How do you keep ants off your hummingbird feeders?
That was a question a Bug Squad reader asked: "I was wondering if you had any tips on how to keep ants off and out of the hummingbird feeder? I've put Vaseline on the line it hangs from, and that helped for a long time. But now I have a different type of and, similar to a big red and who is not deterred, they just walk right over the Vaseline. I've even freshened it up. Any ideas?"
We asked "Ant Man" Brendon Boudinot, an authority on ants--and who just received his doctorate in entomology, studying with major professor Phil Ward of the UC Davis Department of Entomology and Nematology.
Boudinot's response: "Teflon. In the ant research community, this is one of our favorite surface protectors against ants, as they cannot get a grip. Alternatively, Tanglefoot would work, but may also be dangerous for the birds if they come into contact with it. Teflon will need to be reapplied after there is evidence that its efficiency is being reduced, often due to exposure to water or extended humidity. The easiest thing to do will be to find the trail and give the surface a good wash, as the chemical trail will be removed. Ants are not able to remember the location of food sources without their trails. They will have to be lucky to rediscover the feeder."
The UC Statewide Integrated Pest Management Program (UC IPM) offers information on ants in its Pest Notes section, "How to Manage Pests, Pests of Homes, Structures, People, and Pets."
"Ant management requires diligent efforts and the combined use of mechanical, cultural, sanitation, and often chemical control methods. It is unrealistic and impractical to attempt to totally eliminate ants from an outdoor area. Focus your management efforts on excluding ants from buildings or valuable plants and eliminating their food and water sources. Reducing outdoor sources of ants near buildings will reduce the likelihood of ants coming indoors."
"Remember that ants often play a beneficial role in the garden. Become aware of the seasonal cycle of ants in your area and be prepared for annual invasions by caulking and baiting before the influx. Different species of ants respond to management practices differently. For management information specific to a particular species, see the Key to Identifying Common Household Ants. See also the videos related to ant management in the home." (See more information on management of ants.)
On another note, we recently received a curious email about ants that began with: "I hope this mail finds you and your family well and healthy regarding the current pandemic situation. I am sending you this email regarding the OUTRAGEOUS ASSUMPTION THAT YOU IMPLY THAT ANTS MIGHT HAVE A REMOTE RESEMBLANCE TO FEELINGS."
Who me? I rarely write about ants or photograph them (they seem to avoid me and my camera). To my knowledge, I've never thought, written or implied that ants "have a remote resemblance to feelings."
"Ants may not be sentimental," Boudinot told us, "but they sure respond to noxious stimuli in ways which indicate that their little neural systems communicate something which would roughly correspond to the sensation of pain. Indeed, there may be some basic inherited molecular link between ant, human, and earthworm aversive feelings."
Meanwhile, I'm heading back out to the family pollinator garden to fill our empty hummingbird feeders. Neither a hummer nor ant in sight...and no remote resemblance to feelings, either....
When doctoral candidate and entomologist extraordinaire Brendon Boudinot delivered his exit seminar on ants to the UC Davis Department of Entomology and Nematology, he drew acclaim, admiration and applause.
Boudinot, whose peers marvel at his expertise on all-things-ants and, indeed, all-things-entomological, greeted a standing-room only crowd in Room 122 of Briggs Hall.
If any ants had been in the room, they would have stood at attention, too.
Major professor Phil Ward praised Boudinot's intellectual curiosity, his contributions to science and his service to the department and campus. "He is an incredible fireball of energy, enthusiasm and intellectual curiosity," Ward said. "He will be sorely missed."
Boudinot, who excels in academics, leadership, public service activities, professional activities, and scientific publications, won the 2019 John Henry Comstock Award from the Pacific Branch, Entomological Society of America (PBESA). The Comstock award is PBESA's highest graduate student award in a region that encompasses 11 states, U.S. territories, and parts of Canada and Mexico.
Just a few of Boudinot's accomplishments:
- Published several landmark papers on insect systematics, including research in the journal Arthropod Structure and Development (in which he presented a comprehensive theory of genital homologies across all Hexapoda). Scientists describe the work as "classic."
- Received multiple “President's Prize” awards for his research presentations at the Entomological Society of America (ESA) meetings. He organized the ESA symposium, “Evolutionary and Phylogenetic Morphology,” at the 2018 meeting in Vancouver, B.C. , and delivered a presentation on “Male Ants: Past, Present and Prospects” at the 2016 International Congress of Entomology meeting in Orlando, Fla.
