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Posts Tagged: USDA-ARS

What Attracts Bees to Blossoms? A Surprising Discovery by UC Davis Ecologist Rachel Vannette

A honey bee heads toward a lupine blossom. It's not just the nectar she's scented. UC Davis community ecologist Rachel Vannette has just published a paper in New Phytologist journal that shows nectar-living microbes release scents or volatile compounds, too, and can influence a pollinator's foraging preference. (Photo by Kathy Keatley Garvey)

You're watching honey bees foraging in a field.  They buzz toward a blossom, sip nectar, and then head for another blossom. Typical, right? But there's much more going on than you think. It's not just the nectar that she's scented. UC Davis...

A honey bee heads toward a lupine blossom. It's not just the nectar she's scented. UC Davis community ecologist Rachel Vannette has just published a paper in New Phytologist journal that shows nectar-living microbes release scents or volatile compounds, too, and can influence a pollinator's foraging preference. (Photo by Kathy Keatley Garvey)
A honey bee heads toward a lupine blossom. It's not just the nectar she's scented. UC Davis community ecologist Rachel Vannette has just published a paper in New Phytologist journal that shows nectar-living microbes release scents or volatile compounds, too, and can influence a pollinator's foraging preference. (Photo by Kathy Keatley Garvey)

A honey bee heads toward a lupine blossom. It's not just the nectar she's scented. UC Davis community ecologist Rachel Vannette has just published a paper in New Phytologist journal that shows nectar-living microbes release scents or volatile compounds, too, and can influence a pollinator's foraging preference. (Photo by Kathy Keatley Garvey)

Microbial stains (fungi and bacteria) isolated from floral nectar. (Photo by Rachel Vannette)
Microbial stains (fungi and bacteria) isolated from floral nectar. (Photo by Rachel Vannette)

Microbial stains (fungi and bacteria) isolated from floral nectar. (Photo by Rachel Vannette)

This is the electroantennogram (EAG) assay set-up. (Photo by Bryan Smith, USDA-ARS)
This is the electroantennogram (EAG) assay set-up. (Photo by Bryan Smith, USDA-ARS)

This is the electroantennogram (EAG) assay set-up. (Photo by Bryan Smith, USDA-ARS)

Posted on Thursday, September 28, 2017 at 5:00 PM

In the Thick of Fruit Flies

Roger Vargas

Roger Vargas is in the thick of fruit-fly research and he probably wishes those insects would thin out. He's a research entomologist at the USDA-ARS Pacific Basin Agricultural Research Center in Hilo, Hawaii.  For those who don't deal with acronyms,...

Roger Vargas
Roger Vargas

RESEARCH ENTOMOLOGIST Roger Vargas of the USDA-ARS will speak from 12:10 to 1 p.m., Wednesday, Feb. 9 at the University of Caifornia, Davis. His topic: fruit flies. The lecture is from 12:10 to 1 p.m. in 1022 Life Sciences Addition, corner of Hutchison and Kleiber Hall drives.

Fruit Fly
Fruit Fly

ORIENTAL FRUIT FLY (Bactrocera dorsalis) laying eggs; she's drilling her ovipositor into the skin of a papaya. (Photo by Scott Bauer, USDA/ARS)

Posted on Wednesday, February 2, 2011 at 8:08 PM
 
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