Dec. 7, 2011
DAVIS---Denise Ferkey, assistant professor, State University of New York (SUNY), Buffalo, will lead off the UC Davis Department of Entomology's winter seminar series with her talk on Nematodes: "Regulation of Chemosensory Signaling in C. elegans" on Wednesday, Jan. 11 from 12:10 to 1 p.m. in 122 Briggs. Hosts are Valerie Williamson and Ed Lewis.
Of her nematode research, Ferkey says: "Our research is directed toward understanding the regulatory mechanisms that control animal behavior. Using C. elegans sensory behavior (e.g. chemosensation) as a model, we study the regulation of G protein-coupled signal transduction pathways as well as the mechanisms by which the neurotransmitter dopamine modulates signaling and behavior.”
Ferkey received her bachelor of science degree in biology (minor in mathematics) from St. Norbert College, De Pere, WI, graduating summa cum laude in the honors program. She was named the "Outstanding Biology Graduate" and also won the William J. O’Callaghan Award to Outstanding Graduate in Arts and Sciences.
She earned her doctorate degree from the Department of Biochemistry, University of Washington, Seattle, in 2002. Her thesis: "Glycogen Synthase Kinase-3 (GSK-3) Regulation During Early Xenopus laevis Development."
Assistant professors Louie Yang and Joanna Chiu are coordinating the seminar. Most of the talks (except for Jan. 11 and March 21) will be webcast and then can be viewed on UCTV. Professor James R. Carey is spearheading the project.
The list of speakers:
Jan. 11: Denise Ferkey, assistant professor, State University of New York (SUNY), Buffalo, will speak on "Regulation of Chemosensory Signaling in C. elegans."
Hosts: Valerie Williamson, professor of nematology, and Ed Lewis, professor of nematology and entomology and acting chair of the UC Davis Department of Entomology.
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Webcast and posted on UCTV: No.Jan. 18: Anurag Agrawal, professor of ecology at Cornell University, Ithaca, N.Y., will speak on "Evolutionary Ecology of Plant Defenses."
Host: Andrew Merwin of the Michael Parrella lab.
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Webcast and Posted on UCTV: YesJan. 25: Mary Louise Flint, Cooperative Extension specialist and associate director for Urban and Community IPM, UC Statewide Integrated Pest Management Program, will speak on "Educating the Urban Public about Insect Pests and their Management."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: None
Webcast and Posted on UCTV: YesFeb. 1: T’ai Roulston, research associate professor and curator, State Arboretum of Virginia, will speak on "Pollen as a Resource for Pollinators: What Governs Quality?"
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Neal Williams, assistant professor of entomology.
Webcast and Posted on UCTV: YesFeb. 8: Damian Elias, assistant professor, Department of Environmental Science, Policy and Management, UC Berkeley, will speak on "Multimodal Communication in Jumping Spiders."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Leslie Saul of the Neal Williams lab.
Webcast and Posted on UCTV: YesFeb. 15: Jamesina J. Scott, district manager and research director, Lake County Vector Control District, will speak on "Aedes japonicus -- Tracking an Invasive Mosquito We Knew Very Little About."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Brittany Mills of the William Reisen lab.
Webcast and Posted on UCTV: YesFeb. 22: Jennifer Thaler, associate professor, Cornell University, Ithaca, N.Y., will speak on "Tri-Trophic Plant-Insect Interactions in Solanaceous Plants."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Billy Krimmel of the Jay Rosenheim lab
Webcast and Posted on UCTV: Yes
Feb. 29: Jay Rosenheim, professor of entomology at UC Davis, will speak on "Insect Ecology in Natural and Agricultural Systems."
Site: 122 Briggs Hall.
Host: Kelly Hamby of the Frank Zalom lab.
Webcast and Posted on UCTV: YesMarch 7: Candice Stafford, graduate student researcher in the Diane Ullman lab, will speak on "A Virus at the Helm: Infection with Tomato Spotted Wilt Virus Modifies Thrips Feeding Behavior."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Diane Ullman, professor of entomology and associate dean for undergraduate academic programs in the College of Agricultural and Environmental Sciences.
Webcast and Posted on UCTV: Yes
March 14: Ulrich Mueller, W. M. Wheeler Lost-Pines Professor of Integrative Biology, University of Texas, Austin, will speak on "Ant-Microbe Interaction and Evolution."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Marek Borowiec of the Phil Ward lab.
