Posts Tagged: Matan Shelomi
Well, why wouldn't anyone NOT want to? That's the question we ought to ask.
Enter doctoral candidate Matan Shelomi of the UC Davis Department of Entomology and Nematology. He will present his exit seminar on "Digestive Physiology of the Phasmatodea" on Wednesday, March 5 from 12:10 to 1 p.m. in 122 Briggs Hall, UC Davis campus. His seminar is scheduled to be video-taped for later posting on UCTV.
For a preview of his work, watch Shelomi's phdcomics.com video; he cleverly explains his complicated research in two minutes. It's a classic Matan Shelomi.
Shelomi, who studies with major professor Lynn Kimsey, director of the Bohart Museum of Entomology and UC Davis professor of entomology, will receive his doctorate this spring and will then seek a postdoctoral position.
What will he be covering in his seminar?
Shelomi received his bachelor's degree in organismic and evolutionary biology from Harvard University in 2009, and immediately after, enrolled in graduate school at UC Davis.
His work in Davis is funded by the National Science Foundation's Graduate Research Fellowship program. Twice he has won the National Science Foundation's East Asia and Pacific Summer Institutes' Fellowship: once to work in the National Institute of Agrobiological Sciences in Tsukuba, Japan, and once to work in Academia Sinica in Taipei, Taiwan.
Shelomi served as a teaching assistant for Bob Kimsey's forensic entomology class. In addition, he co-taught a freshman seminar with Lynn Kimsey on "Evolution, Creationism, and Intelligent Design." He has guest-lectured for Entomology 10 "Natural History of Insects"; Entomology 100 "Introduction to Entomology"; and Entomology 102 "Insect Physiology."
He has presented at numerous meetings of the Entomological Society of America (ESA) and the Pacific Branch of the Entomological Society of America (PBESA) and organized or co-organized four symposia at those meetings. He participates in the ESA's Linnaean Games and Student Debate teams. For his work with ESA and outside it, he won PBESA's John Henry Comstock Award in 2013.
There's more, much more. Shelomi presented a workshop at the 2012 International Conference on Science in Society, and received first place for his talk this past summer at the International Congress of Orthopterology in Kunming, China. He has published his research in number of peer-reviewed journals.
The doctoral candidate's work has been spotlighted in the Sacramento Bee, California Aggie, DavisPatch, plus blogs and vlogs like LiveScience, PHD TV, and Breaking Bio. In addition, Shelomi answers entomology and biology questions on Quora.com, where he has been a top writer for two consecutive years. Huffington Post and Slate printed some of his Quora answers. You might remember that he won a "Shorty" (social media) award for his post "If you injure a bug, should you kill it or let it live?"
Lynn Kimsey says she doesn't know when he finds time to sleep.
Frankly, we don't, either.
- UC Davis Debate Team Wins Top Honors at ESA
- Art Exhibition at UC Davis
- Matan Shelomi's Research Presentation in China
This is the insect that Matan Shelomi studies. (Photo by Kathy Keatley Garvey)
We know that honey bees work hard. They forage for food within a four-mile range of their hive. They can fly up to 15 miles per hour, and their wings can beat about 200 times per second, or 12,000 beats per minute. Sometimes they'll visit 50 to 100 flowers on a collection trip. No wonder worker bees live only four to six weeks during their peak season. They literally work themselves to death.
Matan Shelomi, doctoral candidate in entomology at the University of California, Davis, responded. He answers scores of questions on Quora. (He won a Shorty award for his answer to "If you injure a bug, should you kill it or let it live?”).
Shelomi took the bee question to heart.
"Nope," he wrote. "No blood vessels."
"A heart attack is when fatty deposits, clots, etc. block the coronary artery that leads to the heart muscle. Blood flow to the heart muscle itself (as opposed to the pumping chambers) stops, so the muscle dies and the heart stops beating. So to have a heart attack, you need a heart and arteries."
"Insects have a heart, sometimes, but no arteries or veins. They have an open circulatory system: all their organs just float in a goo called 'hemolymph' that is a combination of lymph and blood. Some insects, bees included, have a heart and an aorta (the vessel leading out of the heart) that pumps the blood and gives it some semblance of direction (from the back of the insect to the front), but beyond that there is no circulatory system. The heart floats in the hemolymph along with everything else. No way to stop it from receiving blood flow, because it's surrounded by it.
"Furthermore, unlike human blood, insect blood doesn't carry oxygen. They have a special network of tubes called trachea that provide oxygen: think of it having air vessels go from your lungs all throughout your body instead of blood vessels. Conceivably the trachea leading to an insect heart could all get blocked by something from the outside, which would be the closest thing to a 'heart attack' in an insect, but there's no record of that happening and its unlikely anyway. So, nope, no insect can have a heart attack. Scare them to your heart's content."
So, this month being "American Heart Month" and all, we don't have to worry about honey bees having heart attacks. All drones (male bees), however, pay the ultimate price when they mate with a queen. During the in-flight mating process, parts of the male anatomy are ripped out and they die.
