- Author: Kathy Keatley Garvey
Eight of the 10 seminars are both in-person and virtual, while two will be virtual only. The in-person seminars will take place from 4:10 to 5 p.m. (Pacific Time) on Wednesdays in Room 122 of Briggs Hall, located off Kleiber Drive. All seminars will live-streamed on Zoom and recorded for future viewing. The Zoom link: https://ucdavis.zoom.us/j/95882849672.
The topics range from bark beetles and meat-eating bees to exit seminars by two UC Davis Department of Entomology and Nematology doctoral candidates.
Wednesday, Jan. 11--Virtual Only
Clément Vinauger, Ph.D.
Assistant professor
Virginia Tech Department of Biochemistry
Title: "Neural and Molecular Basis of Mosquito Behavior"
Host: Joanna Chiu, professor and vice chair, UC Davis Department of Entomology and Nematology
Wednesday, Jan. 18
Quinn McFredrick, Ph.D.
Assistant professor
UC Riverside Department of Entomology
Title: "The Weird World of Pathogens, Microbes, and Meat-Eating Bees"
Wednesday, Jan. 25
Lisa Chamberland, Ph.D.
Post-doctoral fellow, Jason Bond Lab
UC Davis Department of Entomology and Nematology
Title: Pending
Host: Jason Bond, the Evert and Marion Schlinger Endowed Chair, UC Davis Department of Entomology and Nematology and associate dean, UC Davis College of Agricultural and Environmental Sciences.
Wednesday, Feb. 1
Chris Fettig, Ph.D.
Research entomologist
U. S. Forest Service
Title: "Bark Beetles: How Tiny Insects Are Transforming Western Forests with a Little Help from Climate Change'
Wednesday, Feb. 8
Lauren Ponisio, Ph.D.
Assistant professor
University of Oregon Department of Biology
Title: "Disease in Plant-Pollinator Communities"
Host: Rachel Vannette, associate professor, UC Davis Department of Entomology and Nematology
Wednesday, Feb. 15
Christine Tabuloc, doctoral candidate
Molecular geneticist, Joanna Chiu lab
UC Davis Department of Entomology and Nematology
Title: (Title pending; this is her exit seminar)
Host: Joanna Chiu, professor and vice chair, UC Davis Department of Entomology and Nematology
Wednesday, Feb. 22
Kyle Lewald, doctoral candidate
Molecular geneticist, Joanna Chiu lab
UC Davis Department of Entomology and Nematology
Title: "Using Genomic Data to Understand and Prevent the Spread of Tuta absoluta" (exit seminar)
Host: Joanna Chiu, professor and vice chair, UC Davis Department of Entomology and Nematology
Wednesday, March 1
Dana Nayduch, Ph.D.
Research entomologist
USDA-ARS Center for Grain and Animal Health Research
Title: "Can Surveying Microbial Communities of House Flies Help Us Understand Emerging Threats to Animal and Human Health?"
Wednesday, March 8
Amy Worthington, Ph.D.
Assistant professor
Creighton University Department of Biology
Title: "A Host of Hardships: The Costs of Harboring a Long-Lived Parasite"
Host: Joanna Chiu, professor and vice chair, UC Davis Department of Entomology and Nematology
Wednesday, March 15 -- Virtual Only
Sylvain Pincebourde, Ph.D.
Researcher
University of Tours, Insect Biology Research Institute
Title: "The Key Role of Microclimates in Modulating the Response of Ectotherms to Climate Change"
Host: Emily Meineke, assistant professor, UC Davis Department of Entomology and Nematology
The Department of Entomology and Nematology, ranked among the top entomology departments in the United States, is chaired by nematologist and professor Steve Nadler. Vice chair is molecular geneticist and physiologist Joanna Chiu.
For further information on the seminars or technical difficulties with Zoom, contact Meineke at ekmeineke@ucdavis.edu.
