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Inspire Session

Session: : Remote Sensing of Plant Biodiversity, Physiological Stress and Ecosystem Function in a Rapidly Changing World

INS 16-1 - Mechanistic links between physiology and spectra enable pre-visual detection and distinction of Oak Wilt and drought

Wednesday, August 9, 2023

3:30 PM – 5:00 PM PDT

Location: 254

Presenting Author(s)

GS

Gerard Sapes

Research Scientist
University of Florida
Gainesville, Florida, United States

Co-author(s)

GS

Gerard Sapes

Research Scientist
University of Florida
Gainesville, Florida, United States
LS

Lucy Schroeder

University of Minnesota
JG

J. Antonio Guzman Q.

Postdoctoral Associate
University of Minnesota, Minnesota, United States
CL

Cathleen N. Lapadat, B.S.

Lab Manager
University of Minnesota
IC

Isaiah Clark

University of Minnesota
AS

Allison Scott

University of Minnesota
JJ

Jennifer Juzwik

University of Minnesota
RM

Rebecca A. Montgomery

Professor
University of Minnesota
St. Paul, Minnesota, United States
JC

Jeannine M. Cavender-Bares, Ph.D.

Professor
Department of Ecology, Evolution & Behavior, University of Minnesota
Saint Paul, Minnesota, United States

Tree mortality due to global change —including range expansion of invasive pests and pathogens— is one of the greatest threats to forest ecosystems. Early detection of tree decline drivers -especially of biotic agents- is of key interest as it can enable quick management action. We combined classic ecophysiological measurements with leaf, canopy, and drone spectra in Oak Wilt (Bretziella fagacearum) infected and drought stressed red oak species to generate a mechanistic link between physiological processes and plant spectra. We identified physiological processes with pre-visual detection capabilities that can be predicted from spectra and differentiate Oak Wilt from drought.