Our Lab Hui
Lab Members

Matthew Christopher Ikaika Medeiros
Principal Investigator
Associate Professor
Pacific Biosciences Research Center
1993 East-West Rd. Honolulu, HI, 96822
(808) 956-8187
mcmedeir@hawaii.edu
Ph.D., Biology, 2013, University of Missouri-St. Louis
B.S., Zoology, 2006, University of Hawai‘i at Mānoa

Dr. Nicola Kriefall
Post-doctoral Researcher
Ph.D., Biology, 2022, Boston University
B.A., Biological Sciences, 2016, CUNY Hunter College
Project: Microbiome modulation of food web complexity
Post-doctoral Researcher
Ph.D., Biology, 2022, Boston University
B.A., Biological Sciences, 2016, CUNY Hunter College
Project: Microbiome modulation of food web complexity

Chasen Griffin
Ph.D. haumana
Zoology Graduate Program
B.S., Biology, 2013, Clayton State University
M.S. Biology, 2018, Georgia State University
Project: Environmental modulators of the capacity of mosquito populations to vector disease

Danya Weber
M.S. haumana
Zoology Graduate Program
B.S., Ecology and Evolutionary Biology, 2015, University of California, Santa Cruz
Project: Environmental sources of the mosquito microbiome.

Mamo (Lorraine) Kamamoaliʻiʻaimokuakamakeaweamahi Waianuhea
Ph.D. haumana/NSF GRFP fellow
Zoology Graduate Program
B.S., Biology, minors Chemistry and Fisheries and Wildlife, 2018, Oregon State University
Project: Landscape-scale mosquito control for avian conservation in Hawai‘i.
Ph.D. haumana/NSF GRFP fellow
Zoology Graduate Program
B.S., Biology, minors Chemistry and Fisheries and Wildlife, 2018, Oregon State University
Project: Landscape-scale mosquito control for avian conservation in Hawai‘i.
Lab Affiliates

Mehanaokalāikapōmaika‘i (Mehana) Leafchild
Undergraduate Researcher
Former REU Intern
Chaminade University (major: Environmental Studies)
Project: Symbiotic microbes and cold tolerance in Culex quinquefasciatus
Undergraduate Researcher
Former REU Intern
Chaminade University (major: Environmental Studies)
Project: Symbiotic microbes and cold tolerance in Culex quinquefasciatus

Caleb-Matthew Olaso
MARC Scholar/Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Microbiome assembly and lipidomics of Aedes albopictus and Culex quinquefasciatus
MARC Scholar/Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Microbiome assembly and lipidomics of Aedes albopictus and Culex quinquefasciatus

Randi Rollins
Ph.D. haumana (Advisor: Robert Cowie)
Zoology Graduate Program
BS., Zoology (major), Chemisty (minor), 2014, Weber State University
Project: Transmission dynamics and consequences of Angiostrongylus cantonensis infection in Hawai‘i
Randi is a graduate student working within our rat-borne zoonotic disease research group at UH-Mānoa.

Maria Steadmon
Ph.D. haumana (co-advised with Dr. Kiana Frank)
Oceanography Graduate Program
B.S. 2019, Marine Sciences, University of Hawai‘i at Hilo
Project: Environmental correlates of pathogenic Staphylococcus aureus among Hawaiian watersheds (ahupua‘a)

Nicole Yoneishi
InSTAR Manager
Pacific Biosciences Research Center
1993 East-West Rd. Honolulu, HI, 96822
(808) 956-2713
ny9@hawaii.edu
B.S., Biology, 2015, University of Hawai‘i at Hilo
Projects: Various projects associated with rat-borne, avian, and mosquito-borne disease, and the microbiotas of these systems. Nicole also maintains our mosquito colony and manages the day-to-day activity in the lab.
InSTAR Manager
Pacific Biosciences Research Center
1993 East-West Rd. Honolulu, HI, 96822
(808) 956-2713
ny9@hawaii.edu
B.S., Biology, 2015, University of Hawai‘i at Hilo
Projects: Various projects associated with rat-borne, avian, and mosquito-borne disease, and the microbiotas of these systems. Nicole also maintains our mosquito colony and manages the day-to-day activity in the lab.
Lab Alumni