Webcast and Posted on UCTV: YesMarch 21: Stephen Welter, professor, Department of Environmental Science, Policy and Management, UC Berkeley, and associate dean of instruction and student affairs, will speak on "Pheromone Mating Disruption Systems for Management of Insects in Perennial Crops: New Successes with Old Problems."
Site: 12:10 to 1 p.m., 122 Briggs Hall.
Host: Steve Seybold, UC Davis Department of Entomology affiliate
Webcast and Posted on UCTV: No.Contact information:
Louie Yang: (530) 754-3261 or lhyang@ucdavis.edu
Joanna Chiu: (530) 752-1839 or jcchiu@ucdavis.edu
--Kathy Keatley Garvey
Communications specialist
UC Davis Department of Entomology
(530) 754-6894
June 1, 2012
DAVIS--Stephanie Calloway, who will receive her bachelor’s degree in entomology June 17 from UC Davis, has been named the UC Davis Outstanding Senior in Entomology. She was nominated for the Cal Aggie Alumni Association award by her master advisor Sharon Lawler, professor of entomology.
Calloway was honored at the recent UC Davis Department of Entomology barbecue.
“Stephanie has distinguished herself not only by her academic excellence, but also by her extensive research achievements and outreach to the public,” Lawler wrote in her letter of nomination.
Calloway, who researches the diversity and abundance of tardigrades or “water bears,” transferred to UC Davis from Fresno City College (FCC), where she won a Bruce and Merry Johnston Endowed Scholarship for the Sciences. While at FCC, she began independent research on a National Science Foundation-funded project on tardigrades.
Tardigrades, eight-legged animals in the phylum, Tardigrada (the word means “slow walker” referring to its bearlike gait) are found all over the world. They can survive at extreme temperatures, from nearly absolute zero to 304 degrees F.
“These tiny animals live in moist habitats, but they have fascinating adaptations to extremes of heat and cold,” Lawler explained. “Stephanie’s first papers emerged from this work after she transferred to UC Davis.” Calloway is the first author of a publication in which she described a new species of tardigrade from Alaska, and she is the second author of a paper comparing urban and rural tardigrade communities.
Lawler described her as “an outgoing and engaged young scientist who has continued to impress her faculty mentors at both UC Davis and UC Merced. “She has performed studies of the aquatic invertebrates of Yosemite, curation of the UC Davis ant collection with Professor Phil Ward, and she is now working with Professor Alan Hastings, UC Davis Department of Environmental Science and Policy. Her current independent research project focuses on how maternal effects influence the population dynamics of flour beetles.”
In addition, Calloway shares her great love of natural ecosystems with others, Lawler noted. Calloway held a volunteer outreach and education position with the Sierra Foothill Conservancy, leading educational nature hikes for schoolchildren and other members of the public. She also volunteered with Adventure Risk Challenge, a literary/environmental study program for high school students who speak English as a second language.
“Those of us who were privileged to have taught Stephanie Calloway in the classroom found her to be talented, perceptive and very helpful to her peers--in short, the kind of student we look forward to teaching,” Lawler said. “She will be an alumna who brings great credit to UC Davis for her community spirit, service activities and research achievements.”
Calloway, who plans to pursue graduate studies in the fall of 2013, described her time at UC Davis as “amazing.”
“The professors I have had here have been no less than fantastic, and I appreciate them all so much.”
Calloway, a graduate of Clovis High School, east of Fresno, recalls that an introductory biology course at FCC was all it took to “fall in love with the life sciences." Then, after taking a zoology class, "I was sold on insects." While at FCC, she received the award for “Best Undergraduate Presentation” at the Central California Research Symposium for her work on urban and rural tardigrades.
“I was very lucky to work on the NSF tardigrade grant during my years at FCC and UC Davis,” Calloway said.
Interested in a variety of science projects, she's worked on high-elevation stream insects, including caddisflies "I fell in love iwth the little guys); collected mangrove gastropods in Malayasia and Brunei, Southeast Asia; and this summer will be working with Dave Rizzo, UC Davis Plant Pathology, on pest-host interactions in old-growth forests in the Teakettle Wilderness, Sierra Nevada.
--Kathy Keatley Garvey
Communications specialist
UC Davis Department of Entomology
(530) 754-6894
Jan. 3, 2012
DAVIS--Noted honey bee expert Eric Mussen, Extension apiculturist with the UC Davis Department of Entomology, will discuss three decades of beekeeping when he delivers the keynote address on Thursday, Jan. 5 at the 43rd annual American Honey Producers’ Association Convention in Phoenix.
