Dryad Biological Consulting, LLC is a senior-led environmental consulting firm providing expert biological, botanical, wildlife, and regulatory compliance services across the western and central United States. We specialize in delivering practical, defensible solutions for complex projects that require technical rigor, regulatory fluency, and experienced judgement.
The firm is led by Yancey Bissonnette, Senior Botanist and Biologist, a seasoned environmental professional with more than 30 years of combined experience in the biological and geotechnical consulting industries. Mr. Bissonnette has provided consulting services throughout California, Nevada, Arizona, New Mexico, Utah, Oregon, Texas, and surrounding areas. Projects supporting renewable energy, transmission and generation, oil and gas, Municipal infrastructure, and private development.
Our Team
Senior Botanist and Biologist
Yancey Bissonnette
Mr. Bissonnette brings to Dryad Biological extensive expertise in rare plant and botanical surveys, state and federally listed wildlife surveys, wetland delineations, and environmental permitting and compliance. His experience includes CEQA and NEPA documentation, Endangered Species Act consultations (Sections 7 and 10), Clean Water Act sections 401 and 404 permitting, biological assessments, habitat and impact analyses, mitigation planning, and construction monitoring.
He has successfully led interdisciplinary teams on both small and large-scale projects, with strong emphasis on safety, quality, and regulatory defensibility.
Managing Member
Amy Bissonnette
As Managing Member Mrs. Bissonnette plays a key role in the firm’s operations and client management. She oversees business management, administrative coordination, and client communications. Her role allows the firm to maintain a high level of efficiency, responsiveness, and consistent attention to detail. Creating an environment of organizational clarity supporting Mr. Bissonnette’s performance of technically complex environmental work.
Dryad Biological Consulting Operates with a hands-on, senior-expert model, rather than relying on large teams of junior staff, projects are led by an experienced professional, with specialized subcontractors engaged selectively when appropriate. This approach provides technical continuity, accountability, and high-quality deliverables from project initiation through completion.
At Dryad Biological Consulting we value integrity, precision, and respect for our clients, regulatory agencies, and the natural resources entrusted to our care. Our goal is to support successful project outcomes while meeting regulatory requirements and protecting sensitive environmental resources.
Phone: 559-240-7727 or 480-695-4427