Posts Tagged: honey bee
If you have a patch of salvia (sage) growing in your yard, watch for the nectar robbers.
Carpenter bees are among the insects that engage in nectar robbing. They drill a hole in the corolla of the flower, circumventing the usual plant-pollinator relationship. In other words, they're “cheating” pollination by "stealing" the nectar. Scientists call this "robbing the nectar."
The most prevalent nectar robbers in our yard are the mountain carpenter bees, Xylocopa tabaniformis orpifex. They're better at drilling holes than the Texas oilmen.
If you watch closely, you may see a honey bee following the carpenter bee around. She's taking the easy way out, finding the hole pierced by the carpenter bee and then gathering nectar to take back to her colony.
If a flower could communicate, it would probably say something like "Hey, you're doing an end run to get my nectar. Please don't use the side entrance--I have a front door."
Mountain carpenter bee, Xylocopa tabaniformis orpifex, engaging in nectar robbing. (Photo by Kathy Keatley Garvey)
Side view of nectar robbing by mountain carpenter bee on salvia. (Photo by Kathy Keatley Garvey)
Honey bee looks for the hole drilled by a carpenter bee. (Photo by Kathy Keatley Garvey)
Honey bee engaging in nectar robbing. (Photo by Kathy Keatley Garvey)
It's almost time to count the pollinators!
The University of California's Agriculture and Natural Resources (UC ANR) wants you set aside three minutes on Thursday, May 8 and count the pollinators wherever you live--and they live--in California. It's all part of UC ANR's Day of Science and Service celebrating the 100th year of the Cooperative Extension system.
First, count the pollinators (they can be bees, syrphid flies, bats, butterflies and the like.) Then you may choose to photograph them and upload your photos to the UC ANR website.
It should be interesting to glean the final count.
Just a few of the bees you may find:
- Honey bee (Apis mellifera)
- Green metallic sweat bee (Agapostemon texanus)
- European wool carder bee (Anthidium manicatum)
- Long-horned bee (Melissodes communis)
Other activities on May 8 focus on water and food (see the website, Day of Science and Service)
Water: in this record drought, UC has committed to reducing its water consumption by 20 percent how are you conserving?
Food: Where is food grown in your community? Fill out our California food maps.
UC President Janet Napolitano has just issued the following statement:
To celebrate the 100th anniversary of the founding of our nation's Cooperative Extension system, the University of California's Division of Agriculture and Natural Resources is sponsoring a day of science and service on May 8.
We need your help to make our science projects successful. The more people who participate, the more data we'll have to analyze.
Everyone in California is invited to participate. It's quick and easy. Go to beascientist.ucanr.edu, choose a project, and record your observations about conserving water, growing food or counting the numbers of pollinating bees, birds and butterflies in your neighborhood. You can share your observations on an interactive map and upload photos if you like.
This is a great opportunity to learn about California's natural resources and the role of agriculture in all our communities.
For 100 years UC Cooperative Extension has been turning science into solutions to build healthy communities. From creating new varieties of fruits and vegetables, fighting off invasive pest attacks, and helping school kids learn about healthy eating, UC's work benefits every Californian.
A male longhorned bee, Melissodes communis, as identified by native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis. (Photo by Kathy Keatley Garvey)
A male green metallic sweat bee Agapostemon texanus. (Photo by Kathy Keatley Garvey)
European wool carder bee, Anthidium manicatum, in flight. (Photo by Kathy Keatley Garvey)
Honey bee, Apis mellifera, on a begonia. (Photo by Kathy Keatley Garvey)
Foxgloves are called "the lurking place of the fairies."
That could be.
Foxgloves are also known by their genus name, Digitalis--meaning fingerlike. The genus is native to western and southwestern Europe, western and central Asia, Australasia and northwestern Africa.
Question: Have you ever pulled off the flowers and gloved them on your fingers? Probably. Not good for the plant, but what fun!
