Posts Tagged: Gary Zamzow
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)
Don't you just love watching bumble bees?
This morning we watched a yellow-faced bumble bee (Bombus vosnesenskii) foraging on lavender. It moved quickly from one blossom to another, barely allowing us time for a "bee shoot." It was "bee gone" every time we aimed the camera.
Finally, it cooperated.
Native pollinator specialist Robbin Thorp, emeritus professor of entomology at the University of California, identified it as a male, the first (photo of a male Bombus vosnesenskii) he's seen this season.
He thinks a prize is in order.
Thorp, co-author of the newly published Bumble Bees of North America: An Identification Guide (Princeton Press), and Davis photographers Gary Zamzow and Allan Jones and yours truly usually have a friendly competition to find and photograph the first bumble bee of the year, of the month, of the day, of the minute. Well, almost. It's "Bumble Bee Alert" a lot. On Christmas Day, I managed to capture an image of a black-tailed bumble bee, Bombus melanopygus, foraging on jade blossoms at the Benicia Capitol State Historic Park, Solano County. (The black-tailed bumble bees emerge much earlier than the yellow-faced bumble bees.)
Now a Bumble Bee Watch group has launched a website to track bumble bee populations across the U.S. and Canada. This is a collaborative effort among several conservation groups and universities, according to the website and they need your sightings, including photos. As a spokesperson said: "The information will help researchers determine the status and conservation needs of bumble bees, and help locate rare or endangered populations. They will also help with identification!"
Well, today, I watched one male Bombus vosnesenskii, and he watched me.
My prize? Just enjoying--and appreciating--nature at its finest.
(Note: How can you distinguish a male from a female Bombus vosnesenskii? Said Robbin Thorp: "Boy bumble bees have an one more segment in the antenna and the abdomen than females do. The tip of the abdomen is also more rounded. Male bees do not have any pollen transport structures. In bumble bees, this means that the hind tibia is much more slender than in females which have corbiculae (pollen baskets). In Bombus vosnesenskii there is a second partial yellow band on the abdomen on T-5."
"The most accurate test of female vs male bumble bees, is to pick up a specimen with a bare hand. If you get stung, it is a female, if not, it is a boy bee. Boy bees can't sting, because they have no stinger. But I do not recommend this test unless you already know the answer! :)"
A male yellow-faced bumble bee, Bombus vosnesenskii, appears to be "resting" on lavender. (Photo by Kathy Keatley Garvey)
Another view of the male yellow-faced bumble bee, Bombus vosnesenskii. (Photo by Kathy Keatley Garvey)
Side view of the male yellow-faced bumble bee, Bombus vosnesenskii. (Photo by Kathy Keatley Garvey)
Lavender is what it's all about. (Photo by Kathy Keatley Garvey)
Peek-a-bee! The male bumble bee peers over a blossom. (Photo by Kathy Keatley Garvey)
Robbin Thorp saw it first.
Talk about an eagle eye.
Thorp, a native pollinator specialist and emeritus professor of entomology at the University of California, Davis, was monitoring the Häagen-Dazs Honey Bee Haven on Bee Biology Road, UC Davis, on July 23 when something caught his eye.
The California buckwheat was waving at him.
"While looking closely at the California buckwheat flower heads, I noticed a piece of one waving but there was no wind," recalled Thorp. "I watched a linear group of florets march across to another head. I tried to get a close-up on a flower head as background, but could not get the focus right."
So he placed the "unusual life form" on his finger to capture a better image. He captured it all right: a larva covered with buckwheat florets.
Later insect photographer Allan Jones of Davis, a regular visitor at the haven, obtained a spectacular photo of the camouflage.
Thorp identified the "unusual life form" as the larva of an emerald moth Synchlora (see http://bugguide.net/node/view/747823/bgimage). "The larva pupates with its camouflage still on then turns into a delicate green geometrid adult," he said. (See http://bugguide.net/node/view/316178/bgimage for the life cycle: caterpillar to moth).
Maybe it was serendipity, but Thorp found the larva during National Moth Week, July 23-29.