- Author: Kathy Keatley Garvey
Brazilian-born scientist Mônica Antunes Ulysséa, a postdoctoral fellow in the laboratory of Corrie Moreau, Cornell University, will speak on "Morphology for Assessing Species Diversity and Previously Unknown Biological Traits of the Ant Genus Hylomyrma" at a virtual seminar at 4:10 p.m., Wednesday, Dec. 7.
The Zoom link: https://ucdavis.zoom.us/j/95882849672. Host is doctoral candidate Jill Oberski of the Phil Ward laboratory.
"Hylomyrma is a Neotropical ant genus of small to midsized ants, cryptic inhabitants of the leaf-litter of wet and dry environments, with a remarkable body sculpture," she says in her abstract. "They occur from sea level to 3,600m, from Mexico to northern Argentina and southern Brazil; its higher diversity is in the Amazon. Out of the 30 recognized species, 11 have females whose external morphology combines morphological traits of workers and queens, and at least three of them present female specimens with queen-like traits. These mosaic specimens sent me back to fieldwork to investigate more about the genus biology. I went to Serra do Cipó, Brazil, to find nests of the endemic Hylomyrma primavesi. Hence, for the first time, the H. primavesi nest architecture and the colony size were documented, the ergatoid queen, male and immatures were collected, and the behavior of the forage workers and their feeding preferences based on field and lab observations were recorded."
Ulyssea specializes in myrmecology, taxonomy, phylogeny, systematics, curatorial practices, and science dissemination. She received a 2018-2023 postdoctoral fellowship at Zoology Museum of University of Sao Paulo (2018-2023) to study in the Moreau lab. Professor Moreau, who teaches arthropod biosystematics and biodiversity, directs and curates the Cornell University Insect Collection.
Ulyssea's resume includes:
- Doctorate from the Zoology Museum of University of Sao Paulo, Brazil, Graduate Program in Systematics, Animal Taxonomy, and Biodiversity (2013-2017)
- Internship at Sorbonne University, Pierre and Marie Curie Campus, Paris/France (2015-2016).
- Master's degree in zoology, Graduate Program in Zoology at the State University of Feira de Santana, BA/Brazil (2010-2012).
- Bachelor and licentiate in biological sciences at Federal University of Santa Catarina, Florianópolis, SC/Brazil (2002-2008)
Urban landscape entomologist Emily Meineke, assistant professor, coordinates the department's seminars. This is the last of the fall seminars. For further information on the seminars or technical difficulties with Zoom, contact Meineke at ekmeineke@ucdavis.edu.
- Author: Kathy Keatley Garvey
The article, “Vehicle Pollution Is Associated with Elevated Insect Damage to Street Trees,” is published in the Journal of Applied Ecology. It received the Editor's Choice Award.
“This research reveals strong effects of vehicle pollution on insect damage to trees,” said Meineke, who conceived the idea for the project, funded by the department. “Trees next to highways are exposed to multiple stressors, including urban heat, pollution, and insects, all of which affect one another and tree health. Our research strongly suggests planting trees that are less susceptible to herbivory near highways.”
Her team included her colleague, UC Davis distinguished professor Richard “Rick” Karban, who co-wrote the manuscript, and junior specialist David Eng, then of the Meineke lab. The study targeted vehicle pollution in the Sacramento Valley “and adds to a now growing chorus of studies demonstrating the scientific value of intra-urban gradients of particular variables (heat, pollution, surrounding vegetation),” they wrote.
They suspect that “vehicle pollution depresses defensive pathways within trees and reduces the concentrations of key compounds that protect against herbivore damage.”
The researchers demonstrated that leaf damage to a native oak species (Quercus lobata), known as the valley oak,” is “substantially elevated on trees exposed to vehicle emissions.”
“Together, our studies demonstrate that the heterogeneity in vehicle emissions across cities may explain highly variable patterns of insect herbivory on street trees,” they wrote. “Our results also indicate that trees next to highways are particularly vulnerable to multiple stressors, including insect damage. To combat these effects, urban foresters may consider installing trees that are less susceptible to insect herbivory along heavily traveled roadways.”
