- Author: Kathy Keatley Garvey
And from UC Davis to France...
Seminar coordinator Emily Meineke, urban landscape entomologist and assistant professor, UC Davis Department of Entomology and Nematology, has announced the list of the department's 10 winter seminars, which begin Jan. 11 and continue through March 15.
Eight of the 10 seminars are both in-person and virtual, while two will be virtual only. The in-person seminars will take place from 4:10 to 5 p.m. (Pacific Time) on Wednesdays in Room 122 of Briggs Hall, located off Kleiber Drive. All seminars will live-streamed on Zoom and recorded for future viewing. The Zoom link: https://ucdavis.zoom.us/j/95882849672.
Wednesday, Jan. 11--Virtual Only
Clément Vinauger, Ph.D.
Assistant professor
Virginia Tech Department of Biochemistry
Title: (Title pending: He researches molecular genetics of host-seeking behavior in insects)
Wednesday, Jan. 18
Quinn McFredrick, Ph.D.
Assistant professor
UC Riverside Department of Entomology
Title: "The Weird World of Pathogens, Microbes, and Meat-Eating Bees"
Wednesday, Jan. 25
Lisa Chamberland, Ph.D.
Post-doctoral fellow, Jason Bond Lab
UC Davis Department of Entomology and Nematology
Title: Pending
Wednesday, Feb. 1
Chris Fettig, Ph.D.
Research entomologist
U. S. Forest Service
Title: "Bark Beetles: How Tiny Insects Are Transforming Western Forests with a Little Help from Climate Change'
Wednesday, Feb. 8
Lauren Ponisio, Ph.D.
Assistant professor
University of Oregon Department of Biology
Title: (Title pending: Her research involves untangling the complexity of community ecology, wild bee conservation and data science)
Wednesday, Feb. 15
Christine Tabuloc, doctoral candidate
Molecular geneticist, Joanna Chiu lab
UC Davis Department of Entomology and Nematology
Title: (Title pending; this is her exit seminar)
Wednesday, Feb. 22
Kyle Lewald, doctoral candidate
Molecular geneticist, Joanna Chiu lab
UC Davis Department of Entomology and Nematology
Title: "Using Genomic Data to Understand and Prevent the Spread of Tuta absoluta" (exit seminar)
Wednesday, March 1
Dana Nayduch, Ph.D.
Research entomologist
USDA-ARS Center for Grain and Animal Health Research
Title: (Pending)
Wednesday, March 8
Amy Worthington, Ph.D.
Assistant professor
Creighton University Department of Biology
Title: "A Host of Hardships: The Costs of Harboring a Long-Lived Parasite"
Wednesday, March 15 -- Virtual Only
Sylvain Pincebourde, Ph.D.
Researcher
University of Tours, Insect Biology Research Institute
Title: "The Key Role of Microclimates in Modulating the Response of Ectotherms to Climate Change"
The Department of Entomology and Nematology, ranked among the top entomology departments in the United States, is chaired by nematologist and professor Steve Nadler. Vice chair is molecular geneticist and physiologist Joanna Chiu.
For further information on the seminars or technical difficulties with Zoom, contact Meineke at ekmeineke@ucdavis.edu.
- Author: Kathy Keatley Garvey
Take the case of a male monarch reared, released and tagged by Steven Johnson in a Washington State University citizen-science project operated by WSU entomologist David James. Johnson tagged and released the monarch on Sunday, Aug. 28, 2016 in Ashland, Ore. Seven days later, on Sept. 5, it fluttered into our family's backyard pollinator garden in Vacaville, Calif., where we photographed it.
"So, assuming it didn't travel much on the day you saw it, it flew 285 miles in 7 days or about 40.7 miles per day," James said. "Pretty amazing." (See Bug Squad blog)
But how do monarchs know when to migrate? You can find out when you attend the UC Davis Bohart Museum of Entomology open house on Saturday, Jan. 18 from 1 to 4 p.m. in Room 1124 of the Academic Surge Building, Crocker Lane.
