Winter 2023

Tuesdays at 3:30 PM
Earth and Marine Sciences A340

January 10, 2023

Cancelled due to storms

January 17, 2023

Speaker: Russell Callahan, UCSC

Title: The role of deep weathering in ecological and hydrological processes across the mountains of California


Host: Amanda Donaldson

January 24, 2023

Speaker: Yuxin Zhou, UCSB

Title: New insights into the Atlantic Meridional Overturning Circulation instabilities during the last glacial cycle


Host: Sam Kodema

January 31, 2023

Speaker: Corey Garza, Cal State Monterey Bay

Title: A game of drones: Advancing discover and innovation in coastal research


Host: Ned Richards

February 7, 2023 - Remote

Speaker: Andrew Czaja, University of Cincinnati

Title: Searching for Life on Mars


February 14, 2023

Speaker: Emilie Dunham, UCLA

Title: Meteorite hunting in Antarctica to uncover Solar System mysteries


Host: Nathan McGregor

February 21, 2023 - Remote

Speaker: Linda Kah, University of Tennessee

Title: Unravelling the Mysteries of the Mesoproterozoic


February 28, 2023 - Remote

Speaker: Jena Johnson, University of Michigan

Title: Exploring Mineral Signals of Early Iron-Cycling Life through (Bio)geochemical Experiments


March 7, 2023

Speaker: Sara Tenamoeata Kahanamoku, Ulana ʻIke Center of Excellence Hawaiʻi Sea Grant College Program

Title: Resource allocation across scales: Examining life history and demography from Santa Barbara Basin foraminifera to academic research


Host: J Fearon

March 14, 2023

Speaker: Jennifer Glass, Georgia Institute of Technology

Title: Ironing out Life’s First Breaths


Abstract: Every cell contains a biochemical record of four billion years of Earth-life coevolution. Our mitochondria were once free-living bacteria. Each unit of the electron transport chain that we use to breathe oxygen was borrowed from older microbial machinery. Aerobic respiration is a medley of pieces of older anaerobic respiratory pathways such as methanogenesis, anoxygenic photosynthesis, and iron oxidation. Yet we have barely begun to chart the vast landscape of myriad microbial metabolisms. In this talk, I will describe how dissecting the molecular machines of modern microbes can give us glimpses of the early Earth environments that supported life’s first breaths.

Host: Matthew Clapham