Posts Tagged: UC Davis Department of Entomology
The arthropod community at UC Davis--and beyond--has circled the date, Wednesday, Feb. 24.
It's not just the last Wednesday of the month.
That's when insect biologist Rosemary Gillespie, director of the Essig Museum of Entomology, University of California, Berkeley, and chair of the Berkeley Natural History Museums, will be at UC Davis to speak on "Community Assembly through Adaptive Radiation: Spiders on Islands.”
The seminar, set from 12:10 to 1 p.m. in 122 Briggs, Kleiber Drive, is part of the UC Department of Entomology's winter seminar series. Can't make it to Briggs Hall? It will be Webcast live and then archived on the UC Davis Department of Entomology Web site.
“Remote islands are heralded as 'natural laboratories,' with communities largely comprising species that have evolved within the islands as a result of adaptive radiation,” said Gillespie, who is also the Schlinger chair of systematics and professor of organisms and the environment. “I have been studying spiders to elucidate commonalities underlying patterns of adaptive radiation and how communities are filled in such situations.”
“Overall, this research promises insights into the interplay between selection and the biotic environment in the evolution of species within a community,” she said.
Chris Searcy, graduate student in the Population Biology Graduate Group, Center for Population Biology, will introduce Gillespie.
Ian Pearse, graduate student studying with major professor Rick Karban, is coordinating the winter seminars, which began Jan. 6 and continue through March 10.
All seminars are from 12:10 to 1 p.m. on Wednesdays. On tap March 3 is Moran Segoli, postdoctoral researcher in the Jay Rosenheim lab, UC Davis Department of Entomology. He will speak on The Importance of Predation in Shaping Desert Communities and Trophic Levels."
On March 10, research chemist John Beck of the USDA Agricultural Research Station, Albany, will speak on "The Search for Non-Pheromonal Volatile Organic Compounds Toward Control of Navel Orangeworm, a Major Insect Pest of California Tree Nuts.”
Under a pilot Webcasting program launched by UC Davis entomology professor James Carey, these entomology seminars are being Webcast by his graduate students, James Harwood and Amy Morice. Not all are Webcast; some speakers requested they not be due to unpublished data.
A Web page lists all the archived seminars. Just click and watch.
When research entomologist Terry Griswold (left) speaks on North American bees on Wednesday, Feb. 10 in 122 Briggs Hall, Department of Entomology, University of California, Davis, he will bring with him his passion to diversify available crop pollinators and conserve pollinator populations.
His talk, from 12:10 to 1 p.m., will be Webcast and you can listen live. It will also be archived on this page. The noon lecture is part of the department's winter seminar series.
Griswold, who works for the Agricultural Research Service, U.S. Department of Agriculture (also known as USDA-ARS) says his research relates to "the systematics, biogeography, and biodiversity of native bees in support of the research unit's efforts to diversify available crop pollinators and conserve pollinator populations."
He focuses his systematics research focuses on Megachilidae, "the family with the greatest potential for manageable pollinators."
That family includes such native bees as the leafcutter bee (below). These bees are so named because they cut pieces of leaves for their nests.
Other members of the family include mason bees and carder bees. They're solitary bees as opposed to social (honey bees).
No, the bees and butterflies.Professor Daniel Papaj of the Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, will speak on "Ecological and Evolutionary Perspectives on Learning in Bees and Butterflies" at the next UC Davis Department of Entomology noonhour seminar.
The seminar is set for 12:10 to 1 p.m., Wednesday, Feb. 3 in 122 Briggs Hall, Kleiber Drive. Papaj's talk will be Webcast; listen live.
This is the fifth in a series of winter seminars coordinated by graduate student Ian Pearse of the Rick Karban lab. Graduate students James Harwood and Amy Morice of the James Carey lab are Webcasting the seminars.