Doctoral student Yao Cai, a fourth-year doctoral student in the Joanna Chiu lab who studies circadian clocks in insects, will relate how monarchs know when to migrate. “Using Drosophila melanogaster (fruit fly) and Danaus plexippus (monarch butterfly), as models, we seek to understand how these insects receive environmental time cues and tell time, how they organize their daily rhythms in physiology and behavior, such as feeding, sleep and migration (in monarch butterfly)," he says.
Cai is one of six doctoral students who will be showcasing their research. The event is free and family friendly.
Visitors not only will have the opportunity to talk to graduate students about their research and glean information about insects, but will be able see their work through a microscope. In fact, eight microscopes will be set up, Yang said.
In addition to Cai, doctoral students participating and their topics:
Ants: Zachary Griebenow of the Phil Ward lab, UC Davis Department of Entomology and Nematology
Assassin flies: Charlotte Herbert Alberts, who studies with major professor Lynn Kimsey, director of the Bohart Museum, UC Davis Department of Entomology and Nematology
Bats (what insects they eat): Ecologist Ann Holmes of the Graduate Group in Ecology, Department of Animal Science, and the Genomic Variation Laboratory, who studies with major professors Andrea Schreier and Mandi Finger.
Bark Beetles: Crystal Homicz. who studies with Joanna Chiu, UC Davis Department of Entomology and Nematology and research forest entomologist Chris Fettig, Pacific Southwest Research Station, USDA Forest Service, Davis.
Forensic entomology: Alexander Dedmon, who studies with Robert Kimsey, UC Davis Department of Entomology and Nematology
Some doctoral students also will deliver PowerPoint presentations or show slides. The projects:
Bark Beetles
“Did you know that between 1987 and 2017 bark beetles were responsible for more tree death than wildfire?” asks Crystal Homicz, a first-year doctoral student. “Bark beetles are an incredibly important feature of forests, especially as disturbance agents. My research focuses on how bark beetles and fire interact, given that these are the two most important disturbance agents of the Sierra Nevada. At my table, I will discuss how the interaction between bark beetles and fire, why bark beetles and fire are important feature of our forest ecosystem, and I will discuss more generally the importance of bark beetles in many forest systems throughout North America.
“I will have several wood samples, insect specimens and photographs to display what bark beetle damage looks like, and the landscape level effects bark beetles have. I will also have samples of wood damage caused by other wood boring beetles and insects. My table will focus widely on the subject of forest entomology and extend beyond beetle-fire interactions.”
Visitors, she said, can expect to leave with a clear understanding of what bark beetles are and what they do, as well as a deeper understanding of the importance of disturbance ecology in our temperate forests.
Assassin Flies
Charlotte Alberts, a fifth-year doctoral candidate, will display assassin flies and their relatives, as well as examples of prey they eat and/or mimic. Visitors can expect to learn about basic assassin fly ecology and evolution. Alberts studies the evolution of assassin flies (Diptera: Asilidae) and their relatives.
“Assassin flies are voracious predators on other insects and are able to overcome prey much larger than themselves,” she said. “Both adult and larval assassin flies are venomous. Their venom consists of neurotoxins that paralyze their prey, and digestive enzymes that allow assassin flies to consume their prey in a liquid form. These flies are incredibly diverse, ranging in size from 5-60mm, and can be found all over the world! With over 7,500 species, Asilidae is the third most specious family of flies. Despite assassin flies being very common, most people do not even know of their existence. This may be due to their impressive ability to mimic other insects, mainly wasps, and bees.”
For her thesis, she is trying to resolve the phylogenetic relationships of Asiloidea (Asilidae and their relatives) using Ultra Conserved Elements (UCEs), and morphology. "I am also interested in evolutionary trends of prey specificity within Asilidae, which may be one of the major driving forces leading to this family's diversity."
Bats
Ecologist Ann Holmes, a fourth-year doctoral student, is studying what insects that bats eat. "I will be talking about my research project that looks at insects eaten by bats in the Yolo Bypass. The insects eat crops such as rice, so bats provide a valuable service to farmers. Hungry bats can eat as much as their own body weight in insects each night."