Larva of an emerald moth, Synchlora, disguised in florets. (Photo by Allan Jones)
Larva of an emerald moth, Synchlora, on Robbin Thorp's finger. (Photo by Robbin Thorp)
Davis photographer Gary Zamzow (far left); native pollinator specialist Robbin Thorp (center), emeritus professor of entomology at UC Davis, and Davis photographer Allan Jones in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)
What a beauty.
But not nearly as striking as her male counterpart.
The flame skimmer dragonfly (Libellula saturata) owned a perch on a bamboo stake last Tuesday in residential Davis.
Davis resident Gary Zamzow, a dynamite insect photographer (especially bumble bees), pointed his Pentax camera at the insect, just inches away.
The dragonfly did not move.
“The female flame skimmers are not as intensely orange as the males are and they also have the expansions on the 7th abdominal tergite that you can see in your picture (below),” said senior museum entomologist Steve Heydon of the Bohart Museum of Entomology (http://bohart.ucdavis.edu/), University of California, Davis.
If you like dragonflies, you may want to purchase a dragonfly poster at the museum, located in Room 1124 of the Academic Surge building on Crocker Lane, or online at its gift shop. It features 18 species of dragonfies, ranging from the common whitetail and green darner to the Western river cruiser and the bison snaketail. And, of course the flame skimmer.
Entomology doctoral candidate Fran Keller designed the poster with images provided and donated to the museum by naturalist Greg Kareofelas of Davis.
A female flame skimmer. (Photo by Kathy Keatley Garvey)
Female flame skimmer being photographed with the camera of Gary Zamzow. (Photo by Kathy Keatley Garvey)
We're accustomed to seeing a solitary monarch butterfly (Danaus plexippus) flitting around a garden.
But millions of them?
It was interesting to read the National Public Radio piece (Oct. 4) on Flight: A Few Million Little Creatures That Could.
The feature news story traces how a "young boy in Canada wondered where butterflies go in the winter--and spend 40 years trying to answer that question."
"In 1973, Dr. Fred Urquhart--all grown up by then--placed an ad in a newspaper in Mexico looking for volunteers to tag and observe butterflies and find their destination."
A woman and her husband answered the ad, and in the course of two years, found "hundreds of millions of butterflies."
If you access the NPR website, you'll see clips of a documentary made by Mike Slee. It's called the "Flight of the Butterflies," which NPR describes as a "3-D IMAX film about the migration of the monarchs to sanctuaries."
"What you see, you can't imagine nature ever being like this," Slee tells NPR. "Trees that are draped — that are made, almost, of butterflies. It's got a surreal, supernatural feeling to it. It sends a sort of tingle up your spine when you see it in 3-D. And then they wake up and they all begin to fly."
NPR goes on to say that "the migration of the monarch butterfly is a staggering natural phenomenon. It takes two or three generations for the creatures to make their way north to Canada — but then one 'supergeneration' makes the 2,000-mile trip back to Mexico for the winter."
At UC Davis, emeritis professor Hugh Dingle is a noted authority on the migration of animals. He's been featured in National Geographic and other magazines. The good news is that he's writing the second edition of his popular textbook, Migration: The Biology of Life on the Move (Oxford University Press).
Dingle, who is headquartered in the Sharon Lawler lab in the UC Davis Department of Entomology, was featured in the National Geographic magazine's cover story, "Mysteries of Great Migrations."
He was quoted in a LiveScience news story on “Why Do Animals Migrate?”
Frankly, we don't see as many monarchs as we'd like to. Seeing even one monarch "sends a tingle up the spine."
Plant and insect enthusiast Gary Zamzow of Davis--and an excellent photographer--recently planted some milkweed (the monarch's host plant) in the Häagen-Dazs Honey Bee Haven, a pollinator friendly garden located next to the Harry H. Laidlaw Jr. Honey Bee Research Facility on Bee Biology Road, UC Davis.
Hopefully, the milkweeds will attract many of those mighty monarchs next year and send lots of "tingles up the spine."
Monarch butterfly nectaring a Mexican sunflower (Tithonia). (Photo by Kathy Keatley Garvey)