The valley oak is a deciduous, long-lived tree that can reach up to 98 feet in height and live up to 600 years. It is known to tolerate wildfires.
“Past studies hint at the potential role of vehicle pollution as a driver of leaf nutritional quality for chewing herbivores. At one site in the United Kingdom, trees within 100 meters of motorways were much more likely to be severely defoliated than trees at further distances. Elevated herbivory was attributed to elevated nitrogen dioxide (NO2) along highways.” Another study in the Los Angeles Basin, showed that “herbivore communities on oak trees at more polluted natural areas tended to be more dominated by chewing herbivores compared to less polluted natural areas.”
The UC Davis researchers wrote that their results “demonstrate that highly polluted, highway-adjacent habitats are associated with shifts in plant-insect interactions and that this topic may be ripe for future research into how roadside environments may affect insect conservation and plant performance in cities.”
Their study highlights the importance of planting decisions along major roadways. “The concept of ‘right tree, right place' has long stated that tree selection should be aimed at maximizing the performance in urban areas,” they wrote. “Quercus lobata and other species that are highly susceptible to herbivores may provide ecosystem services sub-optimally along highways, and may have shorter lifespans due to chronic damage promoted by on-road pollution trees.”
“Identifying tree species that are robust to pollution, and resistant to insects that may benefit from pollution, could be a novel consideration in planting decisions. This consideration may become even more important as many cities become drier and hotter, and insect herbivores have disproportionate impacts on tree growth. Because city-owned trees are planted and cannot themselves evolve in response to climate change, we may be required to develop new cultivars to promote robust trees along roadways.”
- Author: Kathy Keatley Garvey
The Labudio is located in Room 128 of the Environmental Horticulture Building, 200 Arboretum Drive, UC Davis.
The public is invited. "Please bring a t-shirt if you'd like to screen print one of our designs on it, too," they said. "Kids can make shirts, too. The event will be indoor/outdoor, so please dress accordingly." No reservations are necessary.
"The students were each assigned an insect species in decline or moving about the planet and becoming invasive in new habitats," said Meineke, an urban landscape entomologist and assistant professor. "The insects students were assigned are among those most impacted by humans, and students were given an opportunity to re-envision how people might interact more gently and intentionally with insects, our small, yet consequential co-inhabitants."
"We are so proud of how the students interacted with this topic," Meineke said. "They were charged with researching their insects and turning that research into designs that could be screen printed on watercolor paper, ceramic tiles to be installed in Briggs 122, and fabric. Their designs are nothing short of spectacular!"
UC Davis distinguished professor Diane Ullman, an artist and entomologist, "helped immensely," said Meineke, adding that she wasn't "an official co-teacher but she essentially acted as one."
Meineke was recently named one of the 12 UC Davis recipients of the prestigious Hellman Fellowships, an annual program supporting the research of early-career faculty. Her project, “Assessing Preservation of Chemical Compounds in Pressed Plants," focuses on whether herbarium specimens collected over hundreds of years harbor chemical compounds that reveal mechanisms responsible for changing insect-plant interactions.
Meineke was among the scholars and artists who helped spearhead the newly created Harvard Museum of Natural History's “In Search of Thoreau's Flowers: An Exploration of Change and Loss," hailed as an examination of the natural world and climate change at the intersections of science, art and history. She helped launch the project in 2017 when she was a postdoctoral fellow at the Harvard University Herbaria. The 648 plant specimens that Henry David Thoreau donated to the museum form the foundation of the exhibit. It opened to the public May 14.
A native of Greenville, N.C., Meineke joined the UC Davis Department of Entomology and Nematology on March 1, 2020, from the Harvard University Herbaria. As a National Science Foundation postdoctoral fellow, she studied how urbanization and climate change have affected plant-insect relationships worldwide over the past 100-plus years.
She received her bachelor of science degree in environmental science, with a minor in biology, in 2008 from the University of North Carolina, Chapel Hill. She obtained her doctorate in entomology in 2016 from North Carolina State University.
