Posts Tagged: Robbin Thorp
Bumble bees and spiders don't mix, you say?
Well, they will at the Bohart Museum of Entomology's open house from 1 to 4 p.m., Saturday, July 26. The family-centered event, free and open to the public, takes place in Room 1124 of the Academic Surge building on Crocker Lane, UC Davis campus.
Actually the theme is about spiders: "Arachnids: Awesome or Awful?" There you'll see black widow spiders, jumping spiders, cellar spiders and the like. But you don't have to "like" them as you do posts on Facebook!
You can also learn about bumble bees. Native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis, will be one of the tour guides. Thorp co-authored the newly published Bumble Bees of North America: An Identification Guide, which is available in the Bohart gift shop. He can autograph your book and answer questions about how to attract bees to your garden.
Thorp was recently interviewed by Tom Oder of the Mother Nature Network on how to garden for bumble bees. So was Steve Buchmann, an adjunct professor in entomology and ecology at the University of Arizona.
Thorp told Mother Nature Network that some bumble bees are in very serious decline, and others are doing quite well.
So, how do you attract them to your garden? Buchmann was quoted as saying: “Gardening for bumblebees is similar to gardening for other bees and pollinators." To entice bumblebees to visit your garden, “plant mints, Salvia, Monarda, plants in the sunflower family and clovers."
Read Oder's article for more information.
And keep your eyes open for the soon-to-be-published California Bees and Blooms: A Guide for Gardeners and Naturalists, co-authored by entomologist Gordon Frankie of UC Berkeley, Thorp, and two others with UC Berkeley connections: photographer/entomologist Rollin Coville and floral curator Barbara Ertter.
As for Saturday, July 26 there won't be a vote on whether you like bumble bees or spiders better, nor will you be asked to sing "Itsy Bitsy Spider" or "Baby Bumble Bee." It promises, though, to be fun and educational. Plus, you can enjoy the live "petting zoo," featuring 24-year-old Rosie the tarantula, assorted walking sticks, and the colorful Madagascar hissing cockroaches. Yes, they hiss.
The gift shop is also popular. You can browse through the books, jewelry, t-shirts, sweatshirts, insect-themed candy, butterfly houses, and insect-collecting kits.
The Bohart Museum, directed by Lynn Kimsey, professor of entomology at UC Davis, houses nearly eight million insect specimens and is the seventh largest insect collection in North America. It is also the home of the California Insect Survey, a storehouse of insect biodiversity. Noted entomologist Richard M. Bohart (1913-2007) founded the museum.
The museum's regular hours are from 9 a.m. to noon and 1 to 5 p.m. Mondays through Thursdays. It's closed to the public on Fridays and on major holidays. Admission is free. For more information, email education and outreach coordinator Tabatha Yang at email@example.com or telephone her at (530) 752-0493.
A camouflaged jumping spider eyes a honey bee on Japanese anemone. (Photo by Kathy Keatley Garvey)
Robbin Thorp points at a yellow-faced bumble bee, Bombus vosnesenski. (Photo by Kathy Keatley Garvey)
If you've ever watched a karate competition, you've probably seen the roundhouse kick, tornado kick, the reverse roundhouse kick or the flying side kick.
But have you ever seen a bee do that?
We were photographing sunflower bees on our Mexican sunflowers (Tithonia) yesterday, trying to catch the territorial dive-bombing. We were shooting with a Canon E0S 7D equipped with a 100mm macro lens. Settings: ISO, 1600. Shutter speed, 1/1400 of a second. F-stop, 10.
If bees could engage in humanlike conversation, imagine this dialogue:
"This flower is mine! Get off! I want my ladies to have that flower!"
"No, it's not! It's mine. I was here first! Leave me alone!"
For awhile, a large bee, a male longhorned bee, Svastra obliqua (as identified by native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis), appeared to be the "king of the mountain." It held its ground...er...floral resource.
Suddenly, faster than my shutter speed, a smaller bee of a different species, a male longhorned bee, Melissodes (probably Melissodes agilis, Thorp said) headbutted Svastra, a scene reminiscent of a World Cup play.
One swift kick by Mr. Svastra and a surprised Mr. Melissodes shot straight up in the air, whirling end over end.
Roundhouse kick? Tornado kick? Reverse roundhouse kicK? Flying side kick?
Whatever it was, the "bee master" won.
And he wasn't even wearing a black belt.
A male longhorned sunflower bee, Svastra obliqua, foraging on a Mexican sunflower. (Photo by Kathy Keatley Garvey)
A male longhorned sunflower bee, Melissodes agilis (right), targets the larger Svastra obliqua. (Photo by Kathy Keatley Garvey)
Melissodes agilis shoots straight up after a powerful kick by Svastra obliqua. (PHoto by Kathy Keatley Garvey)
Melissodes agilis (left) goes sprawling. (Photo by Kathy Keatley Garvey)
We're almost midway through National Pollinator Week!
