- Author: Kathy Keatley Garvey
"In summary, I aim to use ecoinformatics (ecological big data, aggregated from multiple sources) to examine the impact of global change on agricultural insect populations," Lippey related. "A consistent challenge for researchers working in natural and managed ecosystems is that data available for characterizing insect responses to global change are severely limited across space and time. As a result, we know very little about how insects are responding to global change over time, and to what extent various global change drivers (e.g., climate change, land use change, pesticides) are responsible for documented changes in insect abundance. Here, I will use long-term data collected in agricultural systems for other purposes to bridge this data gap."
"Because field scouts and farmers collect data in a decentralized way, the availability, size, and accuracy of relevant agricultural data are unrivaled," she noted. "This approach will contribute to the emergence of a novel framework using big data to investigate global change questions across larger spatial and temporal axes than ever before. My results will have implications for the impact of anthropogenic pressure on food production stability, biodiversity, and ecosystem health."
Lippey, who received her bachelor's degree in entomology from UC Davis in 2019, is a graduate student of agricultural entomology in the Rosenheim lab, and an urban entomology graduate student in the Meineke lab. She previously did research in the Louie Yang lab, 2018-2021, as an undergraduate research assistant in insect ecology, and as an undergraduate research assistant in ant systematics with the Philip Ward lab.
In the Yang lab, Lippey investigated the effect of stripes on aversive behavior in fruit flies (Drosophila melanogaster), tsetse flies (Glossina), and mosquitoes (Aedes); studied the effect of size and movement constraints on ontogenetic color change (OCC) of swallowtail larvae (Papilio); and co-authored a collaborative review paper, "The Complexity of Global Change and its Effects on Insects," published in 2021 in the Current Opinion in Insect Science.
In the Ward lab, she studied the phenotypic evolution of the Big-Eyed Tree Ant (Pseudomyrmecinae: Tetraponera) and delivered a presentation on the project at the 2019 UC Davis Undergraduate Research Conference.
Lippey presented a poster on "Effects of Surrounding Landscapes on the Fork-tailed Bush Katydid (Scudderia furcata) in California Citrus" at the 2021 Entomological Society of America conference in Denver.
A talented illustrator, Lippey served as an illustrator and author of BuprestidID, an apolyclave identification key for more than 500 genera of Buprestidae (family of beetles known as jewel beetles or metallic wood-boring beetles) in a project headed by USDA's Animal and Plant Health Inspection Service.
- Author: Kathy Keatley Garvey
Global change ecologist Amanda Koltz, a senior scientist with the Department of Biology, Washington University, St. Louis, will speak on "Species Interactions and Ecosystems in a Changing World" at the UC Davis Department of Entomology and Nematology's virtual seminar at 4:10 p.m., Wednesday, Oct. 14.
"Biological communities and species interactions are changing rapidly as a result of global change," she says in her abstract. "These changes are likely to have cascading effects on ecosystems, but we still have limited understanding of the extent to which organismal responses to global change may also drive ecosystem responses to it. In this talk, I will present some of my work on the potential feedbacks between global change, communities, and ecosystem functioning from two different study systems. First, I will discuss how warming can alter the cascading effects of spiders in the Arctic tundra, and then I will discuss my recent efforts at characterizing the potential consequences of shifting interactions among ruminant hosts and their parasites. The common theme throughout the talk will be the importance of considering species interactions in efforts to understand ecosystem responses to global change."
Koltz describes herself as a "global change ecologist interested in how species interactions influence community composition and ecosystem function in the context of environmental change. I use common, widespread organisms that are sensitive to change-- like wolf spiders, mosquitoes and gut worms--to better understand how the animals in our everyday lives impact the ecosystems we live in. My recent work focuses on two fundamental questions: (1) How do biological communities respond to changes in the environment? and (2) What are the consequences of changes in species interactions for the cycling of energy and nutrients within ecosystems?"
Cooperative Extension specialist and agricultural entomologist Ian Grettenberger, assistant professor, UC Davis Department of Entomology and Nematology, coordinates the fall series of virtual seminars. They are held on Wednesdays at 4:10 p.m.
Host for the Koltz seminar is Emily Meineke, assistant professor of urban landscape entomology, who researches insect-plant interactions.
Grettenberger announced that this is the form to obtain the zoom link:
https://docs.google.com/forms/
Koltz's research has appeared in a number of recent publications:
- Small but Mighty: Measuring Parasites' Footprints
- Wolf Spiders May Turn to Cannibalism in a Warming Arctic
- Warming Alters Predator-Prey Interactions in the Arctic
- Bugged Out by Climate Change
- Higher Education Channel: Arctic Wolf Spider's Changing Diet May Help Keep Arctic Cool & Lessen Some Impact of Global Warming
