Posts Tagged: tree
Bee Bearding in California's Excessive Heat
Have you read the excessive heat warnings and the guidelines to prevent heat illnesses as...
As temperatures soar, feral honey bees engage in bearding to reduce the heat load inside. These bees are in a sycamore tree on the UC Davis campus. (Photo by Kathy Keatley Garvey)
Honey bees buzz in and out of their colony inside a sycamore tree on the UC Davis campus. Bee bearding helps reduce the heat load inside. Honey bee colonies require a temperature of 94 degrees for the developing brood. (Photo by Kathy Keatley Garvey)
Squirrel Vs. Bees: Sorry, No Vacancy!
Call it “The Battle Over a Tree Hollow." Feral bees have occupied—and...
Look closely and you can see a squirrel occupying a small hollow or cavity in a sycamore tree. The cavity has been home to feral bees for at least two decades. (Image taken in Vacaville by Kathy Keatley Garvey)
What's all that noise about? Can't a squirrel get some sleep? (Photo by Kathy Keatley Garvey)
The squirrel pokes his head out of his home, his sleepy hollow. (Photo by Kathy Keatley Garvey)
Occupied! No vacancy! The squirrel is aware that bees are circling, trying to move into "his" hollow. (Photo by Kathy Keatley Garvey)
With the squirrel gone, honey bees quickly move into the hollow. (Photo by Kathy Keatley Garvey)
Feral Bee Colony in Kenya: Nothing Short of Incredible
"EVERYTHING that colonies do when they are living on their own (not being managed by beekeepers) is...
A feral or wild bee colony in a fig tree in the Maasai Mara National Reserve, southern Kenya. (Photo by James Keatley Garvey)
Close-up of a feral or wild bee colony in a fig tree in the Maasai Mara National Reserve, southern Kenya. (Photo by James Keatley Garvey)
This image is of a painting of a log hive that Cornell professor Roger Morse purchased in a market in Kenya in the 1970s. (Photo courtesy of Thomas Seeley)
UC Davis Biodiversity Museum Day Includes Arboretum Tour of Texas Tree Trials
Entomologists, horticulturists, botanists, anthropologists, paleontologists, nematologists,...
Urban Tree Stewardship (UTS) Learning by Leading™ Staff Mentor Abbey Hart (left) with UTS student team member Laia Menendez Diaz (right). (Photo courtesy of the UC Davis Arboretum and Public Garden)
Urban Tree Stewardship (UTS) co-coordinator Alicia Aroche working in the Texas Tree Trials project in the Arboretum and Public Garden. (Photo courtesy of the UC Davis Arboretum and Public Garden)
A Sign of the Times: Why This Black Walnut Tree Is Dying
If you've ever walked into the courtyard on the 100 block of E Street in downtown Davis, Calif.,...
Forest entomologists Steve Seybold (right) and Jackson Audley stand by a 150-year-old black walnut tree on the 100 block of E Street. It is dying of thousand cankers disease. (Photo by Kathy Keatley Garvey)
Walnut twig beetles tunnel into branches and trunks of walnut (Juglans) where they create galleries for mating and reproduction. In association with a canker producing fungus, Tthey cause a disease known as thousand cankers disease. This tree is in downtown Davis, Calif. (Photo by Kathy Keatley Garvey)
This massive, 150-year-old black walnut tree on the 100 block of E Street, Davis, is dying of thousand cankers disease. (Photo by Kathy Keatley Garvey)