Current Lab Members

Graduate Students

Tommy Haensel

I am a PhD candidate in the Tropical Plant and Soil Sciences Department at UH Mānoa studying the formation of volcanic soils here in Hawai'i. My research looks at the evolution of soil from beginning to end, from fresh lava rock to highly weathered oxisols, using Hawai'i as a model system. This work has taken me all over the islands, from Hawai'i Island to Molokai, collecting samples from young to old and dry to wet soils. With these samples, I am building a matrix dataset which can help us look at the effects of climate, time and parent material on the pedogenesis of Hawai'i's soils and how they accumulate and deplete soil nutrients.


Based in Hilo on Hawai'i Island, I am working with Dr. Lincoln and other ICS lab members at the Komohana Research Extension Center where we are conducting various soil analyses, investigating the connection between traditional Hawaiian agriculture systems and the natural soil fertility of the land, and having pau hana volleyball matches when the work gets tough. Feel free to email me any time: thaensel@hawaii.edu.  Aloha!

Dolly Autufuga

Talofa! I'm a PhD student from Samoa working on ulu quality and postharvest. The goal is to improve harvest and postharvest handling practices that can prolong ulu shelf life and in turn improve profit for breadfruit farms and farmers. I am in the field every two weeks or weekly with other ICS lab members to collect data, harvesting, pruning, fertilizing, and other tasks. I also work closely with USDA-PBARC in Hilo to do ulu nutrient analysis, fruit edible coating and near infrared spectroscopy (NIR) analysis.  

If you are interested in knowing more on ʻulu and want to come out with us on a field day, email me at: autufuga@hawaii.edu. Faafetai!

Rami Kayali

I'm a Master's student in the CTHAR TPSS Indigenous Cropping Systems Lab researching 'awa nutrient demands and hydroponic growth potential. I currently own and operate several kava ('awa) establishments in the Bay Area and became curious about the nutrient demands and potential capability of growing 'awa in hydroponics. As a root crop with a long growth period, it certainly presents unique challenges to the traditional hydroponics set up. Therefore, my current study focuses on the feasibility of an in-house design for hydroponics that takes these challenges into account. 

I am also researching more of the general characteristics of 'awa and trying to shed a little more scientific light on the plethora of ancient wisdom and reverence for this intriguing plant. In my spare time, I enjoy drinking plenty of 'awa coupled with my love of freediving the beautiful coasts here and piloting the short flights between the islands.

Saori Ogura

I am a PhD Candidate in Rehabilitation Sciences at The University of British Columbia, Canada. I have been working with Indigenous and local communities in the Indian Himalaya, Zimbabwe, and Japan, using art to revitalize their climate resilient and culturally important small grains cultivation. My current research involves understanding the meanings of the cultivation to the community members, including food security, and wellbeing for the people and the land. As an artist, I incorporate photography, drawings, and documentary films as part of my research. I look forward to exploring biocultural diversity with the lab!

Alex Curtis

I am currently attending The University of Hawaii Hilo in for my Bachelor in Tropical Agroecology. I am a research assistant at the indigenous Cropping Systems Laboratory helping with data collection and photo analysis for a study on Ulu postharvest and processing. Originally from New Mexico I came to Hawaii to complete my undergraduate degree because of the year-round growing season and the chance to learn about and grow a wider variety of plants. I plan to use what I learn in school to contribute to increasing the resilience and sustainability of agriculture and to help conserve the unique biodiversity in Hawaii.

Indrajit Gunasekara

Aloha! My name is Indrajit Kumara Samarasingha Gunasekara and I am native to Southern Sri Lanka. I come from an unbroken line of Indigenous connection (over 3,000 years) to the use, cultivation, and spiritual function of the coconut.  I co-founded the Niu Now project where my love and knowledge for the niu activates and nourishes a cultural agroforestry movement dedicated to Heritage-Based Community Coconut Gene Banking of Hawaiian coconut diversity and to the growing of uluniu – coconut grove system – throughout Hawaiʻi to keep Hawaiian coconut genetic diversity alive and appreciated.  I help to safeguard endangered niu varieties to activate cultural practices of food security, ecological conservation along with niu arts and knowledge to help Hawaiʻi recognize this vital and ancient ecological resource.  

I hold a B.S in Education from BYUH, along with a Graduate Certificate in Conflict Resolution from UH Mānoa.  Recently I completed an MS in Tropical Plants and Soil Science from the University of Hawai‘i at Mānoa focusing on Indigenous Hawaiian coconut varieties. 

Prior to coming to Hawaiʻi 20 years ago, I managed and directed International educational, business, peace-building, and donor-funded social development projects within multinational teams.

Currently, I serve as a Financial Aid Officer at UH West O‘ahu where I also co-direct the Uluniu Project, encouraging local food security practices through Indigenous farming systems and methods. 

Feel free to reach out to me at indrajit@hawaii.edu. Mahalo!


Research Assistants and Technicians

Christian Buehler

Christian Buehler has managed the ICS Labs experimental greenhouse at the Magoon Research Station in Manoa, Hawai'i for the past four years. During this time he has overseen projects on nitrogen fixation in sugarcane, the use of traditional mulches in kalo cultivation, breadfruit nutrient deficiency trials, and has maintained a breadfruit propagation program that has produced and distributed over 4,000 breadfruit trees in Hawai'i!

Malia Benz-Marrs

       Aloha nui kākou! ‘O au nō ‘o Malia Benz-Marrs. He pua nō au hānai ‘ia ma Kahikinui ma ka mokupuni ‘o Maui. I am a Ka Haka ‘Ula o Ke’elikōlani graduate currently assisting with the propagation of various ‘ulu varieties at the Komohana Research Extension Center in Hilo. It has been fascinating to be able to see ‘ulu growth using different propagation methods. Every time I see roots, I think of how many people will be fed one day. “I ola ‘oukou, i ola mākou nei.”

       I have always had my hands in a māla, with the intention of securing something for the future generations, even if it’s ‘ike, or knowledge, that I will pass on.

Kahiau Kiyuna

Aloha kākou! ‘O Kahiau ko’u inoa. I am currently a student at Hawai‘i Community College studying Tropical Ecology and Ahupua‘a Management. Soon, I hope to transfer to UH Hilo and continue learning more about Traditional Hawaiian agriculture and indigenous crops. Currently, I work as the lab pack mule, maintaining our ‘ulu orchards and germplasms while also getting some experience in the lab analyzing soil samples.