Concepedia

Roy J. Barker

RJ

23

Publications

829

Citations

17

H-Index

1957

Active since

Affiliations

Carl Hayden Bee Research Center(Current)

United States Department of Agriculture

Agricultural Research Service

University of Arizona

Roy J. Barker is an author at Carl Hayden Bee Research Center specializing in entomology, biology, and pest management.

Top concepts

Publications per year

1957–1980

23

Publications

23

Acceptance and sustenance value of naturally occurring sugars fed to newly emerged adult workers of honey bees (<i>Apis mellifera</i> L.)

Roy J. Barker, Yolanda Lehner · Journal of Experimental Zoology · 1974 · 86 citations

, , +19

Notes on Some Ecological Effects of DDT Sprayed on Elms

Roy J. Barker · Journal of Wildlife Management · 1958 · 78 citations · Full text

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Sensitivity of Visual Receptors of Carotenoid-Depleted Flies: A Vitamin A Deficiency in an Invertebrate

Timothy H. Goldsmith, Roy J. Barker, Charles F. Cohen · Science · 1964 · 76 citations

, , +19

The Influence of Food Inside the Hive on Pollen Collection by a Honeybee Colony

Roy J. Barker · Journal of Apicultural Research · 1971 · 70 citations

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Some Carbohydrates Found in Pollen and Pollen Substitutes are Toxic To Honey Bees

Roy J. Barker · Journal of Nutrition · 1977 · 66 citations

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