The common foxglove, Digitalis purpurea thrives in a shady spot in our yard. The honey bees and carpenter bees love it, as does a single earwig, which apparently considers it its "hidey hole."
How did it get its name? Legend has it that a botanist Fuchs first named it and the name corrupted or morphed into foxglove, according to Wikipedia. "It happens, moreover, the name foxglove is a very ancient one and exists in a list of plants as old as the time of Edward III."
Reports Wikpedia: "The 'folks of our ancestors were the fairies and nothing is more likely than that the pretty coloured bells of the plant would be designated 'folksgloves,' afterwards, 'foxglove.' In Wales it is declared to be a favourite lurking-place of the fairies, who are said to occasion a snapping sound when children, holding one end of the digitalis bell, suddenly strike the other on the hand to hear the clap of fairy thunder, with which the indignant fairy makes her escape from her injured retreat. In south of Scotland it is called "bloody fingers" more northward, "deadman's bells" whilst in Wales it is known as "fairy-folks-fingers" or "lambs-tongue-leaves."
No matter the origin, the exotic-looking freckled purple foxgloves will long be a favorite--not just by us, but by all the pollinators.
And a few earwigs.
A Valley carpenter bee appears to be "nectar-robbing," drilling a hole through the flower instead of going into the entrance. (Photo by Kathy Keatley Garvey)
A honey bee seeks an entrance into the foxglove. (Photo by Kathy Keatley Garvey)
Look here! An earwig has found a "hidey hole." (Photo by Kathy Keatley Garvey)
Just call it a missed opportunity.
Catmint (genus Nepeta) draws scores of insects, from honey bees to leafcutter bees to European wool carder bees.
It also draws spiders.
We usually see a cellar spider (family Pholcidae) trapping prey in its web. It inflicts a fatal bite and then wraps it for later consumption.
This cellar spider, however, crawled along a catmint stem to wait for prey. A honey bee buzzed down and began nectaring one of the lavender blossoms.
It was not aware of the predator. Just as the spider moved toward it, the bee took off.
Later we saw the cellar spider wrapping prey. A closer look revealed it was not a honey bee, a leafcutter bee or a European wool carder bee.
It was another cellar spider. Sexual cannabalism? Maybe. A very hungry cellar spider inept at catching a bee so it nailed a fellow spider instead? Perhaps.
At any rate, that was "what's for dinner."
A cellar spider eyes a honey bee in the catmint (Nepeta). (Photo by Kathy Keatley Garvey)
All wrapped up--a cellar spider nabs another cellar spider. (Photo by Kathy Keatley Garvey)
We captured these photos today of a honey bee nectaring on catmint (genus Nepeta). The bee was moving fast. To blur the wings, we set the shutter speed at 1/640 of a second with an f-stop of 13 and IS0 of 800.
But just how fast can a honey bee fly?
Its wings beat 230 times every second, according to Douglas Altshuler, a researcher at California Institute of Technology who co-authored research, "Short-Amplitude High-Frequency Wing Strokes Determine the Aerodynamics of Honeybee Flight," published in December 2005 in the Proceedings of the National Academy of Sciences.
"The honey bees have a rapid wing beat," he told LiveScience in an interview published in January 2006. "In contrast to the fruit fly that has one-eightieth the body size and flaps its wings 200 times each second, the much larger honeybee flaps its wings 230 times every second."
"And this was just for hovering," Altshuler said. "They also have to transfer pollen and nectar and carry large loads, sometimes as much as their body mass, for the rest of the colony."
The Hive and the Honey Bee, the "Bible" of beekeeping, indicates that a bee's flight speed averages about 15 miles per hour and they're capable of flying 20 miles per hour.
If they're not carrying nectar, pollen, water or propolis (plant resin), they'll fly much faster!
A honey bee can beat its wings 230 times every second. (Photo by Kathy Keatley Garvey)
Honey bee spinning like a top. (Photo by Kathy Keatley Garvey)