- Author: Kathy Keatley Garvey
In newly published research in Ecology Letters, "Dispersal Enchances Beta Diversity in Nectar Microbes," Vannette and colleague Tadashi Fukami of Stanford University's Department of Biology, examined microbial communities inhabiting the nectar of the sticky monkeyflower, Mimulus auranticus, at the Jasper Ridge Biological Preserve in California's Santa Cruz Mountains.
The flower, in the family Phrymacease, is a native shrub common in chaparral and coastal scrub habitats of California and Oregon. It is primarily pollinated by Anna's hummingbird. Other common pollinators include bumble bees, carpenter bees, and thrips.
Dispersal is considered a key driver of beta diversity, which is “the variation in species composition among local communities,” Vannette said.
They are the first to publish work showing that increased dispersal can increase biodiversity.
In their experiment, they reduced natural rates of dispersal by eliminating multiple modes of microbial dispersal. “Specifically we focused in nectar-inhabiting bacteria and yeasts that are dispersed among flowers by wind, insects and birds,” they said. “We imposed dispersal limitation on individual flowers and quantified microbial abundance, species composition and microbial effects on nectar chemistry.”
This work has direct implications for conservation of many organisms in addition to bacteria and yeast, suggesting that preserving routes of dispersal among habitat patches may be important in the maintenance of biodiversity. In contrast to previous work showing that dispersal can homogenize communities or make them more similar, the published work demonstrates that dispersal can in some cases generate communities that are more different from each other. The authors hypothesize that this could be driven by priority effects, where early arriving species change the species that can establish within that habitat.
Why focus on nectar-inhabiting microbes? Previous work by Vannette and others shows that microbial activity in nectar can alter nectar chemistry and influence plant-pollinator interactions by altering nectar chemistry. In the Ecology Letters study, microbes were also found to change nectar chemistry, explaining ~50% of the variation in sugar composition in the field. This suggests that nectar-inhabiting bacteria and yeast can influence the nectar rewards available to pollinators in a natural setting.
More broadly, “Studying the role of microbes in the environment addresses one of the biggest mysteries in science,” Vannette says. In her current work, she and her lab are investigating how microbial communities form, change, and function in their interactions with insects and plants. They are also researching how microorganisms affect plant defense against herbivores and plant attraction to pollinators.
Vannette, a former postdoctoral fellow at Stanford, joined the UC Davis Department of Entomology and Nematology faculty as an assistant professor in 2015.
Vannette's research was funded by the Gordon and Betty Moore Foundation through the Life Sciences Research Fellowship. Stanford also funded the research through grants from the National Science Foundation, the Terman Fellowship, and the Department of Biology at Stanford University.
- Author: Kathy Keatley Garvey
Diane Ullman's Entomology 1 class has scheduled a Student Art Showcase of ceramics, glass and paintings at a public reception from 6 to 8 p.m., Thursday, June 8 in the UC Davis Environmental Horticulture Courtyard.
The event, celebrating the work of the students, is free and open to the public.
Diane Ullman is a professor of entomology, an artist, and the co-founder and co-director of UC Davis Art/Science Fusion Program. She is the former associate dean for undergraduate academic programs, College of Agricultural and Environmental Sciences.
Ullman received the Entomological Society of America's Distinguished Teaching Award in 2014.
- Author: Kathy Keatley Garvey
Kathy Keatley Garvey, communications specialist for the UC Davis Department of Entomology and Nematology, and Steve Elliott, communication coordinator for the Western Integrated Pest Management Center, both affiliated with the UC Agriculture and Natural Resources, will receive the awards at the annual ACE conference, set June 13-16 in New Orleans.
Judges awarded Kathy Keatley Garvey:
- A silver award (second place) for a photo series entitled the "Predator and the Pest: What's for Dinner?" on her Bug Squad post on the UC Agriculture and Natural Resources website on Oct. 3, 2016. Her series showed a praying mantis eating a cabbage white butterfly. Judges commented" "Definitely tell a story, interesting angles and good macro technique. Caught in the moment, but has a still life feel to it, like it's a diorama in a museum and we get to look at the scene from all sides. A unique look and good capture. "
- A bronze award (third place) for her feature photo, "Save the Monarchs," posted Aug. 8, 2016 on her Bug Squad blog. It showed a monarch clinging to a finger. Judges commented "The detail in this photo is incredible. The lighting on the hand against the black background is definitely striking. And it makes the white spots on the monarch pop! Beautiful!"
