Lab Members

An BuiAn Bui
Graduate Student
an.bui ‘at’ lifesci.ucsb.edu

Website / Google Scholar

An’s research lies at the intersection of community and theoretical ecology. She uses empirical field methods to parameterize models describing the effects of interacting environmental stressors on community composition. With her current project, she asks how land use and aridity affect functional communities of ectomycorrizal fungi and the strength of their relationships with oak (Quercus spp.) tree hosts at Tejon Ranch in the Tehachapi mountains of California. An graduated from UC Santa Barbara in 2015 with dual degrees in Ecology and Evolution and English Literature, took time off doing as much field work as she could, and joined the lab in 2018. She relishes being asked for her help identifying birds, and in her spare time dives, knits, and kisses dogs on the forehead.

Sevan at YosemiteSevan Esaian
Graduate Student
sevan.esaian ‘at’ lifesci.ucsb.edu
CV

Sevan’s research is a part of the Santa Barbara Coastal Long Term Ecological Research Project (SBC LTER). He is using molecular biology, mathematical modeling, and geographic information science, to investigate epiphytic microbial population dynamics on Macrocystis pyrifera (giant kelp). His research focuses broadly on the synergistic effects of environmental factors driving giant kelp microbial abundance, diversity, and recovery throughout its life cycle (primarily senescence). During undergraduate studies at CSU – Los Angeles he studied the gene regulatory network of migratory neural crest cells in chicken embryos. He continued his education there as a MSc student by studying bird population dynamics and foraging preferences throughout the Los Angeles urban forest. Sevan joined the lab in Fall 2018.

Veronica HsuVeronica Hsu
Undergraduate Researcher

Veronica is studying the effect of species arrival order on community composition, known as priority effects. She is particularly interested in how mixotrophy (the ability of a single organism to utilize heterotrophy and photosynthesis) influences priority effects, and is currently working on a project to test the strength of priority effects of Paramecium bursaria, a mixotroph, and Colpidium, a heterotroph, at different light levels. Veronica is also interested finding the mechanisms that drive these outcomes, and analyzing the data using ecological modeling. She has also worked with Dr. Tadashi Fukami at Stanford University for the summer of 2018, studying priority effects in a flower nectar biome system. Aside from research, Veronica plays club water polo at UCSB, enjoys the beach, knits, and loves a good vegan sandwich from Ike’s.

Michelle Lepori-BuiMichelle Lepori-Bui
Lab Manager
mleporibui ‘at’ ucsb.edu

Michelle handles day-to-day operations and organization in the Moeller lab. Her primary focus is a project investigating the evolutionary response of mixotrophic nanoflagellates to altered temperatures. Before moving to Santa Barbara, Michelle worked as a research assistant with Dr. Tom Fisher at the University of Maryland Center for Environmental Science studying agricultural nutrient management strategies and water quality in the Chesapeake Bay watershed. She also has experience studying wetlands in Delaware and was an environmental educator in Marin County, CA. She graduated from the University of Delaware with a B.S. in Environmental Science concentrating in Hydrology, and minors in Geography and Wildlife Conservation. Her undergraduate research with Dr. Delphis Levia focused on forest biogeochemistry.

Lisa Mesrop, graduate studentLisa Mesrop
Graduate Student
lmesrop ‘at’ ucsb.edu
Google Scholar

Lisa is broadly interested in studying the mixotrophic nature of eukaryotic phytoplankton.  She is particularly interested in kleptoplastidic ciliates and how the retention of functional chloroplasts allows heterotrophic phytoplankton to expand their ecological niche by utilizing different metabolic strategies. Lisa received her BS in Environmental Biology at the University of California, San Diego. As an undergraduate, she worked with Dr. Amro Hamdoun and Dr. Tufan Gokirmak at the Scripps Institute of Oceanography studying solute carrier proteins and their functional role in sea urchin embryo development. She was formerly a research technician with Dr. David Caron at the University of Southern California, where she worked on various projects spanning from protistan community analysis to mixotrophic metabolism. Lisa joined the lab in Fall 2018. She will use the ciliate genus Mesodinium as a model system to understand how acquired metabolism facilitates niche partitioning and coexistence among closely related species. She aims to investigate the early evolutionary processes of endosymbiosis that gave rise to modern day eukaryotic phytoplankton.

IMG_5539_m_lrHolly Moeller
Principal Investigator
holly.moeller ‘at’ lifesci.ucsb.edu
Website / Google Scholar

Holly is a theoretical ecologist who uses mathematical and empirical approaches to understand acquired metabolism. Originally trained as a photophysiologist and phytoplankton ecologist, she built her mathematical toolkit as a masters student working on marine reserve bioeconomics. As a PhD student with Dr. Tadashi Fukami (and co-advised by Dr. Peter Vitousek),  she studied the ancient and diverse metabolic mutualism between trees and ectomycorrhizal fungi. Holly spent most of her postdoctoral tenure as an NSF Postdoctoral Research Fellow at the Woods Hole Oceanographic Institution, studying acquired metabolism in plankton with Drs. Michael Neubert and Matthew Johnson.  She was also briefly a Biodiversity Research Centre Postdoctoral Fellow at the University of British Columbia, before moving the UCSB. In addition to her scientific work, Holly is a bit of a ‘math evangelist,’ who tells everyone that she meets about the vital role of mathematics in biology.

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