"Visitors can expect to learn how DNA is used to detect insects in bat guano (poop)." "Insects in bat poop are hard to identify because they have been digested, but I can use DNA to determine which insects are there," she said. "We care about which insects bats eat because bats are natural pest controllers. With plenty of bats we can use less pesticide on farms and less mosquito repellent on ourselves."
Ants
Zachary Griebenow, a third-year doctoral student, will be showcasing or discussing specimens of the ant subfamily Leptanillinae, most of them male. “I will be showing specimens of the Leptanillinae under the microscope, emphasizing the great morphological diversity observed in males and talking about my systematic revision of the subfamily," he said. "In particular, I want to explain how the study of an extremely obscure group of ants can help us understand the process of evolution that has given rise to all organisms."
Forensic Entomology
Forensic entomologist Alex Dedmon, a sixth-year doctoral student, will display tools and text and explain what forensic entomology is all about. "My research focuses on insect succession. In forensic entomology, succession uses the patterns of insects that come and go from a body. These patterns help us estimate how long a person has been dead. Visitors can expect to learn about the many different ways insects can be used as evidence, and what that evidence tells us."
Other Open House Activities
The family craft activity will be painting rocks, which can be taken home or hidden around campus. "Hopefully some kind words on rocks found by random strangers can also make for a kinder better future,” said Yang.
In addition to meeting and chatting with the researchers, visitors can see insect specimens (including butterflies and moths), meet the critters in the live “petting zoo” (including Madagascar hissing cockroaches, walking sticks and tarantulas) and browse the gift shop, containing books, insect-themed t-shirts and sweatshirts, jewelry, insect-collecting equipment and insect-themed candy.
The Bohart Museum, directed by Professor Lynn Kimsey and founded by noted entomologist Richard M. Bohart (1913-2007), houses a global collection of nearly eight million specimens. It is also the home of the seventh largest insect collection in North America, and the California Insect Survey, a storehouse of insect biodiversity.
The insect museum is open to the public Mondays through Thursdays from 9 a.m. to noon and 1 to 5 p.m., except on holidays. More information on the Bohart Museum is available on the website at http://bohart.ucdavis.edu or by contacting (530) 752-0493 or bmuseum@ucdavis.edu.
- Author: Kathy Keatley Garvey
That would be the recent open house at the Bohart Museum of Entomology, University of California, Davis, on "Bark Beetles and Forest Health," coordinated by USDA Forest Service research entomologist/UC Davis affiliate Steve Seybold and his graduate and undergraduate students.
It was definitely a beetle invasion. You couldn't see the Bohart for the trees!
"It was a mixed conifer forest right out of the central Sierra Nevada,” Seybold commented.
“As of last winter, bark beetles had killed 102 million trees in California during the last drought period,” said Seybold, who is a lecturer with the UC Davis Entomology and Nematology. “Tree mortality in the western United States over the past 15 years caused by native bark beetles exceeded 21 million hectares, which surpasses all other disturbances, including fire.”
UC Davis Department of Design emeritus professor and environmental artist Ann Savageau, showcased her wood sculptures patterned with bark beetle galleries. Retired from UC Davis in 2014, she now works as a full-time studio artist.
Visitors marveled at the eight-foot trunk sections of mass-attacked conifers as the scientists peeled back bark to reveal larvae of bark beetles and wood borers in their galleries in the phloem and xylem. Visitors also learned about the development of bark beetle pheromones and their release devices, and the role of semiochemicals (behavioral chemicals) to lure and repel the beetles.
One display station zeroed in on the onslaught of invasive bark and wood boring beetles, including the walnut twig beetle, goldspotted oak borer, and polyphagous shot hole borer, all among California's 25 new invasive species.
The scientists warned that beetle-infested firewood can become a “Trojan horse” when campers unknowingly transport beetles from site to site and spread the pests.
Enlarged aerial photos of southern Sierra Nevada forests--taken by USDA Forest Service Aerial Survey Unit in May and August 2016--hammered home the havoc that bark beetles can and do wreak. Visitors also learned about bark beetles via a computer slide show, and looked at specimens of western pine beetle, pine engravers, and fir engravers through a scanning electron microscope (on loan from Hitachi to the museum). The microscope magnified the specimens 100 times.
