- Author: Kathy Keatley Garvey
Happy Presidents' Day.
It's day we honor not only George Washington and Abraham Lincoln but all the men (no women yet!) who have served as President of the United States.
"The federal holiday honoring Washington was originally implemented by an Act of Congress in 1879 for government offices in Washington and expanded in 1885 to include all federal offices," according to Wikipedia. "As the first federal holiday to honor an American president, the holiday was celebrated on Washington's birthday under the Gregorian calendar, Feb. 22. On Jan. 1, 1971, the federal holiday was shifted to the third Monday in February by the Uniform Monday Holiday Act. This places it between February 15 and 21, which makes 'Washington's Birthday' something of a misnomer, since it never occurs on Washington's actual birthday, Feb. 22."
"A rough analog of this phenomenon can be seen in Commonwealth realms, where the reigning monarch's official birthday is celebrated without regard to their actual date of birth."
There you have it.
And speaking of monarchs and Presidents' Day, it's a good time to post a monarch on the American flag. Danaus plexippus reigns supreme in the world of butterflies, in that it's arguably the most recognized butterfly.
The embattled monarch--some folks want to see it listed as threatened or endangered--will be the subject of a session hosted by the Environmental Defense Fund on Feb. 28 at the University of California, Davis. It's by invitation only. But one of the speakers is Art Shapiro, UC Davis distinguished professor of evolution and ecology.
Shapiro, who has monitored the entire butterfly faunas (including monarchs) at 10 locations along I-80 coordinator for more than four decades, just published a commentary in the Davis Enterprise headlined "So the Monarch Is Endangered--Now What?"
He began with "So the monarch butterfly is in trouble and various folks, including the editorial board of the Sacramento Bee, want California or the United States, or both, to declare it endangered or at least threatened (Bee editorial Feb. 5). Great, then what?
"The fact is, nobody can answer that question competently."
"There is no disputing the facts: Monarch butterfly populations in California have dropped catastrophically," he wrote. "Based on counts of adults overwintering along the coast, numbers have dropped from some 4.5 million in the 1980s to a mere 28,429 this year. At one site, Bolinas, numbers dropped 90 percent in one year from 12,360 in 2017 to 1,256 this year."
"But the decline has not been linear or monotonic, and it is very poorly understood."
He noted: "Conservation organizations are promoting lists of things private citizens and organizations can do to help “save the monarch.” The most-often-repeated one is to plant milkweed, its larval host plant. But there is absolutely no evidence that there is any milkweed shortage in California, let alone that such a shortage is driving monarch declines."
Shapiro went on to write that "there are huge holes in our knowledge of basic monarch biology, and those translate into our inability to say why monarchs are in decline."
Shapiro noted in his commentary that "We have been stuck with using the winter censuses, which are easy to generate, as our measure of population size. But the winter numbers are the sum of everything that happened during the year, which is hidden from our view except very locally. One can do statistical analyses with them and they will give you some kind of an answer, but will it tell us anything used in interpreting reality?"
"The point of giving species protection under Endangered Species legislation is to provide a legal umbrella to encourage actions that will promote species recovery. Most endangered species have discrete populations and their critical habitat and resources can thus be protected. The monarch is different. There is no point in declaring it threatened or endangered if that, like planting milkweed, is just a feel-good action unlikely to translate into any benefit to the species."
As for the meeting at UC Davis on Feb. 28, "its first order of business," Shapiro believes, "should be to decide what we need to know that we don't know in order to take meaningful action on the monarch (and by extension, to help the rest of our imperiled butterfly fauna)."
Stay tuned.
- Author: Kathy Keatley Garvey
They're featured prominently on the newly available Bohart Museum of Entomology hooded sweatshirts, the work of artist Charlotte Herbert Alberts and designer Fran Keller.
Tardigrades can survive in many extreme conditions, including space, and they're sure to survive in the Bohart--unless they're all gone soon.
Available in red, gray and black, from sizes extra small to extra extra large, they'll be offered in the Bohart Museum gift shop during the UC Davis Biodiversity Museum Day on Saturday, Feb. 16. Proceeds from the sales benefit the insect museum's educational activities.
The artist? Charlotte Herbert Alberts, an entomology doctoral candidate who studies Asilidae (Assassin flies) with her major professor, Lynn Kimsey, director of the Bohart and UC Davis professor of entomology. Alberts cleverly drew a "Bohart Republic" water bear flag, a take-off of the California Bear Flag, except hers features an entomologist, insect net in hand, riding a huge tardigrade.
