Todd Witcher to Retire From Discover Life in America
The executive director will step down from the Knoxville-based organization at the end of 2026.
Updated on Oct. 23, 2026 in National Parks
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Todd Witcher announced he will retire as the executive director of Discover Life in America on December 31, 2026. The organization is currently conducting a search for his successor to lead its ongoing biological research in the Great Smoky Mountains.
Why it matters
Witcher has led the nonprofit since 2007, overseeing efforts to document the extensive biodiversity within the national park. His departure marks a transition point for the small team as they continue their mission to catalog regional species.
The All Taxa Biodiversity Inventory has recorded 11,527 new species for Great Smoky Mountains National Park since 1998, bringing the total known species count to 22,977. Discover Life in America currently operates with a staff of four members.
The players
Todd Witcher
He has served as the executive director of Discover Life in America since 2007.
Discover Life in America
This Knoxville-based nonprofit organization is dedicated to documenting the biodiversity of the Great Smoky Mountains.
The details
Discover Life in America manages the All Taxa Biodiversity Inventory, a massive project aimed at documenting every living organism in the Great Smoky Mountains. The group utilizes the iNaturalist app to involve the public in gathering biological data and holds its primary annual fundraiser, Fireflies at Norton Creek, in June.
Timeline
The All Taxa Biodiversity Inventory began on April 22, 1998.
Todd Witcher became executive director of the organization in 2007.
The Fireflies at Norton Creek fundraiser occurs each June.
Witcher is scheduled to retire on December 31, 2026.
Travel Outlook
The leadership change at Discover Life in America highlights the long-term administrative challenges facing the All Taxa Biodiversity Inventory as it continues its decades-long documentation of wildlife. This transition represents a shift in institutional oversight for one of the most comprehensive biological surveys in a U.S. national park.
Park visitors interested in supporting local conservation can continue to use the iNaturalist app to contribute data during their trips. Those planning to attend the Fireflies at Norton Creek fundraiser should prepare for the event schedule during the month of June.
The takeaway
The retirement of a long-standing director is an opportunity for organizations to review their operational goals and engagement strategies. Volunteers and researchers should monitor the group's website for updates on leadership and upcoming field opportunities.
Further reading
For more information on regional biological research, visit the National Parks section.
Source note: This article includes information reported by Knoxville News Sentinel.
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