A craft table near Ann Savageau's exhibit featured the family craft activity, "Bark Beetle Art." Children traced and colored bark beetle patterns on paper, and also colored bark beetle gallery patterns on wood samples. Then they hung their art as ornaments on "The Bark Beetle Tree," a white fir.
Entomologist Wade Spencer, a UC Davis undergraduate student and an associate at the Bohart Museum, enthralled the crowd by reading Vlasta van Kampen's children's book, “Beetle Bedlam,” about a bark beetle on trial for killing trees in the forest.
Despite the 107-degree temperatures, the open house drew some 110 visitors, representing Davis, Elk Grove, Fairfield, Pinecrest, Redding, Sacramento, South Lake Tahoe, Vacaville, Woodland, and other cities.
Assisting Seybold were Yigen Chen, formerly with the UC Davis Department of Entomology and Nematology and now with Gallo Wines in Modesto; UC Davis entomology graduate students Jackson Audley and Corwin Parker; UC Davis junior specialist Megan Siefker; UC Davis undergraduate student Crystal Homicz; and graduate student Irene Lona of California State University, Chico.
Representing the Bohart Museum were Lynn Kimsey, director of the Bohart and UC Davis professor of entomology; senior museum scientist Steve Heydon; Tabatha Yang, education and outreach coordinator; and Bohart associates/volunteers Greg Kareofelas, Wade Spencer, Chloe Stott. Riley Gilmartin, Joel Hernandez, Maia Lundy, amd Alex Nguyen.
Seybold credited Rob York, UC Berkeley Center for Forestry, Blodgett Forest Research Station. for providing infested tree and wood samples for the displays; Jeffrey W. Moore, USDA Forest Service R5 Forest Health Protection, Davis for providing the aerial imagery of California tree mortality; and Ross Gerrard, USDA Forest Service PSW Research Station, Davis, for providing the poster-sized photos and illustrations for the exhibit.
Want to attend the next Bohart Museum open house? It's from 1 to 4 p.m. on Sunday, Sept. 24 in Room 1124 of the Academic Surge Building, Crocker Lane. The theme is "Insects and U" and it's in keeping with the arrival of UC Davis students for the fall quarter. The open house, a family friendly event, is free and open to the public.
"This purposely coincides with UC Davis dorm move-in weekend," said Tabatha Yang. "Our target audience is new students and their families, but everyone is welcome. The focus is how to study insects at home and in school--any age."
Undergraduate advisor Brandy Fleming will be on hand (tabling) to talk about classes, careers, and fun with entomology.
Yang is also planning a display featuring cabbage white butterflies for educators.
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, walking sticks, praying mantids, and tarantulas. A gift shop, open year around, offers T-shirts, sweatshirts, books, jewelry, posters, insect-collecting equipment and insect-themed candy.
The insect 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.
For more information, email the bmuseum@ucdavis.edu or access the website or Facebook page.
- Author: Kathy Keatley Garvey
As of Friday noon, Aug. 25, there's also one tree.
It's a fir.
And no, it has nothing to do with the pending holiday season.
It's for the Bohart Museum's open house, “Bark Beetles and Trees, Forest Health in California," being organized by chemical ecologist Steve Seybold, a research entomologist with the USDA Forest Service, Pacific Southwest Research Station, Davis, and a lecturer/researcher with the UC Davis Department of Entomology and Nematology,
The open house, open to the public, with free admission and free parking, is set from 1 to 4 p.m., Sunday, Aug. 27 at the museum, located in Room 1124 of the Academic Surge Building, Crocker Lane.
“The Bohart Museum on Sunday will be Bark Beetle Forest Central,” said Tabatha Yang, education and outreach coordinator.
The attendees will learn a lot about the beetles that are attacking our forests.
“As of last winter, bark beetles had killed 102 million trees in California during the last drought period,” said Seybold, a Davis resident who holds a doctorate in entomology from UC Berkeley and a bachelor of science degree in forestry from the University of Wisconsin, Madison. “Tree mortality in the western USA over the past 15 years caused by native bark beetles exceeded 21 million hectares, which surpasses all other disturbances, including fire.”