The front features a tardigrade face inside a Bohart logo, a design by Fran Keller, an assistant professor at Folsom Lake College. She received her doctorate in entomology from UC Davis, studying with Kimsey and designed many of the shirts, sweatshirts and posters in the Bohart Museum's gift shop.
UC Davis Biodiversity Museum Day
The Bohart is gearing up for the eighth annual UC Davis Biodiversity Day, a science-based event that's free and family friendly. Thirteen museums or collections will be open Saturday. It all begins at 9 a.m. and concludes at 4 p.m. Maps are available at http://biodiversitymuseumday.ucdavis.edu/.
- Arboretum and Public Garden, Good Life Garden, next to the Robert Mondavi Institute, 392 Old Davis Road, on campus
- Bohart Museum of Entomology, Room 1124 of the Academic Surge Building, Crocker Lane
- California Raptor Center, 340 Equine Lane, off Old Davis Road
- Museum of Wildlife and Fish Biology, Room 1394, Academic Surge Building, Crocker Lane
- Paleontology Collection, Earth and Physical Sciences Building, 434 LaRue Road
- Phaff Yeast Culture Collection, Robert Mondavi Institute of Wine and Food Science, 392 Old Davis Road, on campus
- Viticulture and Enology Culture Collection, Robert Mondavi Institute of Wine and Food Science, 392 Old Davis Road, on campus
The following will be open from noon to 4 p.m.:
- Anthropology Museum, 328 Young Hall and grounds
- Botanical Conservatory, Greenhouses along Kleiber Hall Drive
- Center for Plant Diversity, Sciences Laboratory Building, off Kleiber Hall Drive
- Häagen-Dazs Honey Bee Haven, Bee Biology Road, off Hopkins Road (take West Hutchison Drive to Hopkins)
- Nematode Collection, Sciences Laboratory Building, off Kleiber Hall Drive
- Marine Invertebrate Collection, Sciences Laboratory Building, off Kleiber Hall Drive
All participating museums and collections have active education and outreach programs, but the collections are not always accessible to the public.
- Author: Kathy Keatley Garvey
Remember receiving valentine cards that read "Bee My Valentine?"
Well, every day can be Valentine's Day when there are bees in your garden.
We captured this image several years ago of a queen bumble bee, Bombus vosnesenskii, nectaring on a spiked floral purple plant, Salvia indigo spires (Salvia farinacea x S. farinacea). She had just emerged from her winter hibernation on a sunny day in November. The site: the Sonoma Cornerstone pollinator garden of Kate Frey. She's the co-author of The Bee-Friendly Garden (with UC San Francisco professor Gretchen LeBuhn), and a world-class garden designer and pollinator advocate.
It wasn't Valentine's Day, but then again, yes, it was!
Every day is Valentine's Day when there are bees in your garden.
Bee my valentine!
- Author: Kathy Keatley Garvey
Bring your family. Bring your friends. Bring your camera.
The science-based event, free and family friendly, begins at 9 a.m. and concludes at 4 p.m. Thirteen museums or collections will be open in a celebration of the diversity of life, and an opportunity to talk to the scientists. Hours will range from 9 a.m. to 1 p.m. for some collections, and from 12 noon to 4 p.m. for others.
The UC Davis Department of Entomology is showcasing
- The Bohart Museum of Entomology, open from 9 a.m. to 1 p.m. and located in Room 1124 of the Academic Surge Building on Crocker Lane
- The Nematode Collection, open from 12 noon to 4 p.m. and located in the Sciences Laboratory, off Kleiber Hall Drive
- The Häagen-Dazs Honey Bee Haven, open from 12 noon to 4 p.m. and located on Bee Biology Road, west of the central campus.
The nematode collection will feature both live and slide-mounted nematodes, as well as jars of larger parasites. Nematodes, also called worms, are described as “elongated cylindrical worms parasitic in animals or plants or free-living in soil or water. They exist in almost every known environment.”
At the Honey Bee Haven, visitors can learn about bees and the plants they pollinate. Folks can engage in a catch-and-release activity, using vacuum-like devices. An almond tasting event is also planned. The garden, installed in the fall of 2009, is located next to the Harry H. Laidlaw Jr. Honey Bee Research Facility.
