Subject Matter Expert Directory
Note: Default Directory listing is displayed in alphabetical order, based on last name
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Sarah Lemer, Ph.D.

Assistant Professor of Marine Invertebrate Genomics

location Office Location: ML 103
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.S., University of Aix-Marseille II (France)
  • M.S., Oceanography, Marine Biology, and Ecology, University of Aix-Marseille II (France)
  • Ph.D., Genetics, Biodiversity, and Evolution, Sorbonne University (France)


Dr. Sarah Lemer joined the UOG Marine Laboratory in 2016 as a senior research faculty of genomics working for the EPSCoR project. In March 2020, she became an assistant professor of invertebrate genomics and teaches the Marine Invertebrate Biology graduate course. She and her students focus their research on coral’s genetic responses to heat stress. 

She conducted two post-doctorates: one in French Polynesia at the French National Center for Scientific Research and the French Institute for the Sea, the second at Harvard University, Museum of Comparative Zoology - Department of Organismic and Evolutionary Biology.


  • Evolutionary biology
  • Genomics of marine invertebrates
  • Adaptation and population connectivity of coral-reef associated species in the context of fragmented, disturbed, and changing environments
  • Using genetic tools to estimate population and individual responses to natural or manmade disturbances, such as increased sea temperatures, habitat destruction, or aquaculture


Arline E. Leon Guerrero, M.Ed.

Associate Dean and Registrar / I Meyeng UOG-Certified Online Teacher

location Office Location: Office of Admissions & Records, Calvo Field House
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.A., Behavioral Science, Loretto Heights College (Colo.)
  • M.Ed., Guidance and Counseling, University of Guam
  • Graduate Certificate, Academic Advising, Kansas State University
  • I Meyeng UOG-Certified Online Teacher
Genevieve Leon Guerrero

Assistant Professor of Advanced Education & Research Services

location Office Location: SOE 210D
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • Ph.D., Education - Curriculum and Teaching, Northcentral University (Ariz.)
  • M.S., Public Health Administration, Cardinal Stritch University (Wisc.)
  • B.S., Marquette University (Wisc.)


Dr. Genevieve Leon Guerrero, PhD, brings over 20 years of experience in educational settings, ranging from K-20 classrooms to graduate program coordination. She enriches the Doctor of Education (EdD) program with her deep understanding of curriculum development and teaching. As a core faculty member, she specializes in integrating research with data-driven classroom interventions, focusing on improving educational practices through rigorous research and practical application in teacher preparatory programs.

Glenn A. Leon Guerrero, MBA

Director, Facilities Management & Services

location Office Location: FMS Building
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.S., Social Work, Saint Louis University
  • MBA, University of Hawaii


Glenn A. Leon Guerrero joined the University of Guam as director of facilities management and services in August 2020. He has headed several Government of Guam organizations, including the Election Commission, the Guam Economic Development Authority, the Port Authority of Guam, and most recently, the Department of Public Works. 

Leon Guerrero has also worked in numerous capacities within the private sector, serving as the Guam manager for PRI Gas Express in 1985, as ExxonMobil’s retail manager in 2000, and as Shell’s vice president of operations in 2010.

He also serves as associate pastor at St. Paul’s Assembly of God Church. 

John Leon Guerrero

PMT Superintendent

Mailing Address: UOG Station, Mangilao, Guam 96923

Research Associate I

location Office Location: Dean Circle, House #32, ORSP, Center for Island Sustainability
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • Ph.D., R.D., Human Nutrition, Colorado State University
  • M.S., Food Science and Human Nutrition, University of Hawaii
  • B.A., Biology, University of Guam
Victoria-Lola Leon Guerrero

Director of Publishing

Mailing Address: UOG Station, Mangilao, Guam 96923
Jefrey L. Libao, MLS

Assistant Professor of Systems and Networking Services

location Office Location: RFK 202
Mailing Address: UOG Station, Mangilao, Guam 96923
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Library Technology and Automation


Running and Basketball


  • B.A., Computer Science, University of Guam
  • MLS, The University of North Texas
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Program Coordinator, AmeriCorps UOG Volunteer Center

Mailing Address: UOG Station, Mangilao, Guam 96923
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