Posts Tagged: bark beetles
How do monarch butterflies know when to migrate? Take the case of a male monarch reared, released...
Eight microscopes will be available at the Bohart Museum of Entomology open house on Jan. 18. Visitors can view the research projects of doctoral students. (Photo by Kathy Keatley Garvey)
Ants will be the topic of Zachary Griebenow of the Phil Ward lab, UC Davis Department of Entomology and Nematology. This image shows emeritus professor Jerry Powell of UC Berkeley identifying insects at the Bohart Museum of Entomology. (Photo by Kathy Keatley Garvey)
Just call it "The Day that the Beetles Invaded the Bohart." That would be the recent open house at...
USDA Forest Research entomologist Steve Seybold (foreground) and UC Davis graduate student Corwin Parker peel bark to reveal larvae of bark beetles and wood borers. (Photo by Kathy Keatley Garvey)
UC Davis graduate student Corwin Parker examines a conifer for beetles. (Photo by Kathy Keatley Garvey)
Children flocked to the crafts table to create art focused on bark beetles. (Photo by Kathy Keatley Garvey)
Natalie Seybold (left) works on bark beetle art. In the background is Bohart Museum associate Mai Lundy. (Photo by Kathy Keatley Garvey)
Bark beetle art in the making--this is the work of Natalie Seybold of Davis. She is coloring an outline of a Dendroctonus sp. bark beetle, probably the red turpentine beetle, Dendroctonus valens, or the great spruce beetle, Dendroctonus micans. (Photo by Kathy Keatley Garvey)
This is staining to a cross section of ponderosa pine, Pinus ponderosa, by a blue-staining fungus carried by the western pine beetle, Dendroctonus brevicomis. In the background: pitch tubes around the entrance holes of western pine beetle, Dendroctonus brevicomis, on the bark surface of ponderosa pine, Pinus ponderosa.(Photo by Kathy Keatley Garvey)
Entomologist Wade Spencer, a UC Davis undergraduate student and Bohart Museum associate, reads a children's book, "Beetle Bedlam." (Photo by Kathy Keatley Garvey)
There are nearly 8 million insect specimens in the Bohart Museum of Entomology, University of...
Hanging posters in preparation for the Bohart Museum of Entomology open house on Aug. 27 are Steve Seybold lab associates Crystal Homicz (left), a UC Davis undergraduate student and research assistant, and entomologist Megan Siefker, a junior specialist in the Seybold lab, UC Davis Department of Entomology and Nematology. Siefker received her bachelor's degree in entomology in December, 2014 and Homicz is majoring in animal biology. (Photo by Kathy Keatley Garvey)
A computer monitor at the Bohart Museum displays information about Western pine beetles. (Photo by Kathy Keatley Garvey)
If you attend the Bohart Museum of Entomology open house from 1 to 4 p.m. on Sunday, Aug. 27,...
Bohart Museum of Entomology volunteer Riley Gilmartin of Davis shows a chunk of wood with beetle galleries. (Photo by Kathy Keatley Garvey)
Close-up of beetle galleries. (Photo by Kathy Keatley Garvey)
“Statewide, it's horrific,” said Greg Giusti, UC ANR Cooperative Extension advisor.
Max Moritz, UC ANR Cooperative Extension specialist in fire ecology, described the combination of exceptionally low vegetation moisture and widespread plant deaths as "a double-barreled threat."
"On top of the dry conditions, it's been unusually hot in many, many parts of the state," Moritz said. "We do have a pretty exceptional fire season stacking up, or the potential for one."
The Los Angeles Times also covered the story earlier this month.
Scott Stephens, fire science professor at UC Berkeley, said fire suppression and harvesting have made forests more dense over the last 100 years. The increased density has made trees more vulnerable as they compete for limited amounts of water, with the weaker trees more susceptible to bark beetle infestations, he said.
“If the drought continues for another two years or longer, I expect this mortality to move throughout the state,” Stephens said. “Forests that once burned frequently with low-moderate intensity fire regimes are the most susceptible.”