- A bronze award (third place) for blog writing on her Bug Squad blog posted Sept. 6 and entitled "A WSU-Tagged Monarch: What a Traveler!" Judges wrote: "Short and sweet and to the point. Perfect for web reading. The photo is so helpful to the reader. The call to action at the end is a plus and not something I've seen on other entries. Fabulous use of social media to extend the reach of the article, too. "
Judges awarded Steve Elliott:
- A gold (first place) award for promotional writing for his story, "Safflower Makes an Areawide IPM Program Work. published in the newsletter, Western Front. Judges scored his work 100 out of a possible 100. They wrote: "You had me at Rodney Dangerfield. Very creative, the lead drew me right in wanting to read more. Excellent flow, packed with information in a narrative style. Congratulations on the terrific analytics for the newsletter."
- A bronze (third place) for his photo essay, "Loving the Land of Enchantment." Judges wrote: " Good variety of shot sizes which keeps it interesting. Diversity of stories along with photo content is engaging, and sticking to the IPM theme helps. There is so too much text info that it was difficult wade through. The words compliment the photos instead of the usual where the story supersedes the photos."
They also won ACE awards last year: Garvey, a gold, two silvers and a bronze, and Elliott, a silver.
The Western Integrated Pest Management Center is funded by the USDA's National Institute of Food and Agriculture to promote the development, adoption and evaluation of integrated pest management, a safer way to manage pests. The Western IPM Center works to create a healthier West with fewer pests. It is located in the UC ANR Building in Davis.
The UC Davis Department of Entomology and Nematology, headquartered in Briggs Hall, is affiliated with the College of Agricultural and Environmental Sciences and the UC Agriculture and Natural Resources (UC ANR). The department is globally ranked No. 7 in the world.
- Author: Kathy Keatley Garvey
The poster competition, open to graduate students throughout the country, drew 14 posters that focused on bees and/or pollination. It is a traditional part of the symposium, hosted by the UC Davis Honey and Pollination Center and the UC Davis Department of Entomology and Nematology. The event took place in the UC Davis Conference Center.
Brand, who joined the Ramirez lab in 2013, received his bachelor's degree in biology from the University of Dusseldorf, Germany, and then went on to pursue his master's degree there, studying the evolutionary history and the patterns of selection of olfactory receptor genes in a pair of sister lineages of euglossine bees.
"Pheromone communication has long been known to play a central role in the origin and evolution of species diversity throughout the tree of life," he wrote in the introduction on his poster. "What are the underlying genetic and molecular mechanisms that control pheromone variation and signal detection?"
Other winners were:
- Second place, $750; Jacob Peters, Harvard University, “Self-Organization of Collective Nest Ventilation by Honey Bees”
- Third place, $500; John Mola, UC Davis, “Fire Induced Change in Flowering Phenology Benefits Bumble Bees"
- Fourth place, $250; Devon Picklum, University of Nevada, Reno, “Floral Visitation and pollen Deposition Bombus- Pollinated Dodecatheon Apinum and Pedicularis Groenlandica in the Sierra Nevada”
Judges were Robbin Thorp, UC Davis distinguished emeritus professor of entomology; and two symposium speakers, keynote speaker Steve Sheppard, Thurber Professor of Entomology at Washington State University, Pullman, Wash, and Stacey Combes, assistant professor, UC Davis Department of Neurobiology, Physiology and Behavior.
Sheppard's address on “Bees, Mushrooms and Liquid Nitrogen… What?” reflected the broad spectrum of his research from expanding the genetic pool of honey bees to health-related aspects of mushroom slurry. Other speakers included Margaret Lombard, chief executive officer of the National Honey Board, and Maj Rundlof of Lund University, Sweden, an International Career Grant Fellow at UC Davis. Michael Karle discussed the new Food and Drug Administration rules concerning the use of antibiotics in bee colonies.
Another highlight of the symposium was the awards ceremony honoring the first class of apprentice-level master beekeepers from the UC Davis-based program. More than 50 apprentices received their first-level pins from instructors Elina Niño, Extension apiculturist, and apiarist Bernardo Niño.
Amina Harris, director of the UC Davis Honey and Pollination Center, and Neal Williams, associate professor of entomology, UC Davis Department of Entomology and Nematology, chaired the event. Williams served as emcee.
The 2018 Bee Symposium will feature keynote speaker Thomas Seeley, the Horace White Professor in Biology at Cornell University, Ithaca, N.Y., and author of the widely acclaimed book, Honey Bee Democracy.