Seybold is known for his pioneering research on the walnut twig beetle, Pityophthorus juglandis, associated with widespread mortality of black walnut in the western United States.
Said Seybold: “We are planning to have a series of four to five ‘stations' that illustrate the mass attack of native bark beetles on pine and fir trees; the biology and impact of invasive species of bark beetles and woodborers; and the flight trapping and chemical ecology of bark beetles. We are also planning some craft activities for kids that involve the gallery patterns that bark beetles etch on wood during their life cycles.”
They will be joined by local environmental artist Ann Savageau, a mixed-media artist whose work includes creating sculptures from wood with gallery patterns on it. Savageau, who retired as a professor of design from UC Davis in 2002, is now a full-time artist. She describes her work as dealing with :the natural world, human culture and their intersections."
Seybold's scientific crew at the Bohart Museum on Sunday will include be Yigen Chen, former research entomologist with the UC Davis Department of Entomology and Nematology and now with Gallo Wines in Modesto, Jackson Audley and Corwin Parker, UC Davis entomologist graduate students; Irene Lona, graduate student at California State University, Chico; Megan Siefker, UC Davis junior specialist; and Crystal Homicz, UC Davis, undergraduate student.
Numerous Bohart Museum scientists and volunteers also will participate. “We'll have a family craft project that will deal with the beetle gallery,” Yang said.
The Bohart Museum, directed by Lynn Kimsey, UC Davis professor of entomology, 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, offers 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. The website is http://bohart.ucdavis.edu/
- Author: Kathy Keatley Garvey
It will be "Bark Beetle Forest Central," says Tabatha Yang, education and outreach coordinator.
Think trees!
The old saying "You Can't See the Forest for the Trees" will basically turn into "You Can't See the Bohart for the Trees."
Steve Seybold, a research entomologist with the USDA Forest Service, Pacific Southwest Research Station, Davis, and a lecturer with the UC Davis Department of Entomology and Nematology, will present the open house, “Bark Beetles and Trees, Forest Health in California." The event is free and open to the public. The museum is located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus.
“As of last winter, bark beetles had killed 102 million trees in California during the last drought period,” said Seybold, a Davis resident who holds a doctorate in entomology from UC Berkeley and a bachelor of science degree in forestry from the University of Wisconsin, Madison. “Tree mortality in the western USA over the past 15 years caused by native bark beetles exceeded 21 million hectares, which surpasses all other disturbances, including fire.”
Seybold is known for his pioneering research on the walnut twig beetle, Pityophthorus juglandis, associated with widespread mortality of black walnut in the western United States.
Said Seybold: “We are planning to have a series of four to five ‘stations' that illustrate the mass attack of native bark beetles on pine and fir trees; the biology and impact of invasive species of bark beetles and woodborers; and the flight trapping and chemical ecology of bark beetles. We are also planning some craft activities for kids that involve the gallery patterns that bark beetles etch on wood during their life cycles.”
They will be joined by local environmental artist Ann Savageau, a mixed-media artist whose work includes creating sculptures from wood with gallery patterns on it. Savageau, who retired as a professor of design from UC Davis in 2002, is now a full-time artist. She describes her work as dealing with :the natural world, human culture and their intersections."
Seybold's scientific crew at the Bohart Museum on Sunday will include be Yigen Chen, former research entomologist with the UC Davis Department of Entomology and Nematology and now with Gallo Wines in Modesto, Jackson Audley and Corwin Parker, UC Davis entomologist graduate students; Irene Lona, graduate student at California State University, Chico; Megan Siefker, UC Davis junior specialist; and Crystal Homicz, UC Davis, undergraduate student.
Numerous Bohart Museum scientists and volunteers also will participate. “We'll have a family craft project that will deal with the beetle gallery,” Yang said.
The Bohart Museum, directed by Lynn Kimsey, UC Davis professor of entomology, 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, offers 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. The website is http://bohart.ucdavis.edu/