A picture of drought: ND ecologist matching NASA images with field data to measure forest health
Nate Swenson strides so quickly through the Wisconsin forest while carrying a large pole clipper that postdoctoral researcher Vanessa Rubio usually follows the 40 feet of rope dragging behind him.
When they reach the designated plot, Swenson extends the clipper about 30 feet high and pulls the rope to snip off a leafy twig from the canopy of a tall, tagged tree. The twig floats down through the dappled sunlight and lands in his hand.
It would be a majestic scene but for the mosquitoes. Hundreds and thousands of them, swarming everything that smells like warm blood.
Swenson cuts twigs from nine sample trees in each plot where the reflection of light from the leaves could show up in a space-based image. Rubio selects one leaf from each twig, folds it into a labeled test tube, and drops it in a metal canister of liquid nitrogen.
This flash freezing will preserve its RNA, which degrades quickly otherwise. Later in his campus lab, Swenson can study the leaf’s gene expression, which changes as it is stressed by drought later in the summer.
Latest Colleges & Schools
- Political scientist explores extending constitutional duties to private actorsNew research from Christina Bambrick, the Filip Family Assistant Professor of Political Science at Notre Dame, explores the nonconventional idea that each of us, as private citizens, may be responsible for upholding the constitutional rights of our fellow citizens. She examines constitutional politics across the globe to explore these different approaches to balancing rights and responsibilities in a democratic society.
- Six new faculty join psychology department to advance research on mental health, other disordersThe Department of Psychology at the University of Notre Dame has hired six new faculty members this year, a significant expansion of a field that is core to the University’s commitment to fighting the U.S. mental health crisis.
- Keough School invites members of the community to join in International Day of Peace eventsThe Keough School of Global Affairs will observe the International Day of Peace with two campus events: a prayer service featuring University President Rev. Robert A. Dowd, C.S.C., on Friday (Sept. 20) and a talk by a Notre Dame graduate who serves in the Sierra Leone government on Tuesday (Sept. 24). Both events are free and open to the public.
- Former Irish prime minister to speak at Notre DameLeo Varadkar, former prime minister of Ireland and current member of parliament in Dáil Eireann, will join the Keough-Naughton Institute for Irish Studies, part of Notre Dame's Keough School of Global Affairs, for a public discussion of Irish current affairs including public health initiatives, civic life and the political future of the island of Ireland. “A Conversation with Deputy Leo Varadkar” will take place from 3 to 4:30 p.m. on Sept. 20 (Friday) in the Hesburgh Center Auditorium. The event is free and open to the public.
- Virtual learning detrimental to school attendance, especially in districts with higher poverty rates, study findsSince the COVID-19 pandemic, rates of chronic absenteeism have nearly doubled across the nation for students in kindergarten through grade 12. This increase was tied to the mode of instruction during the early years of the pandemic. In particular, schools that employed virtual learning as the primary teaching mode during the 2020-21 school year experienced a greater increase in chronic absenteeism in the following year. That increase was significantly greater in school districts with higher levels of poverty, according to new research from William Evans, the Keough-Hesburgh Professor of Economics and co-founder of Notre Dame’s Wilson Sheehan Lab for Economic Opportunities.
- Nobel laureate Michael Levitt to receive the 2024 Carrier MedalMichael Levitt Nobel laureate Michael Levitt, a professor of structural biology at Stanford…