Honey bee heading toward rock purslane, Calandrinia grandiflora. (Photo by Kathy Keatley Garvey)
Most of us remember the old nursery rhyme, "Good night, sleep tight, and don't let the bed bugs bite," and vow to do everything we can to avoid any blood-letting.
Whether we call them "blood suckers," "menace in the mattress," or "human parasites," it's not cool to be bitten by bed bugs.
"Bed bug biting," however, is not part of their job descriptions.
The crowd watched in awe as the reddish-brown blood suckers turned from flat to bulging. The insects, Cimex lectularius, are "visually adorable," Wishon said, noting that they are pests but they don't spread diseases. She keeps two colonies in Briggs Hall for research purposes.
Several visitors told of their personal experiences with bed bugs--in their hotels and homes, and in their bedding and baggage.
Wishon made sure no one took any home.
For more information on bed bugs, check out the Entomological Society of America (ESA) website on bed bug resources. ESA includes the UC Statewide Integrated Pest Management Program (UC IPM). Another good source is the relatively new University of Florida bed bug site.
"Despite their name, bed bugs can infest areas other than beds," according to the University of Florida website. "They tend to locate in cracks and crevices, such as behinds baseboards, wall outlets, and wallpaper; between bed joints, slats, and dresser drawers; and along mattress seams and in linens and clothes. Most bed bug infestations occur in the home, along with hotels, dormitories, and cruise ships. Bed bugs easily transfer from one site to another through infested belongings like clothes, suitcases, second-hand furniture, beds, and bedding."
Forceps held by Danielle Wishon zero in on a bed bug to be fed. (Photo by Kathy Keatley Garvey)
Bed bug scurries away after taking a blood meal. (Photo by Kathy Keatley Garvey)
Two bed bugs on Danielle Wishon's arm. (Photo by Kathy Keatley Garvey)
Danielle Wishon (foreground at left) answers questions. (Photo by Kathy Keatley Garvey)
"Would the extinction of honey bees lead directly to the extinction of humans?"
That's a recent question posed on Quora, where folks can ask questions and receive answers.
The answer is "no."
"We are a resilient species that existed before beekeeping and will exist after it… but our cuisine will be very different," wrote Matan Shelomi, a Harvard alumnus and UC Davis graduate student seeking his doctorate at the University of California, Davis.
"Assuming native bees and other pollinators do not take over the job of the honey bee Apis mellifera, many of our favorite fruits and vegetables will cease to exist, or will require the very labor intensive manual pollination we see in parts of China," Shelomi noted. "Kiss almonds goodbye, for example. Staple crops like wheat, corn, and rice are not bee pollinated, however, so starvation won't be an issue."
Shelomi, who has received international recognition for his answers on Quora, is "right on," said Extension apiculturist Eric Mussen of the UC Davis Department of Entomology and Nematology.
"We've not always had honey bees here," Mussen pointed out. Indeed, the European colonists brought the honey bee to what is now Virginia in 1622. The Native American Indians had no honey bees, but they did have lots of other pollinators, including native bees. (We Californians did not obtain the services of the honey bee in our state until 1853; that's when the first honey bees arrived.)
Unfortunately, people are falsey quoting Albert Einstein as saying "If the bee disappears from the surface of the earth, man would have no more than four years to live.” Al Gore never invented the Internet, and Albert Einstein never said that about bees.
Without honey bees, our menu choices would be much different. But would the human race become extinct?
A honey bee heading toward almond blossoms. (Photo by Kathy Keatley Garvey)
So begins Matan Shelomi, Ph.D. candidate in entomology at the University of California, Davis, in a creative video posted on the popular PHD TV website.
It's a compelling site that showcases the work of Ph.D students. In this case, Shelomi is allocated two minutes to describe his work--why he studies walking sticks. There aren't that many doctoral candidates who can describe their thesis in two minutes--and so engagingly!
What's PHD TV all about? As its website says, it "aims to illustrate and communicate the ideas, stories and personalities of researchers, scientists and scholars worldwide in creative, compelling and truthful ways. We believe there is a gap between scientists and academics and how the public perceives what they do and who they are."
Shelomi, who received his bachelor's degree in organismic and evolutionary biology from Harvard University, studies with major professor Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at UC Davis.
One of the top writers on the Quora site, Shelomi won a Shorty award last year for his answer to an insect question. He's also engaged in unusual research, such as "Cutting Bergmann's Rule Down to Size" and taking a poke at Pokémon (with two other entomologists).
In his PHD TV piece, titled "The Wild World of Insect Digestion," Shelomi explains why "you should go with your gut" and "follow your heart."
The video is so incredible that when when you finish watching it, you may just want to join Shelomi in studying walking sticks.
Or at least check out the stick insects walking around in the Bohart Museum...
A walking stick at the Bohart Museum of Entomology. (Photo by Kathy Keatley Garvey)