- Served on three of the UC Davis Linnaean Games teams that won national or international ESA championships. The Linnaean Games are a lively question-and-answer, college bowl-style competition on entomological facts played between university-sponsored student teams.
- Served as president of the UC Davis Entomology Graduate Student Association from 2016 to 2019.
- Co-chaired the department's Picnic Day activities (part of the annual campuswide Picnic Day celebration) with forensic entomologist Robert Kimsey for several years. Boudinot also did double duty as "The Bug Doctor," fielding questions from the general public.
Boudinot titled his exit seminar, "Abdomens and Ants: Evolutionary and Phylogenetic Morphology of the Insects." The title prompted Ward to quip "Here's Brendon talking about ants, abdomens and the meaning of life."
Boudinot divided his talk into two parts: (1) from the ocean onto land, from the land into the sky, and (2) from the sky back to the land (ants).
"Between about 410 to 480 million years ago, there was an event where the ancestor of the insects that we think of as insects today, not only had moved onto land, but gained numerous adaptations for land," Boudinot began. "So this first part of this talk is going to be a comparison of these wingless insects."
Pointing out that insects have a head, a thorax, and abdomen, Boudinot asked: "Why do we care about the abdomen? Okay, we don't maybe generally care about the abdomen and maybe we don't care that much about insect genitalia, but I care about insect genitalia and a lot of insects do, too."
The crowd, knowing Boudinot's interest in ant genitalia research and knowing insects' interest in reproduction, erupted into laughter.
That's what doctoral candidate and ant specialist Brendon Boudinot of the Phil Ward lab, UC Davis Department of Entomology and Nematology, will do when he presents his exit seminar, "Abdomens and Ants: Evolutionary and Phylogenetic Morphology of the Insects" from 4:10 to 5 p.m., Wednesday, March 4 in 122 Briggs Hall on Kleiber Hall Drive, UC Davis campus.
Boudinot, who won the 2019 John Henry Comstock Award, the highest graduate student award given by the Pacific Branch, Entomological Society of America (PBESA), joined the UC Davis entomology graduate school program in 2014.
Abstract of his talk: "It is widely yet loosely agreed that the study of morphology--body form, structure and function--is undergoing a post-genomic revival, cautiously labeled 'phenomics' among active practitioners. I argue that the full reality of phenomics has yet to be realized, and that functional anatomy is the linchpin for the meaningful use of morphological data to understand evolution."
"In this seminar, I will present two case studies from my dissertation. The first will focus on reproductive anatomy in the context of the major transitions of insects from a marine, crustacean ancestor to the epically abundant diversity of wing-bearing species. The second and ongoing study combines more than 300,000 point-observations of morphology for 431 extinct and extant species with genomic sequence data to reconstruct the sequence of evolution leading to the living ants. I will introduce the audience to several extinct lineages of ants, including a new family of wasp-ant intermediates, and present functional morphological reconstructions of the ancestors of all ants, living and extinct."
In nominating Boudinot for the Comstock award, Steve Nadler, professor and chair of the UC Davis Department of Entomology, wrote: “A highly respected scientist, teacher and leader with a keen intellect, unbridled enthusiasm, and an incredible penchant for public service, Brendon maintains a 4.00 grade point average; has published 12 outstanding publications on insect systematics (some are landmarks or ground-breaking publications); and engages in exceptional academic, student and professional activities."
Active in PBESA and the Entomological Society of America (ESA), Boudinot received multiple “President's Prize” awards for his research presentations at national ESA meetings. He organized the ESA symposium, “Evolutionary and Phylogenetic Morphology,” at the 2018 meeting in Vancouver, B.C. , and delivered a presentation on “Male Ants: Past, Present and Prospects” at the 2016 International Congress of Entomology meeting in Orlando, Fla.
Boudinot served on—and anchored—three of the UC Davis Linnaean Games teams that won national or international ESA championships. The Linnaean Games are a lively question-and-answer, college bowl-style competition on entomological facts played between university-sponsored student teams. He has served as president of the UC Davis Entomology Graduate Student Association since 2006, and is active in the campuswide UC Davis Picnic Day; he has co-chaired the department's Picnic Day Committee since 2017.