Dr. Priscilla Seabourn
Ph.D. haumana
Ph.D. Entomology, 2021, University of Hawai‘i
B.S., Biology, 2011, University of Central Oklahoma
M.S. Tropical Medicine, 2014, John A. Burns School of Medicine, University of Hawai‘i
Project: The distribution of mosquitoes and their microbial symbionts in Hawai‘i.
Currently a research scientist with Amazon
Ph.D. haumana
Ph.D. Entomology, 2021, University of Hawai‘i
B.S., Biology, 2011, University of Central Oklahoma
M.S. Tropical Medicine, 2014, John A. Burns School of Medicine, University of Hawai‘i
Project: The distribution of mosquitoes and their microbial symbionts in Hawai‘i.
Currently a research scientist with Amazon

Abigail Bierwert
UHROP-funded Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Fungal symbionts of Aedes albopictus
UHROP-funded Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Fungal symbionts of Aedes albopictus

Kahiwahiwa Davis (left)
REU haumana (Hawai‘i)
Project: The influence of native Hawaiian and introduced plant detritus on the development of larval mosquitoes and the assembly of their microbiotas.
Gonzaga University BS: Biology and Psychology
Jeromayln "Joma" Santos (right)
REU haumana (Saipan)
Project: The diversity of Wolbachia strains in Culex quinquefasciatus on O‘ahu, Hawai‘i
University of Guam BS: Agriculture and Life Science
REU haumana (Hawai‘i)
Project: The influence of native Hawaiian and introduced plant detritus on the development of larval mosquitoes and the assembly of their microbiotas.
Gonzaga University BS: Biology and Psychology
Jeromayln "Joma" Santos (right)
REU haumana (Saipan)
Project: The diversity of Wolbachia strains in Culex quinquefasciatus on O‘ahu, Hawai‘i
University of Guam BS: Agriculture and Life Science

Kristen Feato
REU haumana (Hawai‘i)
Project: The microbiome of O‘ahu forest birds.

Ma. Vida Amor Echaluse
REU haumana (Saipan)
Project: Angiostrongylus cantonensis transmission in suburban environments across a rainfall gradient.
Currently a pre-med student and EXITO scholar at Portland State University

Joshua Schreiber
UHROP-funded Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Fungal symbionts of Aedes albopictus
Currently a mosquito technician for Maui Forest Bird Recovery
UHROP-funded Undergraduate Researcher
University of Hawai‘i at Mānoa (major: Biology)
Project: Fungal symbionts of Aedes albopictus
Currently a mosquito technician for Maui Forest Bird Recovery

Emily Ka‘anelamakamae Stone
former Post-Bacc Researcher and Undergraduate Honors haumana/REU Intern
Columbia University (major: Environmental Biology)
Project: Assembly of the Culex mosquito microbiome through interaction with environmental substrates
Currently an Environmental Scientist with Jacobs

Rachelle Legaspi Tom
B.A., Business, Seattle University
REU haumana (Hawai‘i)
Project: Mosquito Diversity within the Mānoa-Makīkī watersheds
Currently a natural resource manager with Paepae O He‘eia
Hoa hana
Dr. Robert Cowie, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Nicole Hynson, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Anthony Amend, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Amber Wright, Department of Biology, University of Hawai‘i at Mānoa
Dr. Floyd Reed, Department of Biology, University of Hawai‘i at Mānoa
Dr. Kiana Frank, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Nicole Hynson, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Anthony Amend, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa
Dr. Amber Wright, Department of Biology, University of Hawai‘i at Mānoa
Dr. Floyd Reed, Department of Biology, University of Hawai‘i at Mānoa
Dr. Kiana Frank, Pacific Biosciences Research Center, University of Hawai‘i at Mānoa