Mussen will speak on “Never Expect Business as Usual” in the Sheraton Crescent Hotel. He will cover pests, parasites, pesticides, diseases, malnutrition and stress.
Mussen, who joined the UC Davis Department of Entomology in 1976, will also touch on the newly announced threat to honey bees, the parasitic phorid fly (Apocephalus borealis). San Francisco State University researchers, in work published Jan. 3 in the Public Library of Science (PLoS One) journal, found that the parasitic fly lays its eggs in the honey bees; it was previously known to parasitize bumble bees, but not honey bees.
The infested bees reportedly fly around like zombies and cannot return to their hives.
“This information explains why some, infested, honey bee adults leave the colony at night and are not likely to come back,” Mussen said. “The percent infestation level is not high enough to cause a Colony Collapse Disorder (CCD) loss, by itself. However, anything that further stresses the bee population and increases bee losses can contribute to CCD.”Mussen said the fly “may be contributing to the loss of adult bees from colonies, but that probably is happening, also, in colonies that are not collapsing. CCD seems to be an additive malady, so losses to fly parasitism can join the other stresses. It does not appear to be a dominant factor. ”
The San Francisco researchers detected the fly parasite in some commercial hives in California and South Dakota. Mussen said that without surveys, “we would not know for sure how widespread it is. However, it is likely that a bumble bee parasite would be distributed at least as widespread as its bumble bee hosts.”
Mussen said he does not consider the fly a significant threat. “Honey bees have an amazing ability to ‘make up for’ unanticipated losses--like exposures to bee-toxic agrichemicals in the fields--to the adult population by rearing more brood than would be expected at that time of the year to return to normal populations size. So, if the colony is shrinking, abnormally, the bees often can re-establish the normal size by rearing ‘extra’ brood. However, depending upon the inherent genetic abilities of a specific colony to tolerate fly parasitism, some colonies might be prone to developing parasite levels that are overwhelming, and actually succumb to the infestations.”
Mussen, emphasizing he does not see the phorids as a major threat, said that perhaps “all the other stresses that we have been studying have combined to impair the immune system of the bees. Then, whatever mechanism in the bees' bodies that used to prevent successful parasitism by the fly no longer is working as well. Nearly every facet we have studied--microbes, mite feeding, exposure to pesticides, etc.--all have had a suppressing effect on the honey bee immune system. The current U.S. environment seems to be very stressful to honey bees.”
Among the other speakers at the Jan. 4-8 convention will be bee breeder-geneticist Susan Cobey, who has a dual appointment at UC Davis and Washington State University. She will discuss “The Introduction of Honey Bee Germplasm and Re-Establishment of Apis Mellifera Caucasica” on Saturday, Jan. 7.
Asked about the phorids, Cobey said she learned a year ago of the San Francisco-based study. “I’m still not sure how widespread it is or how much of a problem it may be…another contributing factor in the (bee health) puzzle.”
Colony collapse disorder (CCD), first noticed in the winter of 2006, is a mysterious malady characterized by worker bees abandoning the hive. Mussen believes it is a combination of factors that suppress the immune system: pests, parasites, pesticides, diseases, malnutrition and stress.
“It’s a complex issue,” he said at a fall 2007 seminar at UC Davis when he chronicled bee health. “But one thing is certain: It seems unlikely that we will find a specific, new and different reason for why bees are dying.”
Hive abandonment not a new occurrence, Mussen said the 2007 seminar. “Similar phenomena have been observed since 1869. It persisted in 1963, 1964 and 1965 and was called Spring Dwindling, Fall Collapse and Autumn Collapse. Then in 1975, it was called Disappearing Disease. But the disease wasn’t what was disappearing. The bees were.”Although the cause of CCD is unknown, scientists have noted the high number of viruses and other pathogens, pesticides and parasites present in CCD colonies, as compared to non-CCD colonies. The high levels contribute to weakened immune systems, making the bees more susceptible to pests and pathogens.
--Kathy Keatley Garvey
Communications specialist
UC Davis Department of Entomology
(530) 754-6894
Jan. 5, 2012
/table>DAVIS--A federally funded grant that supports the Biomolecular Technology Training Program (BTTP) at the University of California, Davis, has been renewed for another five years.The $2.4 million grant, funded by the National Institute of General Medical Sciences, National Institutes of Health, was awarded to principal investigator Bruce Hammock of the UC Davis Department of Entomology, who obtained the initial grant 10 years ago.
