Dr. Jinelle Sperry, a wildlife biologist with the U.S. Army Engineer Research and Development Center (ERDC), Construction Engineering Research Laboratory (CERL)’s Threatened and Endangered Species program, explains methods for endangered species fruit trait measurements to collaborators and field technicians in Oahu, Hawaii, March 29, 2019. The collaborative efforts of the ERDC-CERL team helped establish the Department of Defense’s ability to properly train on military installations and balance ecosystem health. (U.S. Army Corps of Engineers photo)