Professor Ullman, a celebrated teacher, artist and researcher, is the 2014 recipient of the Entomological Society of America (ESA) National Excellence in Teaching Award and the UC Davis Academic Senate's 2022 Distinguished Teaching Award for undergraduate teaching. She is a fellow of both the American Association for the Advancement of Science (2014) and the ESA (2011).
When she was singled out for the UC Davis Academic Senate Award, her nominators praised her as providing "superb teaching and mentoring for many years, not only in the Department of Entomology and Nematology but as a leader in the Science and Society program. She has brought art-science fusion alive in innovative ways. Her nominees and students rave about her deep dedication, care, and knowledge in all teaching interactions, as well as her overall commitment to student success. One student nominee summed it up: "My experience in her course last spring was one that lifted my spirits, enriched my education, and strengthened my love for art and science during a time when it was difficult to feel positive about anything.”
Ullman's research encompasses insect/virus/plant interactions and development of management strategies for insect-transmitted plant pathogens. She has worked with many insect vector species (thrips, aphids, whiteflies, leafhoppers, mealybugs) and the plant pathogens they transmit, including viruses, phytoplasma and bacteria.
One of her latest art projects--with colleagues, UC Davis students and community members--is the Sonoran Dreams Art Project in the Garden Apartments of the University Retirement Community, Davis. Handmade ceramic tiles depicting the flora, fauna and symbols of the Sonoran Desert surround the elevator.
Ullman received her bachelor of science degree in horticulture from the University of Arizona and her doctorate in entomology from UC Davis in 1985. She joined the UC Davis faculty in 1991 after serving as an associate professor of entomology at the University of Hawaii. Her credentials include: chair of the UC Davis Department of Entomology, 2004-2005; associate dean for undergraduate academic programs for the College of Agricultural and Environmental Sciences, 2005 to 2014; and co-founder and co-director of the UC Davis Art/Science Fusion Program, launched in September 2006.
- Author: Kathy Keatley Garvey
Her project, “Assessing Preservation of Chemical Compounds in Pressed Plants," will focus on whether herbarium specimens collected over hundreds of years harbor chemical compounds that reveal mechanisms responsible for changing insect-plant interactions.
"In particular, the project will reveal extent to which herbarium specimens that are dried and stored continue to harbor key chemicals—such as defensive chemicals against insects created by plants themselves and pesticides—in their leaves," Meineke said. "This project will inform my lab's future investigations into effects of urbanization and climate change on insect herbivores."
Individual awards ranged from $15,000 to $36,000, or totalling $300,000. This is the 15th year that Hellman fellowships have been awarded to UC Davis faculty. San Francisco philathropists Warren and Chris Hellman established the program in 1995 in partnership with their daughter Frances Hellman, then a newly tenured member of the UC San Diego faculty, and now a professor of physics at UC Berkeley.
Meinke, a native of Greenville, N.C., joined the UC Davis Department of Entomology and Nematology on March 1, 2020, from the Harvard University Herbaria. As a National Science Foundation postdoctoral fellow, she studied how urbanization and climate change have affected plant-insect relationships worldwide over the past 100-plus years.
Emily received her bachelor of science degree in environmental science, with a minor in biology, in 2008 from the University of North Carolina, Chapel Hill. She obtained her doctorate in entomology in 2016 from North Carolina State University, studying with major professors Steven Frank and Robert Dunn. Her dissertation: "Understanding the Consequences of Urban Warming for Street Trees and Their Insect Pests."
Meineke joins three other UC Davis Department of Entomology and Nematology faculty as recipients of Hellman Fellowships:
- Community ecologist Rachel Vannette, now an associate professor, won the award 2018. (See news story)
- Honey bee scientist Brian Johnson, now an associate professor, received the award in 2015. (See news story)
- Community ecologist Louie Yang, now a professor, won the award in 2012. (See news story)
Although the Hellmans ended their annual fellowship funding on all UC campuses two years ago, they provided endowments to the UC campuses ($6 million to UC Davis) to enable “fellowships in perpetuity,” according to a UC Davis news story.