According to Papaj's Web site, his laboratory studies the "reproductive dynamics of insects in the context of coevolved interactions. We are particularly interested in how the flexibility of an animal's behavior or physiology permits it to maintain high performance in variable environments. Plant-insect interactions are our primary focus, including mainly plant-herbivore and plant-pollinator interactions. Host-parasite, predator-prey, intrasexual and intersexual interactions are considered as well. Within this species interaction context, research topics addressed in our laboratory are diverse, as reflected in a list of keywords that describe recent work."
This look into the fascinating world of insects should draw a capacity crowd.
Papaj's talk will be archived for future viewing. Just access this page to view all the UC Davis Department of Entomology lectures Webcast since February 2009./span>
Westen Tiger Swallowtail
Home from the World War II battlefields, he enrolled in Compton Community College and then the University of California, Berkeley.
A family friend promised him a job in his termite control business once he finished his studies.
His college associates, however, couldn’t envision “Vern and termites” in the same sentence.
Neither could he.
“There were better things to do in life than crawling under a house looking for termites,” quipped Burton, who is known for his wry sense of humor. (Photo at right was taken circa 1980)
So began a 38-year career that would encompass 10 years as a Kern County Farm Advisor and 28 years as an Extension entomologist affiliated with the UC Davis Department of Entomology.
During his career, Burton, now 85, worked with crops such as alfalfa, beans, cotton, potatoes, small grains and sugar beets and helped resolve pest problems through integrated pest management (IPM) strategies and close associations with university researchers. “I always enjoyed helping people in ag and urban settings with their insect problems,” Burton said, “or their perceived problems.”
Tuber worms in potatoes? Check. Lygus bugs in seed alfalfa? Check. Spider mites on dry beans? Check. Nematodes in cotton? Check. Green peach aphids in sugar beets? Check. Burton helped recommend the guidelines in several of the Statewide IPM Program’s commodity manuals. His collaborative research also appears in California Agriculture and other publications.
“Vern was dedicated to California growers, and worked tirelessly to provide new and useful information to them,” said IPM specialist Frank Zalom, professor and former vice chair of the UC Davis Department of Entomology and a Fellow of the Entomological Society of America. “He understood the research-extension continuum better than most people ever could, having served the university as an extension entomologist in the county and also here on campus.”
Read more about Vern Burton and what he's doing today.
Yes, he's in the computer age!
UC Davis Entomology in 1970
If you've ever wondered about the relationship between predator biodiversity and herbivore suppression, that subject is on tap Wednesday, Jan. 27 at UC Davis.
The UC Davis Department of Entomology will host associate professor William Snyder (right) of the Department of Entomology, Washington State University, at a noon seminar in 122 Briggs Hall, Kleiber Drive.
The seminar is from 12:10 to 1 p.m. and will be Webcast. Folks can tune in, listen, and ask questions. Graduate students James Harwood and Amy Morice of the James Carey lab will be Webcasting the lecture. Here's the link to listen to the Webcast.
Snyder, who received his doctorate in entomology from the University of Kentucky in 1999, focuses his research on the relationship between biodiversity and biological control; community ecology; predator-prey interactions; and sustainable agriculture.
Snyder shares this abstract:
Classic ecological theory suggests that species must differ in their resource use patterns in order to co-exist. Although much recent empirical work has shown that resource use generally increases with greater species diversity, it has nonetheless proven difficult to demonstrate that resource partitioning truly underlies this pattern. Progress has been limited by the fact that differences among species in resource use typically are confounded with other species-specific attributes (size, metabolic rate, fecundity, etc.). In the first study I will discuss, we overcame this obstacle by co-opting plasticity in host choice among a community of aphid parasitoids, in order to manipulate the breadth of resource use independent of parasitoid species identity and diversity. We found that aphid suppression improved with greater specialist, but not generalist, parasitoid diversity. Thus, it was resource partitioning among species that fostered greater resource consumption in multi-species communities. I will then discuss results from several other natural enemy communities we have been studying, where resource partitioning among predator and/or pathogen species again appears to underlie stronger herbivore suppression at higher diversity levels.