These seven collections will be open from 9 a.m. to 1 p.m.:
- Arboretum and Public Garden, Good Life Garden, next to the Robert Mondavi Institute, 392 Old Davis Road, on campus
- Bohart Museum of Entomology, Room 1124 of the Academic Surge Building, Crocker Lane
- California Raptor Center, 340 Equine Lane, off Old Davis Road
- Museum of Wildlife and Fish Biology, Room 1394, Academic Surge Building, Crocker Lane
- Paleontology Collection, Earth and Physical Sciences Building, 434 LaRue Road
- Phaff Yeast Culture Collection, Robert Mondavi Institute of Wine and Food Science, 392 Old Davis Road, on campus
- Viticulture and Enology Culture Collection, Robert Mondavi Institute of Wine and Food Science, 392 Old Davis Road, on campus
The following will be open from noon to 4 p.m.:
- Anthropology Museum, 328 Young Hall and grounds
- Botanical Conservatory, Greenhouses along Kleiber Hall Drive
- Center for Plant Diversity, Sciences Laboratory Building, off Kleiber Hall Drive
- Häagen-Dazs Honey Bee Haven, Bee Biology Road, off Hopkins Road (take West Hutchison Drive to Hopkins)
- Nematode Collection, Sciences Laboratory Building, off Kleiber Hall Drive
- Marine Invertebrate Collection, Sciences Laboratory Building, off Kleiber Hall Drive
All participating museums and collections have active education and outreach programs, but the collections are not always accessible to the public. Maps, signs and guides will be available at all the collections, and also online at http://biodiversitymuseumday.edu, and on social media, including Facebook and Twitter, @BioDivDay.
- Author: Kathy Keatley Garvey
Totally fascinating.
Tsetse fly expert Geoffrey Attardo, a medical entomologist and assistant professor with the UC Davis Department of Entomology and Nematology, drew the attention of Pulitzer-Prize winning science writer Natalie Angier who penned the article, "Everywhere in the Animal Kingdom, Followers of the Milky Way" (subhead: "As scientists learn more about milk's evolution and compositional variations, they are redefining what used to be a signature characteristic of mammals.")
Her lede: "Most female flies take a low-rent approach to parenthood, depositing scores of seed-sized eggs in the trash or on pet scat to hatch, leaving the larvae to fend for themselves."
"Not so the female tsetse fly. She gestates her young internally, one at a time, and gives birth to them live. When each extravagantly pampered offspring pulls free of her uterus after nine days, fly mother and child are pretty much the same size."
Then she quoted the UC Davis medical entomologist:
“It's the equivalent of giving birth to an 18-year-old,” said Geoffrey Attardo, an entomologist who studies tsetse flies at the University of California, Davis.
Attardo focuses his research on numerous aspects of the physiology of tsetse fly reproduction, with the goal to identify and understand key aspects of its reproductive biology. He joined the UC Davis Department of Entomology and Nematology in 2017 from tje Yale University School of Public Health, New Haven, Conn., where he researched tsetse flies in the lab of Serap Aksoy.
In terms of "fascinating physiological adaptations," Attardo considers the tsetse fly "one of the champions of the insect world!" As he explained to us in a 2017 news story: "In addition to being vectors of a deadly disease, Trypanosomiasis, these flies have undergone amazing alterations to their physiology relative to other insects. Some examples of this are their ability feed exclusively on blood, their obligate relationship with a bacterial symbiont, the fact that they lactate and that they give birth to fully developed larval offspring."
"The opportunity to study the adaptations these flies have made is like opening a toy chest for an insect physiologist. My work in tsetse has focused on the molecular biology underlying the adaptations associated with the development of lactation, symbiosis, male and female mating interactions/physiology and nutrient metabolism and mobilization.”
Attardo's published research is drawing national and international attention, as are his incredible images of tsetse flies. He won the 2010 Fogarty Grantee Photo Contest with an image of a tsetse fly. The Yale School of Public Health magazine featured his images on “An Eye for the Tsetse Fly.” The Los Angeles Times published his remarkable video (in 2014) of a tsetse fly giving birth. Also, see his portraits of the tsetse fly on Live Science, published in 2014.
In her New York Times article, Angier points out that "Only in the class Mammalia do all member species nurse their young, yet evolutionary biologists now believe that the roots of mammalian lactation date back more than 300 million years, a good 100 million years before the first mammals appeared."
Who knew?
And while on the subject of tsetse flies, be sure to read the September 2016 article, "Tsetse Flies Are Strange and Dangerous," by Kevin Fitzgerald in Entomology Today, a publication of the Entomological Society of America. Fitzgerald featured the work of Attardo and posted one of his photos.