It's a week that we should celebrate every day.
Last weekend we spotted a newcomer to our backyard bee garden: a bumble bee species, Bombus fervidus, formerly known as Bombus californicus, as identified by native pollinator specialist Robbin Thorp, emeritus professor of entomology at the University of California, Davis, and bumble bee enthusiast Gary Zamzow of Davis.
The female was heading toward a purple coneflower, Echinacea purpurea, and then touched down in a "Queen-of-the-Mountain" moment.
This bumble bee species is commonly known as "the yellow bumble bee," according to the co-authors of the newly published Bumble Bees of North America: an Identification Guide, authored by Paul Williams, Robbin Thorp, Leif Richardson and Sheila Colla (Princeton University Press).
It's widely spread across the continent. "Evidence from DNA barcodes supports a close relationship between individuals with the darker color pattern in the west (named californicus) and individuals with the lighter color patterns in the east (named fervidus)," they wrote.
Who knew? DNA./span>/span>
A female bumble bee, Bombus fervidus, heads for a purple coneflower. (Photo by Kathy Keatley Garvey)
Bombus fervidus atop the purple coneflower. (Photo by Kathy Keatley Garvey)
By day, they fly around our yard looking for the girls.
At night, it's "Boys' Night Out."
These males, longhorned digger bees, Melissodes agilis (as identified by native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis), are absolutely spectacular. At night the males roost on our lavender stems, sometimes 8 to 10 on a single stem. Their "bedroom" gets quite crowded.
Melissodes are ground-nesting solitary bees. While the males sleep overnight on the flowers, each female is tucked away in her ground nest.
According to the Discoverlife.org: "With the apparent exception of Florida, agilis occurs throughout the United States, Southern Canada and Northern Mexico, and is in flight from May to November in the East."
Christopher O'Toole and Anthony Raw write in their book, Insects of the World, that Melissodes are found on all continents except for Australia. "The males of nearly all species have very long antennae and are colloquially known as 'longhorned bees.'"
These bees frequent plants of the sunflower family, Helianthus. In our yard, they gravitate toward the blanket flowers (Gallardia) and Mexican sunflower (Tithonia).
We've found them "going to bed" at 6 p.m. and rising around 7 a.m. We clocked one "sleepy head" getting up at 10:30 a.m. as honey bees and bumble bees buzzed around him, foraging for nectar on the lavender.
That was on Sunday, Father's Day.
These males are longhorned digger bees, Melissodes agilis, sleeping on a lavender stem. (Photo by Kathy Keatley Garvey)
A male longhorned bee, Melissodes agilis, stirs after the warmth of the sun awakens him. (Photo by Kathy Keatley Garvey)
Side view of male longhorned bee, Melissodes agilis. (Photo by Kathy Keatley Garvey)
Native bee enthusiast Celeste Ets-Hokin of the Bay Area is on a three-fold mission: She wants to protect North America's premier pollinators; she wants to inspire an appreciation for the importance and diversity of our native bees; and she wants people to create a habitat for native bees in their own gardens.
So, as an educational tool meant for all ages, Ets-Hokin originated the idea of a Wild Bee Gardens app to "show the dazzling diversity of North America's native bees." The app links native bees to many of the flowers they frequent.
The app is a comprehensive introduction to what the UC Berkeley zoology graduate calls "the essential world of native bees." It's comprised of some 300 photographs of native bees and their floral resources (primarily by entomologist/insect photographer Rollin Coville of the Bay Area) plus 100 pages "of extensive background and educational material in the form of guides."
Topics covered in the guides include:
- The role of native bees in our natural ecosystems
- The ecology and life cycles of native bees
- How to create a successful bee garden
- How to identify the native bee visitors that will appear in these gardens
Ets-Hokin also praised the "amazing job" of the design and development team, Arlo and Rebecca Armstrong.
Where to get Wild Bee Gardens? The I-Pad version is now available on the Apple App Store for the introductory price of $3.99. Those purchasing the app will receive the upcoming, expanded iPhone version at no additional cost, said Ets-Hokin, adding that they also will receive free downloads of all future enhancements.
Ets-Hokin devotes her time to the public awareness and conservation of native bees. This includes establishing a native bee demonstration garden with the Alameda County Master Gardeners at Lake Merritt, Oakland; and coordinating the publication of native bee calendars .
A screen shot of the "Wild Bee Gardens" app.
This is the app icon. It's of the yellow-faced bumble bee, Bombus vosnesenskii, heading toward a California poppy.