“At a time when training grants are being ended left and right, this is good news,” said Hammock, a distinguished professor of entomology who also directs several other federally funded programs on campus and does research with the UC Davis Cancer Center. “This means that we can continue to nurture exceptional graduate students and provide them with a training experience that will prepare them to be world-class scientists and leaders, who will advance the foundation of U.S. healthcare research.”
The formal training program for the biotechnology training grant is the Designated Emphasis in Biotechnology (DEB) graduate program. DEB is part of the UC Davis Biotechnology Program, a special research program of the Office of Research that's located in the dean's offices of the College of Biological Sciences, Life Sciences Building.
The BTTP provides graduate students with multidisciplinary training and research opportunities in disease modeling, diagnosis, prevention and health care.
Hammock credited the “heavy lifting” involved in the program operation and grant renewal to Judith Kjelstrom, director of the UC Davis Biotechnology Program and program coordinator of BTTP and DEB; BTTP associate directors Martina Newell-McGloughlin and Karen McDonald; and Marianne Hunter, BTTP grant administrator and program manager of the UC Davis Biotechnology Program.
Students supported by the NIH Biomolecular Technology Training Grant are also members of the UC Davis DEB program, which boasts more than 200 Ph.D students. The training grant includes 50 mentors drawn from 72 departments and 29 graduate groups and programs. Of the mentors, seven are distinguished or chaired professors, five are fellows of the American Association for the Advancement of Science, and one is a member of the National Academy of Sciences.
UC Davis Cancer Center Closely Linked with Biomolecular Training Program
The UC Davis Cancer Center, directed by Ralph deVere White, is closely linked with the Biomolecular Technology Training Program. The grant's principal investigator Bruce Hammock does research at the Cancer Center.Many other UC Davis faculty are or have been affiliated with the Cancer Center and the grant. Among them: Kit Lam, John Voss and David Segal, (Department of Biochemistry and Molecular Medicine), Paul Knoepfler (Department of Cell Biology and Human Anatomy), John Rutledge (Department of Internal Medicine); Earl Sawaii (Department of Pathology and Laboratory Medicine); Tilahun Yilma (Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine) and David Rocke ( Biomedical Engineering, College of Engineering).
Among the affiliates from the different labs:
Kit Lam lab: Diana Lac is a current biotech fellow. Scott Wong was a NIH biotech fellow.
John Voss lab: Silvia Hilt is a current NIH biotech fellow
David Segal lab: Sarah Lockwood was a biotech fellow for two years.
John Rutledge lab: Laura Higgins was a biotech fellow
Tilahun Yilma lab: Fatema Aziz was a biotech fellow
David Rocke lab: Blythe Durbin was a NIH biotech fellow
Paul Knoepfler lab: Benjamin Yuen is a 2011-12 Howard Hughes Medical Institute (HHMI) scholar. (Knoepfler is the recipient of a Basil O'Connor Starter Scholar Research Award for his work in stem cell research.)
Frederick Meyers, executive associate dean of the School of Medicine, directs the HHMI IMBS training grant. Judith Kjelstrom serves as co-director.In their summary statement, NIH officials said that UC Davis “has a long and distinguished history in interdisciplinary scientific research and biotechnology is a notable example of this.”
“The training program has extensive interaction with industrial biotechnologists,” they said, also praising “the leadership and executive management of the training program as both efficient and well-conceived.” Hammock has “enjoyed a long and distinguished career in biotechnology research and education,” the NIH report said. “His research group has made seminal contributions in enzymology, bioanalytical chemistry, toxicology, agricultural chemistry and pharmacology.”
“Particularly noteworthy is his work on the structure, function and inhibition of epoxide hydrolases. He has been a leader on the UC Davis campus in promoting biotechnology, as evidenced by his leadership of this training program and the NIEHS-funded Superfund Basic Research and Training Program. His research efforts are well funded from external sources, and his work is highly regarded nationally and internationally, as reflected in election to the National Academy in 1999.” (NIEHS is the National Institute of Environmental Health Sciences.)
The NIH training grant in biomolecular technology is one of only four biotechnology training grants in California; the others are at UCLA, Stanford, and The Scripps Institute.
Hammock, who joined the UC Davis Department of Entomology faculty in 1980, is a member of the National Academy of Sciences and a fellow of the Entomological Society of America. As the principal investigator of the grant that funds the UC Davis Superfund Research Program, he received a $13.2 million, five-year competitive renewal grant in 2010 from NIEHS. He also directs the NIEHS Combined Analytical Laboratory.
