Ecological Services

ERG’s Ecosystem Services Team develops and evaluates strategies for ecosystem protection and restoration. Our dedicated group of expert ecologists, economists, and scientists assesses ecosystem health, devises indicators to measure ecosystem status and trends, estimates the costs and benefits of ecosystem restoration, evaluates socioeconomic tradeoffs between management approaches, and performs ecosystem services valuations. With a focus on aquatic and coastal ecosystems, our field services include surveys, sampling design, jurisdictional determinations, ecosystem condition assessment, data analysis, and managing laboratory support. Our interdisciplinary team applies efficient and effective approaches that provide clients with a solid scientific foundation to support sustainable ecosystem management strategies, policies, and practices.

Watershed Assessments and Aquatic Surveys
  • EPA National Rivers and Streams Assessment field sampling protocols and measurements
    • Water chemistry
    • Periphyton
    • Benthic macroinvertebrates
    • Stream discharge
    • Physical habitat
    • Fecal indicators (enterococci)
    • Fish assemblage
    • Fish tissue sampling and analysis
  • EPA National Wetlands Condition Assessment field sampling protocols and measurements
    • Water chemistry
    • Botanical surveys
    • Soils analysis
    • Hydrologic indicators
    • Physical habitat
Freshwater Fisheries and Aquatic Biomonitoring Surveys
  • Fish weir design and salmon enumeration studies
  • Fish tracking (radio telemetry and PIT tagging)
  • MesoHABSIM aquatic habitat mapping
  • Baseline aquatic biomonitoring surveys
Field Sampling Design and Execution
  • Methods and SOP development
  • Sampling design
  • Logistical support
  • Pre-survey planning
  • Database development and management
  • ArcGIS mapping and analysis
  • Statistical analysis
  • Laboratory acquisition and oversight
Wetlands and Jurisdictional Waters
  • Wetland restoration/mitigation
  • Jurisdictional determinations
    • Physical, chemical, biological indicators
    • 100-year floodplain analysis
    • Ordinary high water; bed and bank identification
Threatened and Endangered Species Surveys (Mammals, Fish)
  • USFWS and state permit applications
  • Sampling design
  • Monitoring and assessment
  • Statistical analysis
  • Reporting


Service Area Leads

Tegan Churcher Hoffmann

Sustainable resource management and conservation is about people, communities, and social institutions and their interactions with each other and changing environmental conditions. I am passionate about working with people and organizations to help them design and implement durable, effective solutions that create meaningful positive outcomes.

Tegan Churcher Hoffmann

Doug Jackson

The science of ecology reveals that our planet is rich with interacting networks of organisms and processes that often behave in counterintuitive ways. The challenge and opportunity of our time is to develop and harness new technologies—scientific, economic, political, cultural—that help us to recognize, understand, and embrace the world’s complexity.

Doug Jackson

Kelsey Jacobsen

Synthesizing multifaceted ideas into focused, streamlined products is the work I enjoy most. For strategic planning, evaluations, and more, we gather information from many sources, including interviews, interactive meetings, and the Web. The value we provide is to weave that information into a crisp, useable package to help move our clients forward, which ultimately benefits our oceans, coasts, and natural resources.

Kelsey Jacobsen

Kort Kirkeby

As a child, I spent much of my time outdoors observing, collecting, and understanding the natural world. This early passion led me to study biology, communications, and environmental engineering and ultimately integrate them into my career in aquatic ecosystems. I have had great opportunities to work with outstanding people and manage large-scale projects across the U.S., and I am passionate about delivering high-quality work products that meet and exceed expectations.

Kortney Kirkeby

Jennifer Lam

The most rewarding part of my work is being able to help our clients from behind the scenes, reflect on their impact, and find ways to become more effective and successful at conserving and protecting the world we live in.

Jennifer Lam

Arleen O'Donnell

I cherish the connection with nature I feel from the strength of the ocean, the run of a river, the serenity of a lake, the intensity of estuaries, and the magic of vernal pools. It’s from this sense of appreciation that I apply my knowledge, experience, and passion to protect and restore the ecological integrity of water resources.

Arleen O'Donnell

Diana Pietri

Designing solutions for sustainable environmental conservation and management efforts is a constantly challenging, yet rewarding, endeavor. I love collaborating closely with our clients to discover and develop strategies to promote environmental sustainability—including defining priorities for grant-making and identifying innovative methods such as best practices for coastal and ocean planning.

Diana Pietri