Boudinot will be among the speakers at an innovative UC Davis symposium on Saving a Bug's Life: Legal Solutions to Combat Insect Biodiversity Decline and the Sixth Mass Extinction, set from 8:30 a.m. to 6:30 p.m., Friday, March 6 in Room 1001 of the School of Law, Mrak Hall. The event, sponsored by UC Davis Environmental Law Society (ELS), will bring together law and science to address insect biodiversity decline. It is free and open to the public. See official program. (RSVP here or on this Facebook page.)
At the March 6 symposium, Boudinot will be part of a three-member panel from 9:50 to 10:55 a.m. on "The Science of Biodiversity Decline." He will be joined by Angela Laws, endangered species conservation biologist, Xerces Society for Invertebrate Conservation; butterfly specialist Arthur Shapiro, distinguished professor, UC Davis Department of Evolution and Ecology; and Lynn Kimsey, UC Davis professor of entomology, director of the Bohart Museum of Entomology and director of the Center for Biosystematics.
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:
“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.
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."
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."
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 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 email@example.com.
They draw the attention of curious kids--some poke them with a stick, stomp on them, or race their bicycles over them. Some peer into the holes, trying to see the insects inside.
When Corrie Moreau was a young girl, she no doubt was one of the kids who peered inside.
She's now a noted evolutionary biologist and entomologist (specialty myrmecology, the study of ants).
Moreau will present a UC Davis Department of Entomology and Nematology seminar, "Piecing Together the Puzzle to Understand the Evolution of the Ants: Macroevolution to Microbiomes" from 4:10 to 5 p.m., Wednesday, Jan. 15 in 122 Briggs Hall, Kleiber Hall Drive.
Moreau is the Moser Professor of Biosystematics and Biodiversity, Departments of Entomology and Ecology and Evolutionary Biology at Cornell, University, Ithaca, N.Y. and the curator of the Cornell University Insect Collection.
"Moreau and colleagues were the first to establish the origin of the ants at 140 million years ago using molecular sequence data (40 million years older than previous estimates), and that the diversification of the ants coincided with the rise of the flowering plants (angiosperms)," according to an entry in Wikipedia. "In addition, Moreau and Charles D. Bell showed that the tropics have been and continue to be important for the evolution of the ants. Moreau and colleagues have demonstrated the importance of gut-associated bacteria in the evolutionary and ecological success of ants through targeted bacterial and microbiome sequencing, including showing that bacterial gut symbionts are tightly linked with the evolution of herbivory in ants."
Her honors are many and widespread. In 2018 she was elected a fellow of the American Association for the Advancement of Science. Also in 2018, she was featured in National Geographic as a "Woman of Impact." In 2015, she was included in "15 Brilliant Women Bridging the Gender Gap in Science."
A native of New Orleans, Moreau holds degrees (bachelor and master's) from San Francisco State University and a doctorate in biology from Harvard University (2007). At Harvard, she studied with major professors E. O. Wilson and Naomi Pierce. Wilson featured her in his 2013 book, Letter to a Young Scientist.
"There was no bravado in Corrie, no trace of overweening pride, no pretension," Wilson wrote. "The story of Corrie Saux Moreau's ambitious undertaking is one I feel especially important to bring to you. It suggests that courage in science born of self-confidence (without arrogance!), a willingness to take a risk but with resilience, a lack of fear of authority, a set of mind that prepares you to take a new direction if thwarted, are of great value – win or lose."
Moreau will cover a lot of ground in her UC Davis talk. "To fully understand the macro evolutionary factors that have promoted the diversification and persistence of biological diversity, varied tools and disciplines must be integrated," she says in her abstract. "By combining data from several fields, including molecular phylogenetics/phylogenomics, comparative genomics, biogeographic range reconstruction, stable isotyope analyses, and microbial community sequencing to study the evolutionary history of the insects, we are beginning to understand the drivers of speciation and the interconnectedness of life. Comparative phylogenetic analysis reveals the interconnectedness of ants and plants and that ants diversified after the rise of the angiosperms. Comparative genomics has permitted the exploration of the role of symbiosis on genome evolution and behavioral gene evolution demonstrating that Red Queen dynamics are at play in obligate mutualisms..."
"Microbial contributions to ants are not limited to diet enrichment," she says, "and we find evidence for their role in cuticle formation. These multiple lines of evidence are illuminating a more complete picture of ant evolution and providing novel insights into the role that symbiosis plays to promote biological diversity."
UC Davis graduate student Marshall McMunn of the Phil Ward lab is the host. Community ecologist Rachel Vannette, assistant professor (firstname.lastname@example.org), coordinates the weekly seminars. See seminar schedule.