Posts Tagged: Jay Rosenheim
As its name implies, it's native to Asia. It was first detected in North America in Wisconsin in July 2000. Technically, it’s Aphis glycines Matsumura. In lay language, that's spelled "p-e-s-t."
Now found throughout much of the Midwest, it sucks.
With its mouthparts.
Enter George Heimpel, professor of entomology at the University of Minnesota's Department of Entomology. Heimpel, who received his doctorate in entomology in 1995 from UC Davis, will return to the UC Davis campus Wednesday, Dec. 4 to speak on “Specificity and the Process of Biological Control Using Aphid Parasitoids."
His seminar takes place from 4:10 to 5 p.m. in 122 Briggs Hall. It is scheduled to be recorded for later posting on UCTV. (Editor's Note: The seminar was initially scheduled for noon, but due to midwest storms, Heimpel's flight was delayed.)
"Over the past 25 years or so, importation ('classical') biological control of arthropod pests has undergone a paradigm shift in which emphasis has shifted from an exclusive focus on efficacy to a focus on the actual and potential risks of biological control introductions," Heimpel says. "Host specificity testing is the cornerstone of risk assessment in this new paradigm, and only highly specialized agents are currently approved for release. Here, I describe the process of importation biological control of an invasive agricultural pest in the North-Central U.S.--the Asian soybean aphid."
"Numerous parasitoid species were imported from Asia as potential biological control agents and I focus on five species for which host-specificity testing was done," he says. "Each of these three species tells a different story in terms of host-specificity, the potential for biological control efficacy, and actual success of field releases. Together, these case studies illustrate some potential relationships between safety and efficacy in biological control, and the importance of various traits in mediating safety and efficacy of biological control agents."
Born in Germany, Heimpel grew up mainly in California. He received his bachelor’s degree in conservation and resource studies in 1988 from UC Berkeley and his master's degree in 1991 in entomology and applied ecology from the University of Delaware before heading over to Jay Rosenheim's lab at UC Davis to receive his doctorate in 1995. Heimpel then spent two years as a USDA post-doctoral fellow at the University of Wisconsin in Mike Strand’s lab.
Heimpel now teaches biological control and insect behavior.
And one of his targets is the Asian soybean aphid.
Asian soybean aphid. (Courtesy Wikipedia, Claudio Gratton, University of Wisconsin)
It's exciting to see a promising career unfold.
We first met UC Davis graduate student Alex Van Dam in 2010 when he received a $12,000 award from the University of California Institute for Mexico and the United States (UC MEXUS), an academic research institute dedicated to encouraging, securing, and contributing to binational and Latino research and collaborative academic programs and exchanges.
Then later in 2010 he received a Robert and Peggy van den Bosch Memorial Scholarship for his research on a scale insect. His project: "Investigating Host-Associated Lineage Splitting Within Dactylopius Using Molecular Phylogenetics."
Now Van Dam has just been selected for a National Science Foundation (NSF) Postdoctoral Fellowship to work on insect/host plant research.
The postdoctoral fellowship award is supported by both the Directorate for Biological Sciences and the Office of International Science and Engineering at NSF. During his two-year fellowship, he will work on a project, “New Insights into Insect Host-Plant Generalization: Population Transcriptome Sequencing of Porphyrophora spp.,” under the sponsorship of Uffe H. Mortensen at the Department of Systems Biology, Technical University of Denmark.
Van Dam will identify genes responsible for host-plant range in scale insects, and how they are maintained across populations. “This will be accomplished by testing hypotheses delineating physiological genes responsible for insect host-plant generalization,” he said. “Host-plant generalization is the ability to feed on many different species of plants. I will test if increased dispersal of host-plant detoxification genes in generalists leads to maintenance of functional gene paralogs, that is, gene duplications, across large effective populations.
A native of Los Angeles, Van Dam received his bachelor's degree and master's degree in entomology at UC Riverside and is currently a doctoral candidate and a member of the Entomology Graduate Group. He studies with major professor Bernie May in the Department of Animal Science. Professors Jay Rosenheim and Steve Nadler of the Department of Entomology are members of his dissertation committee.
Meanwhile, Van Dam is gearing up for his exit seminar at the Animal Science Spring Seminar Series. He'll present his seminar on Monday, April 29 from 12:10 to 1 p.m. in Weir Room 2154, Meyer Hall.
Another great success story!
Alex Van Dam, photographed next to a giant cactus.
Want to develop skills that will make your application to graduate school, medical school or veterinary school really stand out from the crowd?
The UC Davis Research Scholars Program in Insect Biology is recruiting undergraduate students who are eager to experience one-on-one research training and mentorship.
This will be the third cohort of students.
The program, now officially approved by the Academic Senate, is coordinated by professor Jay Rosenheim and assistant professors Louie Yang and Joanna Chiu, all of the UC Davis Department of Entomology.
The Research Scholars Program in Insect Biology provides the opportunity to learn research skills in all areas of biology, including:
- behavior and ecology
- population biology
- mathematical bology
- human health
- cell biology
- molecular biology
Applications are now being accepted from first and second-year students and first-year transfer students. The application deadline is April 10, 2013. More information on the program and how to apply is on the program’s website.
Successful venture? Yes, indeed. Two members of the Research Scholars Program in Insect Biology recently received President's Undergraduate Fellowship Program (PUF) grants.