- Author: Kathy Keatley Garvey
DAVIS--Tabatha Yang, education and outreach coordinator of the Bohart Museum of Entomology, is the recipient of the top award in the service category of the UC Davis Staff Assembly's Citation for Excellence Program. She will be honored by the chancellor at a ceremony on June 26.
Yang, who joined the Bohart Museum nine years ago, coordinates museum tours, classroom visits, special weekend hours, summer camp programs, and other outreach activities that connect science and scientists with the public. She collaborates with interns, undergraduates, staff, graduate students and faculty to accomplish the outreach program.
Stacey Brezing, chair of the UC Davis Staff Assembly Citations of Excellence Committee, wrote to Yang: “It gives me great pleasure to notify you that you have been selected as the top selection for this category, the committee was greatly impressed with your work."
Yang will receive a cash prize of $1000 as a “gesture of appreciation for your contribution to the campus community,” Brezing said.
Nominations for the service award are based on achievements such as fostering engagement and inclusion in campus community, leadership, and volunteerism.
Yang was nominated, confidentially, by Lynn Kimsey, director of the Bohart Museum and professor of entomology at UC Davis; senior museum scientist Steve Heydon of the Bohart Museum, and Kathy Keatley Garvey, communications specialist for the UC Davis Department of Entomology and Nematology.
They wrote: “Our nominee is a treasure, a one-of-a-kind gem and an all-around ambassador who exemplifies all that is good and great about UC Davis. A friendly and caring person who joined the campus museum workforce in 2009, she makes all of us feel needed, wanted, and appreciated as if we were ‘Person of the Year.' Throughout the year, she engages more than 20,000 children, families, students, faculty and staff who visit the museum or attend her science outreach programs. She enthusiastically and freely gives of her time to plan and participate in weekend open houses. She co-founded the annual UC Davis Biodiversity Museum Day six years ago, which this year drew 12 participating museums and an attendance of 3000. This year she chaired the committee.
“Five years ago, she launched an annual summer camp for children that is so popular it draws youths from around the nation, resulting in multiple camps and waiting lists. She helps coordinate the UC Davis Picnic Day activities in the museum, engaging more than 3500 excited and enthusiastic visitors. At the Solano County Ag Day, she shared scientific information with 3000 youngsters over a four-hour period, always smiling and genuinely interested in each person.
“Our nominee is kind, caring, thoughtful and never without a smile or a word of encouragement. She strongly believes in inclusion. For example, she wears a safety pin, a way of showing that she is a safe space for those who are afraid. She shows she is in solidarity with victims of racism, homophobia and religious discrimination and will protect everyone who feels in danger, regardless of gender, sexuality, race, disability or religion. 'You are safe with me!'
“We watched her lead a tour of children of migratory workers, educating them about what could be a lifelong interest or their occupation. ‘You can be anything you want to be. You can do this! We know you can!' She can reach the shyest of the shy.
“One volunteer at the museum says ‘Wherever I go, her name is legendary. People just rave about her and her work.' Said another: ‘She is one of the most patient, outgoing individuals I know who loves to teach and share information.'
“Said her supervisor: ‘She has greatly expanded our outreach programs, participating in Solano County Youth Ag Day, and many other STEM programs offered at libraries, schools and county facilities. She gives science outreach programs to about 15,000 adults and children every year. She is particularly good at working with groups of children and maintaining discipline at the same time as engaging them in the topic, so that everyone can see, hear and learn. We always request an evaluation from groups she talks to and they always rave about her presentations.'
“In summary, our nominee's exemplary service, high morale, encouragement, passion and inclusion are a treasure-trove of qualities that single her out as the gem she is.
The Staff Assembly's annual Citations for Excellence Awards Program provides recognition for individual staff and staff teams who have demonstrated outstanding achievement in one of the following areas: teaching, research, service, supervision and innovation. There is also a team award for campus community contributions and service. Teams include project or program staff, office staff, or other similar groups.
The Bohart Museum is a world-renowned insect museum that houses a global collection of nearly eight million specimens. It also maintains a live “petting zoo,” featuring walking sticks, Madagascar hissing cockroaches and tarantulas. A gift shop, open year around, includes T-shirts, sweatshirts, books, jewelry, posters, insect-collecting equipment and insect-themed candy.
The Bohart Museum's regular hours are from 9 a.m. to noon and 1 to 5 p.m. Mondays through Thursdays. The museum is closed to the public on Fridays, Saturdays and Sundays and on major holidays. Admission is free.
More information on the Bohart Museum is available by contacting (530) 752-0493 or bmuseum@ucdavis.edu.