Related Links:
About Bruce Hammock
Bruce Hammock Featured in Environmental Factor Newsletter
About the UC Davis Biotechnology Program
--Kathy Keatley Garvey
Communications specialist
UC Davis Department of Entomology
(530) 754-6894
Jan. 5, 2012
/table>DAVIS--“A New Year, a New Bug: How Insects Are Discovered” will set the theme on Saturday, Jan. 14 for the first open house of the year at the Bohart Museum of Entomology on the University of California, Davis.
The event, free and open to the public, is set from 1 to 4 p.m. The Bohart Museum, home of a global collection of more than seven millions specimens, is located in Room 1124 of Academic Surge, corner of California Drive and LaRue Road.
“Visitors will be able to learn how insects are discovered, described, drawn and even named,” said Tabatha Yang, education and outreach coordinator.Scores of UC Davis scientists from the Department of Entomology have species named after them. Among them:
Bohart Museum director Lynn Kimsey, professor of entomology at UC Davis, has described some 200 new species of bees and wasps. She has a genus and tribe of wasps named after her: Kimseyella and Kimseyini.Native pollinator specialist Robbin Thorp, emeritus professor of entomology, has described and named 19 new species of bees, and another is pending from the vernal pool ecosystems. Another species that he discovered, a fairy moth, is named for him: Adela thorpella Powell (1969). Others that are named for him include a parasitoid wasp, Monodontomerus thorpi; a cuckoo wasp, Primeuchroeus thorpi; a long-horn beetle, Cortodera thorpi; and a bee, Andrena (Onagrandrena) thorpi.
Thorp also was one of several co-authors who named a nematode, Bursaphelenchus anatolius. It is so-named because the species came from Anatolia, Turkey; lead author was Robin Giblin-Davis. It is an internal phoretic associate of a sweat bee, genus Halictus, from Turkey. (Phoretic associate means when one organism transports another organism of a different species.)
The nematode was not named for me, but I was one of several coauthors who named the species with Robin Giblin-Davis as the lead author. The species was named “anatolius” since it came from Anatolia (Turkey).
Senior museum scientist Steve Heydon has described 24 new species of parasitoid wasps and has an entire genus of wasps named for him, Heydoniella.
Professor Phil Ward, a noted ant specialist, has described 80 new species of ants. He has a number of insects named for him, including a crane fly and a strange ant named Pyramica warditeras (the species name translates from the Greek to mean "Ward's monster.")
The late Richard Bohart (1913-2007), for whom the museum is named, identified more than one million mosquitoes and wasps, many displayed at Bohart Museum, a teaching, research and public service facility that he founded on campus in 1946.Also at all the open houses, visitors can also enjoy a live “petting zoo” with such residents as Madagascar hissing cockroaches and walking sticks. A gift shop, where visitors can purchase t-shirts, sweatshirts, jewelry, insect nets and “insect candy,” is also available.
The Bohart Museum houses the seventh largest insect collection in North America, and is also the home of the California Insect Survey, a storehouse of the insect biodiversity.
The Bohart Museum launched its series of weekend openings for the fall season on Saturday, Sept. 24 with “Catch, Collect and Curate: Entomology 101.”
The remaining schedule for the 2011-2012 academic year:
Saturday, Jan. 14, 1 to 4 p.m.: “A New Year, a New Bug, How Insects Are Discovered”
Sunday, Feb. 12, 1 to 4 p.m., “Bug Lovin’”
Saturday, March 10, 1 to 4 p.m., “Hide ‘n’ Seek: Insect Camouflage”
Saturday, April 21: 10 to 3 p.m., UC Davis Picnic Day
Saturday, May 12, 1 to 4 p.m., “Pre-Moth’ers Day”
Sunday, June 3, 1 to 4 p.m., “Bug Light, Bug Bright…First Bug I See Tonight.”
Regular hours are from 9 a.m. to noon and from 1 to 5 p.m., Monday through Thursday. It is closed on Fridays and on major holidays. Admission is free.
More information is available on the Bohart website or by contacting Tabatha Yang, education and outreach coordinator at tabyang@ucdavis.edu or (530) 752-0493. Due to limited space, group tours will not be booked during the weekend hours.
See video from Good Day Sacramento featuring Lynn Kimsey, Phil Ward and Robbin Thorp at http://gooddaysacramento.cbslocal.com/video/.
--Kathy Keatley Garvey
Communications specialist
UC Davis Department of Entomology
(530) 754-6894