenig is an environmental scientist based in Edmonton, Alberta. He has over a decade of hands-on experience in reclamation projects, specializing in tree planting and running planting projects for former mine sites and well sites across Alberta and BC. Chad takes immense pride in reclamation work. His approach is informed by a strong aptitude for fieldwork, allowing him to address unexpected challenges swiftly with confidence and precision. He is detail-oriented in all areas of his work, from running planting projects to conducting vegetation surveys, seed collection, and herbicide application.

Chad’s deep passion for the outdoors extends into his personal time, during which he enjoys hiking, camping, and getting outside with his kids. He also enjoys reading and music, particularly listening to his favourite records and playing banjo and guitar.

Mikaela Goddard; Ba.

Mikaela is a junior environmental scientist based in Central Alberta. She is a recent graduate of the Olds College Environmental Science diploma with a major in Land Reclamation and Remediation. She received the CLRA Outstanding Student Award in March of 2025 for her dedication to excellence and work as an academic tutor for soil science, water quality, and horticulture classes at Olds College.

Mikaela has experience identifying and monitoring vegetation on wellsites, and pipeline right of ways in compliance with federal and provincial regulations. Her experience also includes herbicide application and the development of vegetation management work plans. She takes pride in her meticulous attention to detail and applies it to all aspects of her life, whether it be field work or report writing.

Mikaela spends most of her spare time hiking, camping, paddleboarding, reading and spending time with friends and family.

Sarah Johnson; BSc., B.I.T.

Junior Biologist; Biophysical

Sarah is an environmental scientist and a biologist in training. She graduated from the University of Alberta in 2025 with a degree in range management and was a member of the 2024 and 2025 U of A Range Teams. She achieved a second place overall finish in plant ID and the Undergraduate Range Management Exam at the 2025 Society for Range Management Annual Meeting. She worked in rangeland research in Saskatchewan during her university career, studying the impacts of different grazing systems on soil carbon sequestration and grassland vegetation composition. Sarah works in plant identification, range health assessments, and wetland assessments.

Outside of work, Sarah enjoys reading, writing, sketching, and baking, and she loves to go hiking out in the muskeg with her dog.

Josh Bergen; MSc

Junior Agronomist; Agrivoltaics

Josh is a junior environmental scientist at TCS. He has extensive industry experience in agronomic research, having conducted pesticide efficacy trials on greenhouse and field crops and Good Laboratory Practice (GLP) trials to establish pesticide residue levels for regulatory submissions. Josh has also managed international agricultural projects in South and West Africa in the areas of legume intercropping and bio-pesticide development. This has provided him with experience in the full scope of agronomic research, from trial design and site layout to data collection, analysis and report writing.

Josh recently completed an M.Sc. in sustainable agriculture focusing, among other things, on livestock diversification, crop-livestock integration, ecosystem services and the socio-cultural dynamics of agricultural production. His academic background bridges the natural and social sciences with the result that his work is informed by both the biophysical and broader social-ecological interactions within agroecological landscapes.

Josh spends much of his spare time learning about vegetable gardening and raising small livestock. He also enjoys spending time with his two young daughters.

Brooklyn Clay; BSc., B.I.T.

Junior Ecologist; Mining and Research

Brooklyn is a Junior Ecologist and Biologist in Training (BIT) with expertise in ecological and mining disciplines. She has professional experience in field and office roles, including wetland delineation, wildlife surveys, rare plant assessments, and supporting project managers on mining projects with field logistics and project coordination. Proficient in QGIS and ArcGIS Pro, Brooklyn has completed advanced coursework in wetland ecology, hydrology, biogeochemistry, wildlife biodiversity, and fisheries. She has contributed to regulatory deliverables such as Wetland Impact Assessment Inspection Reports, Environmental Risk Reports, and Preliminary Natural Site Assessments, demonstrating a strong understanding of environmental assessments and compliance. With a foundation in ecology and specialized field training, Brooklyn brings technical expertise, organizational skills, and a collaborative, results-driven approach to every project.

Clare Tannas; BSc.

Senior Rangeland Agrologist

Clare is a semi-retired Rangeland Agrologist with over 40 years of field experience. Initially working for ASRD Public Lands Division, he has extensive experience in rangeland inventories, air photo interpretation, plant community mapping, rare species management, reclamation monitoring, and weed management. Over his career, Clare has surveyed over one million acres of land and won the Alberta Emerald Award with Kathy Tannas for his environmental commitment. Clare was a pivotal contributor to publications on reclamation and to the "Common Plants of The Western Rangelands" publication by Kathy Tannas.