They are Sarah Staley, mentored by medical entomologist Anthony “Anton” Cornel, associate entomologist with the UC Davis Department of Entomology and based at the Kearney Agricultural Research and Extension Center, Parlier; and Don Hoang, mentored by evolutionary geneticist Artyom Kopp, professor in the Department of Evolution and Ecology.
Staley and Hoang were among 25 undergraduate students receiving grants from a pool of 62 applicants. Staley submitted her proposal titled “Prevalence of Leucocytozoa Infections in Potential Vector Populations of Black Flies in Alaska.” Hoang's proposal: "The Yeast/Drosophila Relationship: Is it Meant to Last?”
Read their story on the UC Davis Department of Entomology website.
No small feat. Great things are happening in the Research Scholars Program in Insect Biology. Jay Rosenheim, Louie Yang and Joanna Chiu are making it happen.
Jay Rosenheim, professor of entomology at UC Davis, doing research in a meadow. (Photo by Kathy Keatley Garvey)
It's not just future entomologists who study insects. So do future physicians, veterinarians, chemists, ecologists and scores of others.
Indeed, insects are involved in many biological fields, including genetics and molecular biology; biochemistry and physiology; cell biology; population biology; behavior and ecology; biodiversity and evolutionary ecology; and agroecology.
At UC Davis, a trio from the Department of Entomology faculty wants to make a difference in college students' education. They've formed a campuswide Undergraduate Honors Research Program in Insect Biology to help undergraduates obtain long-term mentoring and research experiences.
Veteran professor Jay Rosenheim and newer faculty members Louie Yang and Joanna Chiu said they want to "provide academically strong and highly motivated undergraduates with a multi-year research experience that cultivates skills that will prepare them for a career in biological research. This will be useful for students whose career goals will take them to medical school, veterinary school, or graduate programs in any biological sub-discipline.”
UC Davis freshmen and sophomores interested in applying for the program must do so by May 15 by sending an email to Elvira Hack (email@example.com). In a one-page letter, they will explain their motivation to join the program, and their special interests. Selected students will then be interviewed.
The gist of the program:
- During an initial academic retreat (at the Sagehen Creek Field Station in the Sierra Nevada mountains), faculty will instruct students about the process of science, approaches to choosing research questions, and the core elements of experimental design.
- Students will be placed in a faculty mentor’s laboratory. The goal: to find a strong match between the student’s research interests and the research focus of the mentoring faculty member’s lab.
- Students will be encouraged to take supporting coursework in insect biology (that is, general entomology, insect physiology, insect ecology) to provide the most relevant foundational information for conducting research in insect biology.
- For many participating students, it’s expected that there will be a natural transition from paid positions (when the students are contributing to a larger research effort) to course credits (when the students are pursuing their own independent research).
- Students will receive ongoing training and career guidance in conducting research, scientific writing, presentation of research results at professional scientific meetings, and all aspects of preparing applications for graduate or professional schools.
We applaud the work that Rosenheim, Yang and Chiu are doing, and the 30-some members of the mentoring faculty.
Rosenheim, who joined the UC Davis Department of Entomology faculty in 1990, has long supported the academic and research needs of students. In fact, on May 11, he will receive a UC Davis Distinguished Teaching Award for Undergraduate Teaching. Faculty and students consider him "an extraordinary educator, a remarkable scholar and a superb teacher and mentor."
The ultimate compliment, however, came from an unsolicited comment on the web: “the best teacher at (UC) Davis. Hands down. Take him if you can.”
Lygus bug (Lygus herperus) could be one of the insects studied in the honors program. (Photo by Kathy Keatley Garvey)
It's quite an honor to be elected a Fellow of the American Association for the Advancement of Science (AAAS).
And it's a double honor when two persons from the same department at the same university receive the honor the very same year.
That's what happened today.
Professors Richard "Rick" Karban and Jay Rosenheim of the Department of Entomology, University of California, Davis, were both named Fellows. They're among the 531 new Fellows announced today--with eight from UC Davis. Fellows are selected by their peers for their “scientifically or socially distinguished efforts to advance science or its applications.”
Karban was selected for “distinguished contributions to the field of plant-herbivore interactions, particularly for work on induced plant resistance and volatile cues used by plants” and Rosenheim for “distinguished contributions to the field of ecology, particularly for empirical and theoretical contributions to our understanding of insect predator-prey and host-parasitoid interactions.”
Rosenheim and Karban share a love of entomology, research and teaching. You can read more about their accomplishments here.
The UC Davis Department of Entomology now has a total of seven AAAS Fellows: James Carey, elected in 2000; Bruce Eldridge, elected in 1981; Waler Leal, 2006; Robert Page (UC Davis emeritus professor who's now at Arizona State University), 2006; Thomas Scott, 2007, and now Karban and Rosenheim
Rosenheim, who joined the UC Davis Department of Entomology faculty in 1990, received another outstanding honor earlier this year: he was honored by the Associated Students of UC Davis for excellence in the classroom. In fact, he was singled as the most outstanding teacher in the College of Agricultural and Environmental Sciences.
And Karban? Since joining the UC Davis Department of Entomology in 1982, he's graduated 14 graduate students or post-docs; 13 are professors at top institutions, including UC Davis (3) and Cornell (3).